01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.portal.events;
22:
23: import com.liferay.portal.kernel.events.ActionException;
24: import com.liferay.portal.kernel.events.SessionAction;
25:
26: import java.text.NumberFormat;
27:
28: import javax.servlet.http.HttpSession;
29:
30: import org.apache.commons.logging.Log;
31: import org.apache.commons.logging.LogFactory;
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 ses) throws ActionException {
42: Runtime runtime = Runtime.getRuntime();
43:
44: NumberFormat nf = NumberFormat.getInstance();
45:
46: if (_log.isDebugEnabled()) {
47: _log.debug("Before:\t\t" + nf.format(runtime.freeMemory())
48: + "\t" + nf.format(runtime.totalMemory()) + "\t"
49: + nf.format(runtime.maxMemory()));
50: }
51:
52: System.gc();
53:
54: if (_log.isDebugEnabled()) {
55: _log.debug("After:\t\t" + nf.format(runtime.freeMemory())
56: + "\t" + nf.format(runtime.totalMemory()) + "\t"
57: + nf.format(runtime.maxMemory()));
58: }
59: }
60:
61: private static Log _log = LogFactory
62: .getLog(GarbageCollectorAction.class);
63:
64: }
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