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Java > Open Source Codes > com > caucho > jca > WorkThread


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.jca;
30
31 import com.caucho.log.Log;
32 import com.caucho.util.L10N;
33 import com.caucho.util.ThreadTask;
34
35 import javax.resource.spi.work.Work JavaDoc;
36 import javax.resource.spi.work.WorkEvent JavaDoc;
37 import javax.resource.spi.work.WorkListener JavaDoc;
38 import java.util.logging.Logger JavaDoc;
39
40 /**
41  * Implementation of the work manager.
42  */
43 public class WorkThread implements ThreadTask {
44   private static final L10N L = new L10N(WorkThread.class);
45   private static final Logger JavaDoc log = Log.open(WorkThread.class);
46
47   private boolean _isStarted;
48   private WorkManagerImpl _manager;
49   private ClassLoader JavaDoc _classLoader;
50   private Work JavaDoc _work;
51   private WorkListener JavaDoc _listener;
52
53   /**
54    * Constructor.
55    */
56   WorkThread(WorkManagerImpl manager, Work JavaDoc work,
57          ClassLoader JavaDoc classLoader, WorkListener JavaDoc listener)
58   {
59     _manager = manager;
60     _work = work;
61     _classLoader = classLoader;
62     _listener = listener;
63   }
64
65   /**
66    * Returns true if it's started.
67    */
68   public boolean isStarted()
69   {
70     return _isStarted;
71   }
72
73   /**
74    * The runnable.
75    */
76   public void run()
77   {
78     Thread JavaDoc thread = Thread.currentThread();
79     thread.setContextClassLoader(_classLoader);
80
81     _isStarted = true;
82
83     try {
84       synchronized (this) {
85     notifyAll();
86       }
87     } catch (Exception JavaDoc e) {
88     }
89
90     try {
91       _work.run();
92
93       if (_listener != null)
94     _listener.workCompleted(new WorkEvent JavaDoc(_manager,
95                           WorkEvent.WORK_COMPLETED,
96                           _work, null, 0));
97     } finally {
98       _manager.completeWork(_work);
99     }
100   }
101 }
102
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