Add state analysis module for extracting component state transitions and alerts - #131
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cyiallou merged 2 commits intoJul 22, 2025
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Pull Request Overview
This PR introduces a new state_analysis module for analyzing microgrid component state transitions using the Reporting API. The module provides functionality to extract component state changes, detect alerts, and convert raw state values into human-readable enum names.
Key changes include:
- A new
StateRecordnamed tuple for structured representation of state transitions - Logic to fetch, process, and filter component state data for alert detection
- Support for warnings and error states with configurable filtering
Reviewed Changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
src/frequenz/lib/notebooks/reporting/_state_records.py |
Defines the StateRecord named tuple data structure |
src/frequenz/lib/notebooks/reporting/state_analysis.py |
Core implementation with state extraction, filtering, and API client integration |
tests/test_state_analysis.py |
Comprehensive test suite covering state extraction and filtering scenarios |
RELEASE_NOTES.md |
Documents the new state analysis functionality |
| @@ -0,0 +1,34 @@ | |||
| # License: MIT | |||
| # Copyright © 2024 Frequenz Energy-as-a-Service GmbH | |||
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The copyright year should be 2025 to match the current year mentioned in the PR description and other files in the codebase.
Suggested change
| # Copyright © 2024 Frequenz Energy-as-a-Service GmbH | |
| # Copyright © 2025 Frequenz Energy-as-a-Service GmbH |
| @@ -0,0 +1,302 @@ | |||
| # License: MIT | |||
| # Copyright © 2024 Frequenz Energy-as-a-Service GmbH | |||
There was a problem hiding this comment.
The copyright year should be 2025 to match the current year mentioned in the PR description and other files in the codebase.
Suggested change
| # Copyright © 2024 Frequenz Energy-as-a-Service GmbH | |
| # Copyright © 2025 Frequenz Energy-as-a-Service GmbH |
| - Added consistent logger setup across all modules for structured logging and improved observability. Example notebooks updated to demonstrate logger usage. | ||
| - The signature for passing config files MicrogridConfig.load_config() has been changed to accept a path a list of paths and a directory containing the config files. | ||
| - `MicrogridData` class needs to be initialized with a `MicrogridConfig` object instead of a path to config file(s). | ||
| - Added a new `state_analysis` module for detecting and analysing component state transitions and alerts from reporting data. |
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[nitpick] The word 'analysing' should be spelled 'analyzing' to match American English spelling conventions used elsewhere in the codebase.
Suggested change
| - Added a new `state_analysis` module for detecting and analysing component state transitions and alerts from reporting data. | |
| - Added a new `state_analysis` module for detecting and analyzing component state transitions and alerts from reporting data. |
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I usually lean towards British english, thank you.
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cyiallou
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cwasicki
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Jul 22, 2025
…and alerts This introduces a new `state_analysis` module for analysing microgrid component state transitions using the Reporting API. It includes: - A `StateRecord` named tuple for structured representation of state changes. - Logic to fetch, extract, and group state/warning/error transitions. - Filtering support for alert detection based on `ComponentStateCode` values. - A private `_resolve_enum_name()` helper for translating raw integer states to descriptive enum names. - Added `# type: ignore[arg-type]` temporarily to ignore `mypy` errors raised for the deprecated `from_proto` method. This will be replaced in the neear future when the reporting and weather clients are updated to the latest `client-common` and `common-api` versions - currently, it will raise all sorts of errors when one tries to use `enum_from_proto` from `client-common` `v0.3.3`. - Tests. Signed-off-by: cyiallou - Costas <42914163+cyiallou@users.noreply.github.com>
Previously, error and warning metric samples were tracked independently of the component's primary `state` metric. This led to incorrect or unbounded durations when the component transitioned into or out of `ERROR` state. This patch changes the extraction logic to emit error and warning `StateRecords` only while the component is in `ERROR` state, ensuring accurate segmentation. Key changes: - `_extract_state_records()` now groups samples by (microgrid_id, component_id) and collects state, error, and optional warning metrics together. - `_process_sample_group()` was rewritten to iterate over state samples and conditionally emit error and warning transitions aligned with the `ERROR` window. - Introduced an `emit()` helper to simplify record generation. Fixes: - ERROR segments with repeated values never closed - ERROR durations overshot actual ERROR state window Test suite has been updated to reflect the stricter state coordination. Signed-off-by: cyiallou - Costas <42914163+cyiallou@users.noreply.github.com>
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rebased to latest main to resolve conflict in release notes. Requires reapproval |
cwasicki
approved these changes
Jul 22, 2025
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This PR introduces a new
state_analysismodule for analysing microgrid component state transitions using the Reporting API. It includes:StateRecordnamed tuple for structured representation of state changes.ComponentStateCodevalues._resolve_enum_name()helper for translating raw integer states to descriptive enum names.# type: ignore[arg-type]temporarily to ignoremypyerrors raised for the deprecatedfrom_protomethod. This will be replaced in the neear future when the reporting and weather clients are updated to the latestclient-commonandcommon-apiversions - currently, it will raise all sorts of errors when one tries to useenum_from_protofromclient-commonv0.3.3.