| GarbageCollectorAction.java |
1 /**
2 * Copyright (c) 2000-2008 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.events.SessionAction;
26
27 import java.text.NumberFormat;
28
29 import javax.servlet.http.HttpSession;
30
31 import org.apache.commons.logging.Log;
32 import org.apache.commons.logging.LogFactory;
33
34 /**
35 * <a href="GarbageCollectorAction.java.html"><b><i>View Source</i></b></a>
36 *
37 * @author Brian Wing Shun Chan
38 *
39 */
40 public class GarbageCollectorAction extends SessionAction {
41
42 public void run(HttpSession session) {
43 Runtime runtime = Runtime.getRuntime();
44
45 NumberFormat nf = NumberFormat.getInstance();
46
47 if (_log.isDebugEnabled()) {
48 _log.debug(
49 "Before:\t\t" +
50 nf.format(runtime.freeMemory()) + "\t" +
51 nf.format(runtime.totalMemory()) + "\t" +
52 nf.format(runtime.maxMemory()));
53 }
54
55 System.gc();
56
57 if (_log.isDebugEnabled()) {
58 _log.debug(
59 "After:\t\t" +
60 nf.format(runtime.freeMemory()) + "\t" +
61 nf.format(runtime.totalMemory()) + "\t" +
62 nf.format(runtime.maxMemory()));
63 }
64 }
65
66 private static Log _log = LogFactory.getLog(GarbageCollectorAction.class);
67
68 }