1 /**
2 * This file Copyright (c) 2008-2011 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.stats;
35
36 import info.magnolia.cms.util.MBeanUtil;
37
38 import org.slf4j.Logger;
39 import org.slf4j.LoggerFactory;
40
41
42 /**
43 * Collects and provides information about number of JCR sessions used by this instance of Magnolia.
44 *
45 * @author philipp
46 * @version $Id: JCRStats.java 41137 2011-01-06 18:19:25Z gjoseph $
47 *
48 */
49 public class JCRStats implements JCRStatsMBean {
50 /**
51 * Logger.
52 */
53 private static Logger log = LoggerFactory.getLogger(JCRStats.class);
54
55 private static JCRStats instance = new JCRStats();
56
57 private volatile int sessionCount;
58
59 public JCRStats() {
60 MBeanUtil.registerMBean("JCRStats", this);
61 }
62
63 public int getSessionCount() {
64 return sessionCount;
65 }
66
67 public synchronized void incSessionCount(){sessionCount++;}
68
69 public synchronized void decSessionCount(){sessionCount--;}
70
71 /**
72 * @return the instance
73 */
74 public static JCRStats getInstance() {
75 return instance;
76 }
77
78 }