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1
5 package org.easymock.internal;
6
7 import java.lang.reflect.InvocationHandler  ;
8 import java.lang.reflect.Method ;
9
10 public class ObjectMethodsFilter implements InvocationHandler {
11 private Method equalsMethod;
12
13 private Method hashCodeMethod;
14
15 private Method toStringMethod;
16
17 private InvocationHandler delegate;
18
19 public ObjectMethodsFilter(InvocationHandler delegate) {
20 try {
21 equalsMethod = Object .class.getMethod("equals",
22 new Class [] { Object .class });
23 hashCodeMethod = Object .class.getMethod("hashCode", (Class []) null);
24 toStringMethod = Object .class.getMethod("toString", (Class []) null);
25 } catch (NoSuchMethodException e) {
26 throw new RuntimeException ("An Object method could not be found!");
28 }
30 this.delegate = delegate;
31 }
32
33 public final Object invoke(Object proxy, Method method, Object [] args)
34 throws Throwable {
35 if (equalsMethod.equals(method)) {
36 return proxy == args[0] ? Boolean.TRUE : Boolean.FALSE;
37 }
38 if (hashCodeMethod.equals(method)) {
39 return new Integer (System.identityHashCode(proxy));
40 }
41 if (toStringMethod.equals(method)) {
42 return mockToString(proxy);
43 }
44 return delegate.invoke(proxy, method, args);
45 }
46
47 private String mockToString(Object proxy) {
48 return "EasyMock for " + mockedInterface(proxy);
49 }
50
51 private String mockedInterface(Object proxy) {
52 Class [] interfaces = proxy.getClass().getInterfaces();
53 return interfaces.length > 0 ? interfaces[0].toString() : proxy
54 .getClass().getSuperclass().toString();
55 }
56 } |
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