1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.events;
24  
25  import com.liferay.portal.kernel.util.GetterUtil;
26  
27  import java.util.Map;
28  
29  /**
30   * <a href="ShutdownHook.java.html"><b><i>View Source</i></b></a>
31   *
32   * @author Brian Wing Shun Chan
33   *
34   */
35  public class ShutdownHook implements Runnable {
36  
37      public void run() {
38          if (GetterUtil.getBoolean(
39                  System.getProperty("shutdown.hook.print.full.thread.dump"))) {
40  
41              printFullThreadDump();
42          }
43      }
44  
45      protected void printFullThreadDump() {
46          StringBuilder sb = new StringBuilder();
47  
48          sb.append("Full thread dump ");
49          sb.append(System.getProperty("java.vm.name"));
50          sb.append(" ");
51          sb.append(System.getProperty("java.vm.version"));
52          sb.append("\n\n");
53  
54          Map<Thread, StackTraceElement[]> stackTraces =
55              Thread.getAllStackTraces();
56  
57          for (Thread thread : stackTraces.keySet()) {
58              StackTraceElement[] elements = stackTraces.get(thread);
59  
60              sb.append("\"");
61              sb.append(thread.getName());
62              sb.append("\"");
63  
64              if (thread.getThreadGroup() != null) {
65                  sb.append(" (");
66                  sb.append(thread.getThreadGroup().getName());
67                  sb.append(")");
68              }
69  
70              sb.append(", priority=");
71              sb.append(thread.getPriority());
72              sb.append(", id=");
73              sb.append(thread.getId());
74              sb.append(", state=");
75              sb.append(thread.getState());
76              sb.append("\n");
77  
78              for (int i = 0; i < elements.length; i++) {
79                  sb.append("\t");
80                  sb.append(elements[i]);
81                  sb.append("\n");
82              }
83  
84              sb.append("\n");
85          }
86  
87          System.out.println(sb);
88      }
89  
90  }