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Java > Open Source Codes > com > caucho > jmx > remote > ReadJMXService


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.jmx.remote;
31
32 import com.caucho.services.server.GenericService;
33
34 import javax.management.JMException JavaDoc;
35 import javax.management.MBeanInfo JavaDoc;
36 import javax.management.MBeanServerConnection JavaDoc;
37 import javax.management.ObjectName JavaDoc;
38 import java.io.IOException JavaDoc;
39
40 /**
41  * JMX service.
42  */
43 public class ReadJMXService extends GenericService implements RemoteJMX {
44   private MBeanServerConnection JavaDoc _server;
45
46   /**
47    * Sets the mbean server.
48    */
49   public void setMBeanServer(MBeanServerConnection JavaDoc server)
50   {
51     _server = server;
52   }
53
54   /**
55    * Initialize the server.
56    */
57   public void init()
58   {
59     if (_server == null)
60       throw new NullPointerException JavaDoc("mbean-server is required");
61   }
62   
63   /**
64    * Returns the mbean info
65    */
66   public MBeanInfo JavaDoc getMBeanInfo(String JavaDoc objectName)
67     throws JMException JavaDoc, IOException JavaDoc
68   {
69     return _server.getMBeanInfo(new ObjectName JavaDoc(objectName));
70   }
71   
72   /**
73    * Returns an attribute.
74    */
75   public Object JavaDoc getAttribute(String JavaDoc objectName, String JavaDoc attributeName)
76     throws JMException JavaDoc, IOException JavaDoc
77   {
78     return _server.getAttribute(new ObjectName JavaDoc(objectName), attributeName);
79   }
80 }
81
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