01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * 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;
36: import javax.management.ObjectName;
37:
38: /**
39: * Client for mbeans.
40: */
41: public class MBeanClient {
42: private String _url;
43: private RemoteJMX _jmxProxy;
44:
45: /**
46: * Creates the MBeanClient.
47: */
48: public MBeanClient() {
49: }
50:
51: /**
52: * Creates the MBeanClient.
53: */
54: public MBeanClient(String url) {
55: _url = url;
56: }
57:
58: /**
59: * Sets the proxy
60: */
61: public void setProxy(RemoteJMX proxy) {
62: _jmxProxy = proxy;
63: }
64:
65: /**
66: * Returns the mbean info
67: */
68: public MBeanInfo getMBeanInfo(ObjectName objectName)
69: throws Exception {
70: return getProxy().getMBeanInfo(objectName.getCanonicalName());
71: }
72:
73: /**
74: * Gets an attribute.
75: */
76: public Object getAttribute(ObjectName objectName, String attrName)
77: throws Exception {
78: return getProxy().getAttribute(objectName.getCanonicalName(),
79: attrName);
80: }
81:
82: private RemoteJMX getProxy() {
83: if (_jmxProxy == null) {
84: try {
85: HessianProxyFactory proxy = new HessianProxyFactory();
86: proxy.getSerializerFactory().addFactory(
87: new JMXSerializerFactory());
88: _jmxProxy = (RemoteJMX) proxy.create(_url);
89: } catch (Exception e) {
90: throw new RuntimeException(e);
91: }
92: }
93:
94: return _jmxProxy;
95: }
96: }
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