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 2004-2006 (C) Exoffice Technologies Inc. All Rights Reserved.
42 *
43 * $Id: ThreadFactory.java,v 1.1 2006/02/23 11:07:05 tanderson Exp $
44 */
45 package org.exolab.jms.common.threads;
46
47
48 /***
49 * Thread factory.
50 *
51 * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
52 * @version $Revision: 1.1 $ $Date: 2006/02/23 11:07:05 $
53 */
54 public class ThreadFactory
55 implements EDU.oswego.cs.dl.util.concurrent.ThreadFactory {
56
57 /***
58 * The thread group which threads will belong to. May be <code>null</code>
59 */
60 private final ThreadGroup _group;
61
62 /***
63 * The name to prefix each thread name with
64 */
65 private final String _name;
66
67 /***
68 * Determines if threads will be daemon threads
69 */
70 private final boolean _daemon;
71
72 /***
73 * Seed value for thread names
74 */
75 private volatile int _nameSeed = 0;
76
77
78 /***
79 * Construct a new <code>ThreadFactory</code>
80 *
81 * @param group the thread group. May be <code>null</code>
82 * @param name the name to prefix each thread name with
83 * @param daemon if <code>true</code> all threads will be daemon threads
84 */
85 public ThreadFactory(ThreadGroup group, String name, boolean daemon) {
86 _group = group;
87 _name = name;
88 _daemon = daemon;
89 }
90
91 /***
92 * Create a new thread that will run the given command when started
93 *
94 * @param command the command to run. May be <code>null</code>
95 * @return a new thread
96 */
97 public Thread newThread(Runnable command) {
98 String name = null;
99 if (_name != null) {
100 int suffix = ++_nameSeed;
101 name = _name + suffix;
102 }
103 Thread thread = new Thread(_group, command, name);
104 thread.setDaemon(_daemon);
105 return thread;
106 }
107 }