| // Copyright (C) 2009 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.config; |
| |
| import static java.util.concurrent.TimeUnit.MINUTES; |
| import static java.util.concurrent.TimeUnit.SECONDS; |
| |
| import com.google.gerrit.extensions.events.LifecycleListener; |
| import com.google.gerrit.lifecycle.LifecycleModule; |
| import com.google.gerrit.server.git.ReloadSubmitQueueOp; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| |
| import org.eclipse.jgit.lib.Config; |
| |
| import java.util.concurrent.ScheduledFuture; |
| |
| /** Configuration for a master node in a cluster of servers. */ |
| public class MasterNodeStartup extends LifecycleModule { |
| @Override |
| public void configure() { |
| listener().to(Lifecycle.class); |
| } |
| |
| @Singleton |
| static class Lifecycle implements LifecycleListener { |
| private static final int INITIAL_DELAY_S = 15; |
| |
| private final ReloadSubmitQueueOp.Factory submit; |
| private final long delay; |
| private volatile ScheduledFuture<?> handle; |
| |
| @Inject |
| Lifecycle(ReloadSubmitQueueOp.Factory submit, |
| @GerritServerConfig Config config) { |
| this.submit = submit; |
| this.delay = ConfigUtil.getTimeUnit(config, |
| "changeMerge", null, "checkFrequency", |
| SECONDS.convert(5, MINUTES), SECONDS); |
| } |
| |
| @Override |
| public void start() { |
| if (delay > 0) { |
| handle = submit.create() |
| .startWithFixedDelay(INITIAL_DELAY_S, delay, SECONDS); |
| } else { |
| handle = submit.create().start(INITIAL_DELAY_S, SECONDS); |
| } |
| } |
| |
| @Override |
| public void stop() { |
| ScheduledFuture<?> f = handle; |
| if (f != null) { |
| handle = null; |
| f.cancel(true); |
| } |
| } |
| } |
| } |