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// Copyright (C) 2012 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 com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import com.google.gerrit.server.FanOutExecutor;
import com.google.gerrit.server.git.WorkQueue;
import com.google.gerrit.server.logging.LoggingContextAwareExecutorService;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.Singleton;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.eclipse.jgit.lib.Config;
/**
* Module providing the {@link ReceiveCommitsExecutor}.
*
* <p>This module is intended to be installed at the top level when creating a {@code sysInjector}
* in {@code Daemon} or similar, not nested in another module. This ensures the module can be
* swapped out for the googlesource.com implementation.
*/
public class SysExecutorModule extends AbstractModule {
@Override
protected void configure() {}
@Provides
@Singleton
@ReceiveCommitsExecutor
public ExecutorService createReceiveCommitsExecutor(
@GerritServerConfig Config config, WorkQueue queues) {
int poolSize =
config.getInt(
"receive", null, "threadPoolSize", Runtime.getRuntime().availableProcessors());
return queues.createQueue(poolSize, "ReceiveCommits", true);
}
@Provides
@Singleton
@SendEmailExecutor
public ExecutorService createSendEmailExecutor(
@GerritServerConfig Config config, WorkQueue queues) {
int poolSize = config.getInt("sendemail", null, "threadPoolSize", 1);
if (poolSize == 0) {
return MoreExecutors.newDirectExecutorService();
}
return queues.createQueue(poolSize, "SendEmail", true);
}
@Provides
@Singleton
@FanOutExecutor
public ExecutorService createFanOutExecutor(@GerritServerConfig Config config, WorkQueue queues) {
int poolSize = config.getInt("execution", null, "fanOutThreadPoolSize", 25);
if (poolSize == 0) {
return MoreExecutors.newDirectExecutorService();
}
return queues.createQueue(poolSize, "FanOut");
}
@Provides
@Singleton
@ChangeUpdateExecutor
public ListeningExecutorService createChangeUpdateExecutor(@GerritServerConfig Config config) {
int poolSize = config.getInt("receive", null, "changeUpdateThreads", 1);
if (poolSize <= 1) {
return MoreExecutors.newDirectExecutorService();
}
return MoreExecutors.listeningDecorator(
new LoggingContextAwareExecutorService(
MoreExecutors.getExitingExecutorService(
new ThreadPoolExecutor(
1,
poolSize,
10,
TimeUnit.MINUTES,
new ArrayBlockingQueue<Runnable>(poolSize),
new ThreadFactoryBuilder()
.setNameFormat("ChangeUpdate-%d")
.setDaemon(true)
.build(),
new ThreadPoolExecutor.CallerRunsPolicy()))));
}
}
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