/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.core.util;
import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class ExecutorUtils {
/**
* Creates a fixed thread pool with named daemon threads that will expire after 60 seconds of
* inactivity.
* @param nThreads
* @param name
* @return
*/
public static ExecutorService newFixedThreadPool(int nThreads, String name) {
return newFixedThreadPool(nThreads, Integer.MAX_VALUE, name);
}
public static ExecutorService newFixedThreadPool(int nThreads, int maxQueue, String name) {
ThreadPoolExecutor tpe = new ThreadPoolExecutor(nThreads, nThreads,
60L, TimeUnit.SECONDS,
maxQueue==0?new SynchronousQueue<Runnable>():new LinkedBlockingQueue<Runnable>(maxQueue), new NamedThreadFactory(name));
tpe.allowCoreThreadTimeOut(true);
return tpe;
}
private static Executor direct = new Executor() {
@Override
public void execute(Runnable command) {
command.run();
}
};
public static Executor getDirectExecutor() {
return direct;
}
}