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Java > Open Source Codes > org > jboss > injection > DependsMethodInjector


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.injection;
23
24 import java.lang.reflect.InvocationTargetException JavaDoc;
25 import java.lang.reflect.Method JavaDoc;
26 import javax.management.MBeanServer JavaDoc;
27 import javax.management.MBeanServerFactory JavaDoc;
28 import javax.management.ObjectName JavaDoc;
29 import org.jboss.ejb3.BeanContext;
30 import org.jboss.mx.util.MBeanProxyExt;
31
32 /**
33  * @author <a HREF="mailto:kabir.khan@jboss.org">Kabir Khan</a>
34  * @version $Revision: 46510 $
35  */

36 public class DependsMethodInjector implements Injector
37 {
38    Method JavaDoc method;
39    ObjectName JavaDoc on;
40
41    public DependsMethodInjector(Method JavaDoc method, ObjectName JavaDoc on)
42    {
43       this.method = method;
44       this.on = on;
45       method.setAccessible(true);
46    }
47
48    public void inject(BeanContext ctx)
49    {
50       Object JavaDoc instance = ctx.getInstance();
51       inject(instance);
52    }
53
54    public void inject(Object JavaDoc instance)
55    {
56       Class JavaDoc clazz = method.getParameterTypes()[0];
57       Object JavaDoc value = null;
58
59       if (clazz == ObjectName JavaDoc.class)
60       {
61          value = on;
62       }
63       else
64       {
65          MBeanServer JavaDoc server = (MBeanServer JavaDoc) MBeanServerFactory.findMBeanServer(null).get(0);
66          value = MBeanProxyExt.create(clazz, on, server);
67       }
68
69       try
70       {
71          method.invoke(instance, value);
72       }
73       catch (InvocationTargetException JavaDoc e)
74       {
75          throw new RuntimeException JavaDoc(e);
76       }
77       catch (IllegalAccessException JavaDoc e)
78       {
79          throw new RuntimeException JavaDoc(e);
80       }
81    }
82
83    public Class JavaDoc getInjectionClass()
84    {
85       return method.getParameterTypes()[0];
86    }
87 }
88
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