1 /***
2 * Redistribution and use of this software and associated documentation
3 * ("Software"), with or without modification, are permitted provided
4 * that the following conditions are met:
5 *
6 * 1. Redistributions of source code must retain copyright
7 * statements and notices. Redistributions must also contain a
8 * copy of this document.
9 *
10 * 2. Redistributions in binary form must reproduce the
11 * above copyright notice, this list of conditions and the
12 * following disclaimer in the documentation and/or other
13 * materials provided with the distribution.
14 *
15 * 3. The name "Exolab" must not be used to endorse or promote
16 * products derived from this Software without prior written
17 * permission of Exoffice Technologies. For written permission,
18 * please contact info@exolab.org.
19 *
20 * 4. Products derived from this Software may not be called "Exolab"
21 * nor may "Exolab" appear in their names without prior written
22 * permission of Exoffice Technologies. Exolab is a registered
23 * trademark of Exoffice Technologies.
24 *
25 * 5. Due credit should be given to the Exolab Project
26 * (http://www.exolab.org/).
27 *
28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39 * OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Copyright 2006 (C) Exoffice Technologies Inc. All Rights Reserved.
42 *
43 * $Id: DefaultThreadPoolFactory.java,v 1.1 2006/02/23 11:07:05 tanderson Exp $
44 */
45 package org.exolab.jms.common.threads;
46
47 import EDU.oswego.cs.dl.util.concurrent.PooledExecutor;
48 import EDU.oswego.cs.dl.util.concurrent.Channel;
49
50
51 /***
52 * Default {@link ThreadPoolFactory} implementation that enables a {@link
53 * ThreadListener} to be associated with each pool.
54 *
55 * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
56 * @version $Revision: 1.1 $ $Date: 2006/02/23 11:07:05 $
57 */
58 public class DefaultThreadPoolFactory implements ThreadPoolFactory {
59
60 /***
61 * The thread listener. May be <code>null</code>.
62 */
63 private final ThreadListener _listener;
64
65
66 /***
67 * Construct a new <code>DefaultThreadPoolFactory</code>.
68 *
69 * @param listener the thread listener. May be <code>null</code>
70 */
71 public DefaultThreadPoolFactory(ThreadListener listener) {
72 _listener = listener;
73 }
74
75 /***
76 * Construct a new <code>PooledExecutor</code>.
77 *
78 * @param name the name to assign the thread group and worker
79 * threads
80 * @param maxPoolSize the maximum no. of threads to use
81 */
82 public PooledExecutor create(String name, int maxPoolSize) {
83 return init(new ThreadPool(name, maxPoolSize));
84 }
85
86 /***
87 * Construct a new <code>ThreadPool</code>.
88 *
89 * @param name the name to assign the thread group and worker
90 * threads
91 * @param channel the channel for queueing
92 * @param maxPoolSize the maximum no. of threads to use
93 */
94 public PooledExecutor create(String name, Channel channel, int maxPoolSize) {
95 return init(new ThreadPool(name, channel, maxPoolSize));
96 }
97
98 /***
99 * Initialises a pool.
100 *
101 * @param pool the pool to initialise
102 * @return the pool
103 */
104 protected ThreadPool init(ThreadPool pool) {
105 pool.setThreadListener(_listener);
106 return pool;
107 }
108
109 }