001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *  http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.mina.integration.xbean;
020
021import java.util.concurrent.Executor;
022import java.util.concurrent.ExecutorService;
023import java.util.concurrent.Executors;
024import java.util.concurrent.TimeUnit;
025
026/**
027 * @org.apache.xbean.XBean
028 * @author <a href="http://mina.apache.org">Apache MINA Project</a>
029 */
030public class StandardThreadPool implements Executor {
031    private final ExecutorService delegate;
032
033    public StandardThreadPool(int maxThreads) {
034        delegate = Executors.newFixedThreadPool(maxThreads);
035    }
036
037    public void execute(Runnable command) {
038        delegate.execute(command);
039    }
040
041    /**
042     * TODO wont this hang if some tasks are sufficiently badly behaved?
043     * @org.apache.xbean.DestroyMethod
044     */
045    public void stop() {
046        delegate.shutdown();
047        for (;;) {
048            try {
049                if (delegate.awaitTermination(Integer.MAX_VALUE, TimeUnit.SECONDS)) {
050                    break;
051                }
052            } catch (InterruptedException e) {
053                //ignore
054            }
055        }
056    }
057}