Add the WordPressUnzipException

- Leave a log if a file is not unzipped

Author: junichi11

src/org/netbeans/modules/php/wordpress/WordPressPhpModuleExtender.java

@@ -82,6 +82,7 @@
 import org.netbeans.modules.php.wordpress.util.NetUtils;
 import org.netbeans.modules.php.wordpress.util.WPFileUtils;
 import org.netbeans.modules.php.wordpress.util.WPZipEntryFilter;
+import org.netbeans.modules.php.wordpress.util.WordPressUnzipException;
 import org.netbeans.modules.php.wordpress.wpapis.WordPressVersionCheckApi;
 import org.openide.filesystems.FileObject;
 import org.openide.filesystems.FileUtil;
@@ -203,7 +204,8 @@ public Set<FileObject> extend(PhpModule pm) throws ExtendingException {
                 WPFileUtils.unzip(urlPath, FileUtil.toFile(sourceDirectory), new WPZipEntryFilter(panel.getUnzipStatusTextField()));
             } catch (MalformedURLException ex) {
                 Exceptions.printStackTrace(ex);
-            } catch (IOException ex) {
+            } catch (IOException | WordPressUnzipException ex) {
+                LOGGER.log(Level.WARNING, ex.getMessage());
                 throw new ExtendingException(ex.getLocalizedMessage());
             }
         } else if (panel.useLocalFile()) {

src/org/netbeans/modules/php/wordpress/util/WPFileUtils.java

@@ -143,14 +143,16 @@ private static void compress(File target, File[] files, ZipOutputStream zipOutpu
      * @throws MalformedURLException
      * @throws IOException
      */
-    public static void unzip(String url, File targetDirectory, ZipEntryFilter filter) throws MalformedURLException, IOException {
+    public static void unzip(String url, File targetDirectory, ZipEntryFilter filter) throws MalformedURLException, IOException, WordPressUnzipException {
         if (targetDirectory == null) {
             return;
         }
         URL zipUrl = new URL(url);
         try (ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(zipUrl.openStream()))) {
             ZipEntry entry;
+            boolean isEmpty = true;
             while ((entry = zipInputStream.getNextEntry()) != null) {
+                isEmpty = false;
                 if (!filter.accept(entry)) {
                     zipInputStream.closeEntry();
                     continue;
@@ -163,6 +165,9 @@ public static void unzip(String url, File targetDirectory, ZipEntryFilter filter
                 createDirectories(outFile, entry);
                 writeFile(outFile, zipInputStream, entry);
             }
+            if (isEmpty) {
+                throw new WordPressUnzipException("Cannot unzip:" + url);
+            }
         }
     }
 

src/org/netbeans/modules/php/wordpress/util/WordPressUnzipException.java

@@ -0,0 +1,66 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved.
+ *
+ * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
+ * Other names may be trademarks of their respective owners.
+ *
+ * The contents of this file are subject to the terms of either the GNU
+ * General Public License Version 2 only ("GPL") or the Common
+ * Development and Distribution License("CDDL") (collectively, the
+ * "License"). You may not use this file except in compliance with the
+ * License. You can obtain a copy of the License at
+ * http://www.netbeans.org/cddl-gplv2.html
+ * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
+ * specific language governing permissions and limitations under the
+ * License.  When distributing the software, include this License Header
+ * Notice in each file and include the License file at
+ * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the GPL Version 2 section of the License file that
+ * accompanied this code. If applicable, add the following below the
+ * License Header, with the fields enclosed by brackets [] replaced by
+ * your own identifying information:
+ * "Portions Copyrighted [year] [name of copyright owner]"
+ *
+ * If you wish your version of this file to be governed by only the CDDL
+ * or only the GPL Version 2, indicate your decision by adding
+ * "[Contributor] elects to include this software in this distribution
+ * under the [CDDL or GPL Version 2] license." If you do not indicate a
+ * single choice of license, a recipient has the option to distribute
+ * your version of this file under either the CDDL, the GPL Version 2 or
+ * to extend the choice of license to its licensees as provided above.
+ * However, if you add GPL Version 2 code and therefore, elected the GPL
+ * Version 2 license, then the option applies only if the new code is
+ * made subject to such option by the copyright holder.
+ *
+ * Contributor(s):
+ */
+package org.netbeans.modules.php.wordpress.util;
+
+/**
+ *
+ * @author junichi11
+ */
+public class WordPressUnzipException extends Exception {
+
+    private static final long serialVersionUID = 1607655567611796935L;
+
+    /**
+     * Creates a new instance of <code>WordPressUnzipException</code> without
+     * detail message.
+     */
+    public WordPressUnzipException() {
+    }
+
+    /**
+     * Constructs an instance of <code>WordPressUnzipException</code> with the
+     * specified detail message.
+     *
+     * @param msg the detail message.
+     */
+    public WordPressUnzipException(String msg) {
+        super(msg);
+    }
+}