1 files changed, 71 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/git/GarbageCollectionRunner.java b/java/com/google/gerrit/server/git/GarbageCollectionRunner.java
new file mode 100644
index 0000000000..b44251d8cf
--- /dev/null
+++ b/java/com/google/gerrit/server/git/GarbageCollectionRunner.java
@@ -0,0 +1,71 @@
+// 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.server.git;
+
+import com.google.common.collect.Lists;
+import com.google.common.flogger.FluentLogger;
+import com.google.gerrit.extensions.events.LifecycleListener;
+import com.google.gerrit.server.config.GcConfig;
+import com.google.gerrit.server.project.ProjectCache;
+import com.google.inject.Inject;
+
+/** Runnable to enable scheduling gc to run periodically */
+public class GarbageCollectionRunner implements Runnable {
+  private static final FluentLogger logger = FluentLogger.forEnclosingClass();
+
+  static class Lifecycle implements LifecycleListener {
+    private final WorkQueue queue;
+    private final GarbageCollectionRunner gcRunner;
+    private final GcConfig gcConfig;
+
+    @Inject
+    Lifecycle(WorkQueue queue, GarbageCollectionRunner gcRunner, GcConfig config) {
+      this.queue = queue;
+      this.gcRunner = gcRunner;
+      this.gcConfig = config;
+    }
+
+    @Override
+    public void start() {
+      gcConfig.getSchedule().ifPresent(s -> queue.scheduleAtFixedRate(gcRunner, s));
+    }
+
+    @Override
+    public void stop() {
+      // handled by WorkQueue.stop() already
+    }
+  }
+
+  private final GarbageCollection.Factory garbageCollectionFactory;
+  private final ProjectCache projectCache;
+
+  @Inject
+  GarbageCollectionRunner(
+      GarbageCollection.Factory garbageCollectionFactory, ProjectCache projectCache) {
+    this.garbageCollectionFactory = garbageCollectionFactory;
+    this.projectCache = projectCache;
+  }
+
+  @Override
+  public void run() {
+    logger.atInfo().log("Triggering gc on all repositories");
+    garbageCollectionFactory.create().run(Lists.newArrayList(projectCache.all()));
+  }
+
+  @Override
+  public String toString() {
+    return "GC runner";
+  }
+}