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