1 /**
2 * This file Copyright (c) 2008-2010 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.cms.util;
35
36 import info.magnolia.cms.core.Path;
37
38 import java.util.ArrayList;
39
40 import javax.management.InstanceAlreadyExistsException;
41 import javax.management.MBeanServer;
42 import javax.management.MBeanServerFactory;
43 import javax.management.ObjectName;
44
45 import org.slf4j.Logger;
46 import org.slf4j.LoggerFactory;
47
48
49 /**
50 * @author philipp
51 * @version $Id: MBeanUtil.java 32667 2010-03-13 00:37:06Z gjoseph $
52 *
53 */
54 public class MBeanUtil {
55
56 /**
57 * Logger.
58 */
59 private static Logger log = LoggerFactory.getLogger(MBeanUtil.class);
60
61 public static void registerMBean(String name, Object mbean) {
62 String appName = Path.getAppRootDir().getName();
63 final String id = "Magnolia:type=" + name + ",domain=" + appName;
64 try {
65 final ObjectName mbeanName = new ObjectName(id);
66 final MBeanServer mbeanServer = getMBeanServer();
67 if (!mbeanServer.isRegistered(mbeanName)) {
68 mbeanServer.registerMBean(mbean, mbeanName);
69 }
70 }
71 catch (InstanceAlreadyExistsException e) {
72 log.info("MBean '{}' already exists", id);
73 }
74 catch (Throwable t) {
75 log.error("Could not register JMX MBean '" + id + "'", t);
76 }
77 }
78
79 public static MBeanServer getMBeanServer() {
80 final ArrayList list = MBeanServerFactory.findMBeanServer(null);
81 final MBeanServer mbeanServer;
82 if (list != null && list.size() > 0) {
83 mbeanServer = (MBeanServer) list.get(0);
84 } else {
85 mbeanServer = MBeanServerFactory.createMBeanServer();
86 }
87 return mbeanServer;
88 }
89 }