1 files changed, 80 insertions, 0 deletions
diff --git a/sonar-scanner-engine/src/main/java/org/sonar/scanner/bootstrap/ScannerPluginJarExploder.java b/sonar-scanner-engine/src/main/java/org/sonar/scanner/bootstrap/ScannerPluginJarExploder.java
new file mode 100644
index 00000000000..f2d936e87d9
--- /dev/null
+++ b/sonar-scanner-engine/src/main/java/org/sonar/scanner/bootstrap/ScannerPluginJarExploder.java
@@ -0,0 +1,80 @@
+/*
+ * SonarQube
+ * Copyright (C) 2009-2016 SonarSource SA
+ * mailto:contact AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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.
+ */
+package org.sonar.scanner.bootstrap;
+
+import org.apache.commons.io.FileUtils;
+import org.sonar.api.batch.ScannerSide;
+import org.sonar.api.utils.ZipUtils;
+import org.sonar.core.platform.ExplodedPlugin;
+import org.sonar.core.platform.PluginJarExploder;
+import org.sonar.core.platform.PluginInfo;
+import org.sonar.home.cache.FileCache;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import static org.sonar.core.util.FileUtils.deleteQuietly;
+
+@ScannerSide
+public class ScannerPluginJarExploder extends PluginJarExploder {
+
+  private final FileCache fileCache;
+
+  public ScannerPluginJarExploder(FileCache fileCache) {
+    this.fileCache = fileCache;
+  }
+
+  @Override
+  public ExplodedPlugin explode(PluginInfo info) {
+    try {
+      File dir = unzipFile(info.getNonNullJarFile());
+      return explodeFromUnzippedDir(info.getKey(), info.getNonNullJarFile(), dir);
+    } catch (Exception e) {
+      throw new IllegalStateException(String.format("Fail to open plugin [%s]: %s", info.getKey(), info.getNonNullJarFile().getAbsolutePath()), e);
+    }
+  }
+
+  private File unzipFile(File cachedFile) throws IOException {
+    String filename = cachedFile.getName();
+    File destDir = new File(cachedFile.getParentFile(), filename + "_unzip");
+    File lockFile = new File(cachedFile.getParentFile(), filename + "_unzip.lock");
+    if (!destDir.exists()) {
+      FileOutputStream out = new FileOutputStream(lockFile);
+      try {
+        java.nio.channels.FileLock lock = out.getChannel().lock();
+        try {
+          // Recheck in case of concurrent processes
+          if (!destDir.exists()) {
+            File tempDir = fileCache.createTempDir();
+            ZipUtils.unzip(cachedFile, tempDir, newLibFilter());
+            FileUtils.moveDirectory(tempDir, destDir);
+          }
+        } finally {
+          lock.release();
+        }
+      } finally {
+        out.close();
+        deleteQuietly(lockFile);
+      }
+    }
+    return destDir;
+  }
+}