1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   *
12   *
13   */
14  
15  package com.liferay.portal.kernel.util;
16  
17  import java.io.IOException;
18  
19  /**
20   * <a href="HeapUtil.java.html"><b><i>View Source</i></b></a>
21   *
22   * @author Shuyang Zhou
23   */
24  public class HeapUtil {
25  
26      public static void heapDump(boolean live, boolean binary, String file) {
27          int processId = ProcessUtil.getProcessId();
28  
29          StringBundler sb = new StringBundler(7);
30  
31          sb.append("jmap -dump:");
32  
33          if (live) {
34              sb.append("live,");
35          }
36  
37          if (binary) {
38              sb.append("format=b,");
39          }
40  
41          sb.append("file=");
42          sb.append(file);
43          sb.append(StringPool.SPACE);
44          sb.append(processId);
45  
46          try {
47              Runtime runtime = Runtime.getRuntime();
48  
49              runtime.exec(sb.toString());
50          }
51          catch (IOException ioe) {
52              throw new RuntimeException("Unable to perform heap dump", ioe);
53          }
54      }
55  
56  }