/*
* Copyright 2012-2015 org.opencloudb.
*
* 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 org.opencloudb.util;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @author mycat
*/
public class ExecutorUtil {
public static final NameableExecutor create(String name, int size) {
return create(name, size, true);
}
private static final NameableExecutor create(String name, int size, boolean isDaemon) {
NameableThreadFactory factory = new NameableThreadFactory(name, isDaemon);
return new NameableExecutor(name, size, new LinkedBlockingQueue<Runnable>(), factory);
}
private static class NameableThreadFactory implements ThreadFactory {
private final ThreadGroup group;
private final String namePrefix;
private final AtomicInteger threadId;
private final boolean isDaemon;
public NameableThreadFactory(String name, boolean isDaemon) {
SecurityManager s = System.getSecurityManager();
this.group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
this.namePrefix = name;
this.threadId = new AtomicInteger(0);
this.isDaemon = isDaemon;
}
public Thread newThread(Runnable r) {
Thread t = new Thread(group, r, namePrefix + threadId.getAndIncrement());
t.setDaemon(isDaemon);
if (t.getPriority() != Thread.NORM_PRIORITY) {
t.setPriority(Thread.NORM_PRIORITY);
}
return t;
}
}
}