1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.mina.integration.xbean;
20
21 import java.util.concurrent.Executor;
22 import java.util.concurrent.ExecutorService;
23 import java.util.concurrent.Executors;
24 import java.util.concurrent.TimeUnit;
25
26 /**
27 * A ThreadPool
28 *
29 * @org.apache.xbean.XBean
30 * @author <a href="http://mina.apache.org">Apache MINA Project</a>
31 */
32 public class StandardThreadPool implements Executor {
33 private final ExecutorService delegate;
34
35 /**
36 * Creates a new StandardThreadPool instance
37 *
38 * @param maxThreads The maximum number of threads to use in the associated pool
39 */
40 public StandardThreadPool(int maxThreads) {
41 delegate = Executors.newFixedThreadPool(maxThreads);
42 }
43
44 /**
45 * {@inheritDoc}
46 */
47 @Override
48 public void execute(Runnable command) {
49 delegate.execute(command);
50 }
51
52 /**
53 * TODO wont this hang if some tasks are sufficiently badly behaved?
54 * @org.apache.xbean.DestroyMethod
55 */
56 public void stop() {
57 delegate.shutdown();
58 for (;;) {
59 try {
60 if (delegate.awaitTermination(Integer.MAX_VALUE, TimeUnit.SECONDS)) {
61 break;
62 }
63 } catch (InterruptedException e) {
64 //ignore
65 }
66 }
67 }
68 }