| GarbageCollectorAction.java |
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.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 }