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Java > Open Source Codes > com > caucho > util > ResinThreadPoolExecutor


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  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.util;
31
32 import java.util.concurrent.Executor JavaDoc;
33 import java.util.logging.Logger JavaDoc;
34
35 /**
36  * A generic pool of threads available for Alarms and Work tasks.
37  */
38 public class ResinThreadPoolExecutor implements Executor JavaDoc {
39   private static final L10N L = new L10N(ResinThreadPoolExecutor.class);
40   private static final Logger JavaDoc log
41     = Logger.getLogger(ResinThreadPoolExecutor.class.getName());
42
43   private static ResinThreadPoolExecutor _service
44     = new ResinThreadPoolExecutor();
45     
46   private ThreadPool _threadPool = ThreadPool.getThreadPool();
47
48   private ResinThreadPoolExecutor()
49   {
50   }
51
52   public static ResinThreadPoolExecutor getThreadPool()
53   {
54     return _service;
55   }
56
57   //
58 // java.util.concurrent
59 //
60
61   public void execute(Runnable JavaDoc task)
62   {
63     if (task == null)
64       throw new NullPointerException JavaDoc();
65     
66     _threadPool.schedule(task);
67   }
68
69   /**
70    * Resets the thread pool, letting old threads drain.
71    */
72   public void stopEnvironment(ClassLoader JavaDoc env)
73   {
74     _threadPool.closeEnvironment(env);
75   }
76
77   public String JavaDoc toString()
78   {
79     return "ResinThreadPoolExecutor[]";
80   }
81 }
82
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