org.apache.rocketmq.shaded.ch.qos.logback.core.util.ExecutorServiceUtil Maven / Gradle / Ivy
/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2015, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package org.apache.rocketmq.shaded.ch.qos.logback.core.util;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
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;
import org.apache.rocketmq.shaded.ch.qos.logback.core.CoreConstants;
/**
* Static utility methods for manipulating an {@link ExecutorService}.
*
* @author Carl Harris
* @author Mikhail Mazursky
*/
public class ExecutorServiceUtil {
private static final ThreadFactory THREAD_FACTORY = new ThreadFactory() {
private final ThreadFactory defaultFactory = Executors.defaultThreadFactory();
private final AtomicInteger threadNumber = new AtomicInteger(1);
public Thread newThread(Runnable r) {
Thread thread = defaultFactory.newThread(r);
if (!thread.isDaemon()) {
thread.setDaemon(true);
}
thread.setName("logback-" + threadNumber.getAndIncrement());
return thread;
}
};
static public ScheduledExecutorService newScheduledExecutorService() {
return new ScheduledThreadPoolExecutor(CoreConstants.SCHEDULED_EXECUTOR_POOL_SIZE, THREAD_FACTORY);
}
/**
* Creates an executor service suitable for use by logback components.
* @return executor service
*/
static public ExecutorService newExecutorService() {
return new ThreadPoolExecutor(CoreConstants.CORE_POOL_SIZE, CoreConstants.MAX_POOL_SIZE, 0L, TimeUnit.MILLISECONDS, new SynchronousQueue(),
THREAD_FACTORY);
}
/**
* Shuts down an executor service.
*
* @param executorService the executor service to shut down
*/
static public void shutdown(ExecutorService executorService) {
executorService.shutdownNow();
}
}