Dissolve gerrit-pgm top-level directory

Change-Id: Ia03015b91da3df4a8672bc30f13b3e3f048a628c

java/com/google/gerrit/pgm/WarDistribution.java

@@ -0,0 +1,70 @@
+// Copyright (C) 2014 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.pgm;
+
+import static com.google.gerrit.pgm.init.InitPlugins.JAR;
+import static com.google.gerrit.pgm.init.InitPlugins.PLUGIN_DIR;
+
+import com.google.gerrit.launcher.GerritLauncher;
+import com.google.gerrit.pgm.init.PluginsDistribution;
+import com.google.inject.Singleton;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@Singleton
+public class WarDistribution implements PluginsDistribution {
+  private static final Logger log = LoggerFactory.getLogger(WarDistribution.class);
+
+  @Override
+  public void foreach(Processor processor) throws IOException {
+    File myWar = GerritLauncher.getDistributionArchive();
+    if (myWar.isFile()) {
+      try (ZipFile zf = new ZipFile(myWar)) {
+        Enumeration<? extends ZipEntry> e = zf.entries();
+        while (e.hasMoreElements()) {
+          ZipEntry ze = e.nextElement();
+          if (ze.isDirectory()) {
+            continue;
+          }
+
+          if (ze.getName().startsWith(PLUGIN_DIR) && ze.getName().endsWith(JAR)) {
+            String pluginJarName = new File(ze.getName()).getName();
+            String pluginName = pluginJarName.substring(0, pluginJarName.length() - JAR.length());
+            try (InputStream in = zf.getInputStream(ze)) {
+              processor.process(pluginName, in);
+            } catch (IOException ioe) {
+              log.error(
+                  String.format("Error opening plugin %s: %s", ze.getName(), ioe.getMessage()));
+            }
+          }
+        }
+      }
+    }
+  }
+
+  @Override
+  public List<String> listPluginNames() throws FileNotFoundException {
+    // not yet used
+    throw new UnsupportedOperationException();
+  }
+}