/*
* JBoss, Home of Professional Open Source
* Copyright 2009 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.executors;
import org.infinispan.configuration.global.GlobalConfiguration;
import org.infinispan.factories.annotations.Inject;
import org.infinispan.util.TypedProperties;
import java.util.Properties;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Default executor factory that creates executors using the JDK Executors service.
*
* @author Manik Surtani
* @since 4.0
*/
public class DefaultExecutorFactory implements ExecutorFactory {
private final AtomicInteger counter = new AtomicInteger(0);
@Override
public ExecutorService getExecutor(Properties p) {
TypedProperties tp = TypedProperties.toTypedProperties(p);
int maxThreads = tp.getIntProperty("maxThreads", 1);
int queueSize = tp.getIntProperty("queueSize", 100000);
int coreThreads = queueSize == 0 ? 1 : tp.getIntProperty("coreThreads", maxThreads);
long keepAliveTime = tp.getLongProperty("keepAliveTime", 60000);
final int threadPrio = tp.getIntProperty("threadPriority", Thread.MIN_PRIORITY);
final String threadNamePrefix = tp.getProperty("threadNamePrefix", tp.getProperty("componentName", "Thread"));
final String threadNameSuffix = tp.getProperty("threadNameSuffix", "");
BlockingQueue<Runnable> queue = queueSize == 0 ? new SynchronousQueue<Runnable>() :
new LinkedBlockingQueue<Runnable>(queueSize);
ThreadFactory tf = new ThreadFactory() {
@Override
public Thread newThread(Runnable r) {
String threadName = threadNamePrefix + "-" + counter.getAndIncrement() + threadNameSuffix;
Thread th = new Thread(r, threadName);
th.setDaemon(true);
th.setPriority(threadPrio);
return th;
}
};
return new ThreadPoolExecutor(coreThreads, maxThreads, keepAliveTime, TimeUnit.MILLISECONDS, queue, tf,
new ThreadPoolExecutor.CallerRunsPolicy());
}
}