01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * 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;
33: import java.util.logging.Logger;
34:
35: /**
36: * A generic pool of threads available for Alarms and Work tasks.
37: */
38: public class ScheduledExecutorServiceImpl implements Executor {
39: private static final L10N L = new L10N(
40: ScheduledExecutorServiceImpl.class);
41: private static final Logger log = Logger
42: .getLogger(ScheduledExecutorServiceImpl.class.getName());
43:
44: private static ScheduledExecutorServiceImpl _service = new ScheduledExecutorServiceImpl();
45:
46: private ThreadPool _threadPool = ThreadPool.getThreadPool();
47:
48: private ScheduledExecutorServiceImpl() {
49: }
50:
51: public static ScheduledExecutorServiceImpl create() {
52: return _service;
53: }
54:
55: //
56: // java.util.concurrent
57: //
58:
59: public void execute(Runnable task) {
60: if (task == null)
61: throw new NullPointerException();
62:
63: _threadPool.schedule(task);
64: }
65: }
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