| GarbageCollectorAction.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or modify it under
5 * the terms of the GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 2.1 of the License, or (at your option)
7 * any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 * details.
13 */
14
15 package com.liferay.portal.events;
16
17 import com.liferay.portal.kernel.events.SessionAction;
18 import com.liferay.portal.kernel.log.Log;
19 import com.liferay.portal.kernel.log.LogFactoryUtil;
20
21 import java.text.NumberFormat;
22
23 import javax.servlet.http.HttpSession;
24
25 /**
26 * <a href="GarbageCollectorAction.java.html"><b><i>View Source</i></b></a>
27 *
28 * @author Brian Wing Shun Chan
29 */
30 public class GarbageCollectorAction extends SessionAction {
31
32 public void run(HttpSession session) {
33 Runtime runtime = Runtime.getRuntime();
34
35 NumberFormat nf = NumberFormat.getInstance();
36
37 if (_log.isDebugEnabled()) {
38 _log.debug(
39 "Before:\t\t" +
40 nf.format(runtime.freeMemory()) + "\t" +
41 nf.format(runtime.totalMemory()) + "\t" +
42 nf.format(runtime.maxMemory()));
43 }
44
45 System.gc();
46
47 if (_log.isDebugEnabled()) {
48 _log.debug(
49 "After:\t\t" +
50 nf.format(runtime.freeMemory()) + "\t" +
51 nf.format(runtime.totalMemory()) + "\t" +
52 nf.format(runtime.maxMemory()));
53 }
54 }
55
56 private static Log _log = LogFactoryUtil.getLog(
57 GarbageCollectorAction.class);
58
59 }