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1
9 package org.jboss.portal.common.junit;
10
11 import java.lang.reflect.Proxy  ;
12 import java.lang.reflect.InvocationHandler ;
13 import java.lang.reflect.Method ;
14 import java.lang.reflect.InvocationTargetException ;
15
16
22 public class MockFactory
23 {
24
25 public static Object wrap(ClassLoader loader, Class [] itfs, Object implementation) throws IllegalArgumentException
26 {
27 if (implementation == null)
28 {
29 throw new IllegalArgumentException ("Implementation cannot be null");
30 }
31 InvocationHandler handler = new MockHandler(implementation);
32 Object proxy = Proxy.newProxyInstance(loader, itfs, handler);
33 return proxy;
34 }
35
36 private static class MockHandler implements InvocationHandler
37 {
38
39 private final Object target;
40
41 public MockHandler(Object target)
42 {
43 this.target = target;
44 }
45
46 public Object invoke(Object proxy, Method proxyMethod, Object [] args) throws Throwable
47 {
48 Method targetMethod = target.getClass().getMethod(proxyMethod.getName(), proxyMethod.getParameterTypes());
50
51 if (targetMethod == null)
53 {
54 targetMethod = target.getClass().getMethod("invoke", new Class []{Object [].class});
56
57 if (targetMethod != null)
59 {
60 args = new Object []{args};
61 }
62 }
63
64 if (targetMethod == null)
66 {
67 throw new UnsupportedOperationException ("Method " + proxyMethod + " was not found");
68 }
69
70 try
72 {
73 return targetMethod.invoke(target, args);
74 }
75 catch (Exception e)
76 {
77 if (e instanceof InvocationTargetException )
78 {
79 InvocationTargetException ite = (InvocationTargetException )e;
80 Throwable cause = ite.getCause();
81 throw cause;
82 }
83 else
84 {
85 UnsupportedOperationException ex = new UnsupportedOperationException ("Method " + proxyMethod + " threw an unexpected exception");
86 ex.initCause(e);
87 throw ex;
88 }
89 }
90 }
91 }
92 }
93 |
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