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1
22 package org.jboss.ejb3.stateless;
23
24 import java.io.ObjectStreamException  ;
25 import java.io.Serializable ;
26 import java.lang.reflect.Constructor ;
27 import java.lang.reflect.InvocationTargetException ;
28
29 import javassist.util.proxy.MethodHandler;
30 import javassist.util.proxy.ProxyFactory;
31 import javassist.util.proxy.ProxyObject;
32
33
39 public class JavassistProxy implements Serializable
40 {
41 private static final long serialVersionUID = 1L;
42
43 private MethodHandler handler;
44 private Class interfaces[];
45
46
64 protected static void pokeInterfaces(JavassistProxy proxy, Class interfaces[]) {
65 proxy.interfaces = interfaces;
66 }
67
68 private Object readResolve() throws ObjectStreamException
69 {
70 System.err.println("JavassistProxy.readResolve");
71 try {
72 ProxyFactory proxyFactory = new ProxyFactory() {
73 protected ClassLoader getClassLoader()
74 {
75 return Thread.currentThread().getContextClassLoader();
76 }
77 };
78 proxyFactory.setInterfaces(interfaces);
79 proxyFactory.setSuperclass(JavassistProxy.class);
80 Class proxyClass = proxyFactory.createClass();
81 Constructor proxyConstructor = proxyClass.getConstructor((Class []) null);
82 JavassistProxy proxy = (JavassistProxy) proxyConstructor.newInstance((Object []) null);
83 proxy.setMethodHandler(this.handler);
84 proxy.interfaces = this.interfaces;
85 return proxy;
86 }
87 catch (NoSuchMethodException e)
88 {
89 throw new RuntimeException (e);
90 }
91 catch (InstantiationException e)
92 {
93 throw new RuntimeException (e);
94 }
95 catch (IllegalAccessException e)
96 {
97 throw new RuntimeException (e);
98 }
99 catch (InvocationTargetException e)
100 {
101 throw new RuntimeException (e.getTargetException());
102 }
103 }
104
105 protected void setInterfaces(Class interfaces[])
106 {
107 this.interfaces = interfaces;
109 }
110
111 protected void setMethodHandler(MethodHandler handler)
112 {
113 ((ProxyObject) this).setHandler(handler);
115 this.handler = handler;
116 }
117
118 private Object writeReplace() throws ObjectStreamException
119 {
120 System.err.println("JavassistProxy.writeReplace");
121 JavassistProxy replacement = new JavassistProxyReplacement();
122 replacement.handler = this.handler;
123 replacement.interfaces = this.interfaces;
124 return replacement;
125 }
126 }
127 |
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