/* | |
* Copyright 2001-2009 OFFIS, Tammo Freese | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package org.easymock.internal; | |
import java.io.IOException; | |
import java.io.Serializable; | |
import java.lang.reflect.InvocationHandler; | |
import java.lang.reflect.Method; | |
import java.lang.reflect.Proxy; | |
public class ObjectMethodsFilter implements InvocationHandler, Serializable { | |
private static final long serialVersionUID = -2120581954279966998L; | |
private transient Method equalsMethod; | |
private transient Method hashCodeMethod; | |
private transient Method toStringMethod; | |
private final MockInvocationHandler delegate; | |
private final String name; | |
public ObjectMethodsFilter(Class<?> toMock, MockInvocationHandler delegate, | |
String name) { | |
if (name != null && !Invocation.isJavaIdentifier(name)) { | |
throw new IllegalArgumentException(String.format("'%s' is not a valid Java identifier.", name)); | |
} | |
try { | |
if (toMock.isInterface()) { | |
toMock = Object.class; | |
} | |
equalsMethod = toMock.getMethod("equals", | |
new Class[] { Object.class }); | |
hashCodeMethod = toMock.getMethod("hashCode", (Class[]) null); | |
toStringMethod = toMock.getMethod("toString", (Class[]) null); | |
} catch (NoSuchMethodException e) { | |
// ///CLOVER:OFF | |
throw new RuntimeException("An Object method could not be found!"); | |
// ///CLOVER:ON | |
} | |
this.delegate = delegate; | |
this.name = name; | |
} | |
public final Object invoke(Object proxy, Method method, Object[] args) | |
throws Throwable { | |
if (equalsMethod.equals(method)) { | |
return Boolean.valueOf(proxy == args[0]); | |
} | |
if (hashCodeMethod.equals(method)) { | |
return Integer.valueOf(System.identityHashCode(proxy)); | |
} | |
if (toStringMethod.equals(method)) { | |
return mockToString(proxy); | |
} | |
return delegate.invoke(proxy, method, args); | |
} | |
private String mockToString(Object proxy) { | |
return (name != null) ? name : "EasyMock for " + mockType(proxy); | |
} | |
private String mockType(Object proxy) { | |
if (Proxy.isProxyClass(proxy.getClass())) | |
return proxy.getClass().getInterfaces()[0].toString(); | |
else | |
return proxy.getClass().getSuperclass().toString(); | |
} | |
public MockInvocationHandler getDelegate() { | |
return delegate; | |
} | |
private void readObject(java.io.ObjectInputStream stream) throws IOException, ClassNotFoundException { | |
stream.defaultReadObject(); | |
try { | |
toStringMethod = ((MethodSerializationWrapper) stream.readObject()).getMethod(); | |
equalsMethod = ((MethodSerializationWrapper) stream.readObject()).getMethod(); | |
hashCodeMethod = ((MethodSerializationWrapper) stream.readObject()).getMethod(); | |
} catch (NoSuchMethodException e) { | |
// ///CLOVER:OFF | |
throw new IOException(e.toString()); | |
// ///CLOVER:ON | |
} | |
} | |
private void writeObject(java.io.ObjectOutputStream stream) throws IOException { | |
stream.defaultWriteObject(); | |
stream.writeObject(new MethodSerializationWrapper(toStringMethod)); | |
stream.writeObject(new MethodSerializationWrapper(equalsMethod)); | |
stream.writeObject(new MethodSerializationWrapper(hashCodeMethod)); | |
} | |
} |