/*
* Copyright 1999-2011 Alibaba Group.
*
* 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.alibaba.dubbo.common.threadpool.support.limited;
import java.util.concurrent.Executor;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import com.alibaba.dubbo.common.Constants;
import com.alibaba.dubbo.common.URL;
import com.alibaba.dubbo.common.threadpool.ThreadPool;
import com.alibaba.dubbo.common.threadpool.support.AbortPolicyWithReport;
import com.alibaba.dubbo.common.utils.NamedThreadFactory;
/**
* @author <a href="mailto:gang.lvg@alibaba-inc.com">kimi</a>
*/
public class LimitedThreadPool implements ThreadPool {
public Executor getExecutor(URL url) {
String threadName = url.getParameter(Constants.THREAD_NAME_KEY, Constants.DEFAULT_THREAD_NAME);
int min = url.getParameter(Constants.THREADS_MIN_KEY, Constants.DEFAULT_MIN_THREADS);
int max = url.getParameter(Constants.THREADS_MAX_KEY, Constants.DEFAULT_MAX_THREADS);
int queues = url.getParameter(Constants.QUEUES_KEY, Constants.DEFAULT_QUEUES);
return new ThreadPoolExecutor(min, max, Long.MAX_VALUE, TimeUnit.MILLISECONDS,
queues <= 0 ? new SynchronousQueue<Runnable>() : new LinkedBlockingQueue<Runnable>(queues),
new NamedThreadFactory(threadName, true), new AbortPolicyWithReport(threadName, url));
}
}