StandardMBeanSupport


1   /*
2    * @(#)StandardMBeanSupport.java    1.7 05/11/17
3    * 
4    * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
5    * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package com.sun.jmx.mbeanserver;
9   
10  import static com.sun.jmx.mbeanserver.Util.*;
11  import java.lang.annotation.Annotation  ;
12  import java.lang.reflect.Constructor  ;
13  import java.lang.reflect.GenericArrayType  ;
14  import java.lang.reflect.InvocationTargetException  ;
15  import java.lang.reflect.Method  ;
16  import java.lang.reflect.Type  ;
17  import java.util.Arrays  ;
18  import java.util.Collections  ;
19  import java.util.Iterator  ;
20  import java.util.List  ;
21  import java.util.Map  ;
22  import java.util.Set  ;
23  import java.util.WeakHashMap  ;
24  import javax.management.Attribute  ;
25  import javax.management.AttributeList  ;
26  import javax.management.AttributeNotFoundException  ;
27  import javax.management.Descriptor  ;
28  import javax.management.DynamicMBean  ;
29  import javax.management.ImmutableDescriptor  ;
30  import javax.management.InstanceAlreadyExistsException  ;
31  import javax.management.IntrospectionException  ;
32  import javax.management.InvalidAttributeValueException  ;
33  import javax.management.JMX  ;
34  import javax.management.MBeanAttributeInfo  ;
35  import javax.management.MBeanConstructorInfo  ;
36  import javax.management.MBeanException  ;
37  import javax.management.MBeanInfo  ;
38  import javax.management.MBeanNotificationInfo  ;
39  import javax.management.MBeanOperationInfo  ;
40  import javax.management.MBeanParameterInfo  ;
41  import javax.management.MBeanRegistration  ;
42  import javax.management.MBeanServer  ;
43  import javax.management.NotCompliantMBeanException  ;
44  import javax.management.NotificationBroadcaster  ;
45  import javax.management.NotificationBroadcasterSupport  ;
46  import javax.management.ObjectName  ;
47  import javax.management.ReflectionException  ;
48  import javax.management.openmbean.OpenMBeanAttributeInfoSupport  ;
49  import javax.management.openmbean.OpenMBeanOperationInfoSupport  ;
50  import javax.management.openmbean.OpenMBeanParameterInfo  ;
51  import javax.management.openmbean.OpenMBeanParameterInfoSupport  ;
52  import javax.management.openmbean.OpenType  ;
53  
54  /**
55   * Base class for Standard MBeans.
56   *
57   * @since 1.6
58   */
59  public class StandardMBeanSupport extends MBeanSupport<Method  > {
60  
61      /**
62         <p>Construct a Standard MBean that wraps the given resource using the
63         given Standard MBean interface.</p>
64  
65         @param resource the underlying resource for the new MBean.
66  
67         @param mbeanInterface the interface to be used to determine
68         the MBean's management interface.
69  
70         @param <T> a type parameter that allows the compiler to check
71         that {@code resource} implements {@code mbeanInterface},
72         provided that {@code mbeanInterface} is a class constant like
73         {@code SomeMBean.class}.
74  
75         @throws IllegalArgumentException if {@code resource} is null or
76         if it does not implement the class {@code mbeanInterface} or if
77         that class is not a valid Standard MBean interface.
78      */
79      public <T> StandardMBeanSupport(T resource, Class  <T> mbeanInterface)
80              throws NotCompliantMBeanException   {
81          super(resource, mbeanInterface);
82      }
83  
84      @Override  
85      MBeanIntrospector<Method  > getMBeanIntrospector() {
86      return StandardMBeanIntrospector.getInstance();
87      }
88  
89      @Override  
90      Object   getCookie() {
91      return null;
92      }
93      
94      @Override  
95      public void register(MBeanServer   mbs, ObjectName   name) {}
96      
97      @Override  
98      public void unregister() {}
99   
100     /* Standard MBeans that are NotificationBroadcasters can return a different
101      * MBeanNotificationInfo[] every time getMBeanInfo() is called, so we have
102      * to reconstruct this MBeanInfo if necessary.
103      */
104     @Override  
105     public MBeanInfo   getMBeanInfo() {
106         MBeanInfo   mbi = super.getMBeanInfo();
107         Class  <?> resourceClass = getResource().getClass();
108         if (StandardMBeanIntrospector.isDefinitelyImmutableInfo(resourceClass))
109             return mbi;
110         return new MBeanInfo  (mbi.getClassName(), mbi.getDescription(),
111                 mbi.getAttributes(), mbi.getConstructors(),
112                 mbi.getOperations(),
113                 MBeanIntrospector.findNotifications(getResource()),
114                 mbi.getDescriptor());
115     }
116 }
117
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