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1
23 package com.sun.ejb.containers;
24
25 import java.lang.reflect.InvocationHandler  ;
26 import java.lang.reflect.InvocationTargetException ;
27 import java.lang.reflect.Proxy ;
28 import java.lang.reflect.Method ;
29
30 import javax.ejb.EJBException ;
31 import java.rmi.RemoteException ;
32
33 public final class InvocationHandlerUtil {
34
35 InvocationHandlerUtil() {}
36
37 static Object invokeJavaObjectMethod(InvocationHandler handler,
38 Method method, Object [] args)
39 throws EJBException {
40
41 Object returnValue = null;
42
43
50 switch( method.getName().charAt(0) ) {
51 case 'e' :
52 boolean result = false;
53 if (args[0] != null) {
54 Object other = Proxy.isProxyClass(args[0].getClass()) ?
55 Proxy.getInvocationHandler(args[0]) : args[0];
56 result = handler.equals(other);
57 }
58 returnValue = new Boolean (result);
59 break;
60 case 'h' :
61 returnValue = new Integer (handler.hashCode());
62 break;
63 case 't' :
64 returnValue = handler.toString();
65 break;
66 default :
67 throw new EJBException (method.getName());
68 }
69
70 return returnValue;
71 }
72
73 static boolean isDeclaredException(Throwable t,
74 Class [] declaredExceptions)
75 {
76 boolean declaredException = false;
77
78 for(int i = 0; i < declaredExceptions.length; i++) {
79 Class next = declaredExceptions[i];
80 if( next.isAssignableFrom(t.getClass()) ) {
81 declaredException = true;
82 break;
83 }
84 }
85
86 return declaredException;
87 }
88
89 static void throwLocalException(Throwable t,
90 Class [] declaredExceptions)
91 throws Throwable
92 {
93 Throwable toThrow = t;
94
95 if( (t instanceof java.lang.RuntimeException ) ||
96 (isDeclaredException(t, declaredExceptions)) ) {
97 toThrow = t;
98 } else {
99 toThrow = new EJBException ();
100 toThrow.initCause(t);
101 }
102
103 throw toThrow;
104
105 }
106
107 static void throwRemoteException(Throwable t,
108 Class [] declaredExceptions)
109 throws Throwable
110 {
111 Throwable toThrow = t;
112
113 if( (t instanceof java.lang.RuntimeException ) ||
114 (t instanceof java.rmi.RemoteException ) ||
115 (isDeclaredException(t, declaredExceptions)) ) {
116 toThrow = t;
117 } else {
118 toThrow = new RemoteException ("", t);
119 }
120
121 throw toThrow;
122 }
123 }
124 |
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