MBeanServerBuilderImpl


1   /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10  * the License, or (at your option) any later version.
11  *
12  * This software is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this software; if not, write to the Free
19  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21  */
22  package org.jboss.system.server.jmx;
23  
24  import javax.management.MBeanServerBuilder  ;
25  import javax.management.MBeanServerDelegate  ;
26  import javax.management.MBeanServer  ;
27  
28  /**
29   * An @link{MBeanServerBuilder} that creates a LazyMBeanServer instance to allow
30   * the jboss MBeanServerImpl to be created when the ServerImpl is loaded and
31   * the jboss jmx classes are available. It can be used at startup using
32   * -Djavax.management.builder.initial=org.jboss.system.server.jmx.MBeanServerBuilderImpl
33   * This is needed when enabling the jdk5 jconsole remote adaptor since this
34   * adaptor initializes the platform MBeanServer before the jboss ServerImpl
35   * is loaded.
36   * 
37   * @author Scott.Stark@jboss.org
38   * @version $Revision: 37459 $
39   */
40  public class MBeanServerBuilderImpl
41     extends MBeanServerBuilder  
42  {
43     /**
44      * 
45      * @return @{link MBeanServerDelegate}
46      */ 
47     public MBeanServerDelegate   newMBeanServerDelegate()
48     {
49        return new MBeanServerDelegate  ();
50     }
51  
52     /**
53      * Creates a @{link LazyMBeanServer} as the MBeanServer. If the outer
54      * parameter is null, the outer passed to the LazyMBeanServer is the
55      * platform mbean server as obtained from
56      * super.newMBeanServer(defaultDomain, outer, delegate).
57      * 
58      * @param defaultDomain
59      * @param outer
60      * @param delegate
61      * @return LazyMBeanServer
62      */ 
63     public MBeanServer   newMBeanServer(String   defaultDomain, MBeanServer   outer,
64        MBeanServerDelegate   delegate)
65     {
66        if( outer == null )
67           outer = super.newMBeanServer(defaultDomain, outer, delegate);
68        return new LazyMBeanServer(defaultDomain, outer, delegate);
69     }
70  }
71
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