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


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.hessian.client.HessianProxyFactory;
33 import com.caucho.hessian.jmx.JMXSerializerFactory;
34
35 import javax.management.MBeanInfo JavaDoc;
36 import javax.management.ObjectName JavaDoc;
37
38 /**
39  * Client for mbeans.
40  */
41 public class MBeanClient {
42   private String JavaDoc _url;
43   private RemoteJMX _jmxProxy;
44   
45   /**
46    * Creates the MBeanClient.
47    */
48   public MBeanClient()
49   {
50   }
51   
52   /**
53    * Creates the MBeanClient.
54    */
55   public MBeanClient(String JavaDoc url)
56   {
57     _url = url;
58   }
59
60   /**
61    * Sets the proxy
62    */
63   public void setProxy(RemoteJMX proxy)
64   {
65     _jmxProxy = proxy;
66   }
67
68   /**
69    * Returns the mbean info
70    */
71   public MBeanInfo JavaDoc getMBeanInfo(ObjectName JavaDoc objectName)
72     throws Exception JavaDoc
73   {
74     return getProxy().getMBeanInfo(objectName.getCanonicalName());
75   }
76
77   /**
78    * Gets an attribute.
79    */
80   public Object JavaDoc getAttribute(ObjectName JavaDoc objectName, String JavaDoc attrName)
81     throws Exception JavaDoc
82   {
83     return getProxy().getAttribute(objectName.getCanonicalName(), attrName);
84   }
85
86   private RemoteJMX getProxy()
87   {
88     if (_jmxProxy == null) {
89       try {
90     HessianProxyFactory proxy = new HessianProxyFactory();
91     proxy.getSerializerFactory().addFactory(new JMXSerializerFactory());
92     _jmxProxy = (RemoteJMX) proxy.create(_url);
93       } catch (Exception JavaDoc e) {
94     throw new RuntimeException JavaDoc(e);
95       }
96     }
97
98     return _jmxProxy;
99   }
100 }
101
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