/**
*
* Copyright 2003-2004 The Apache Software Foundation
*
* 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.apache.geronimo.remoting.transport.async;
import java.io.Serializable;
import java.lang.reflect.Method;
import org.apache.geronimo.core.service.Interceptor;
import org.apache.geronimo.core.service.Invocation;
import org.apache.geronimo.core.service.InvocationResult;
import org.apache.geronimo.core.service.SimpleInvocationResult;
import org.apache.geronimo.proxy.ProxyInvocation;
/**
* @version $Revision: 1.5 $ $Date: 2004/03/21 22:24:39 $
*/
public class IdentityInterceptor implements Interceptor, Serializable {
private static final Method EQUALS_METHOD;
private static final Method HASHCODE_METHOD;
static {
try {
EQUALS_METHOD = Object.class.getMethod("equals", new Class[] {Object.class});
HASHCODE_METHOD = Object.class.getMethod("hashCode", null);
} catch (NoSuchMethodException e) {
throw new ExceptionInInitializerError(e);
}
}
private RemoteRef ref;
private Interceptor next;
/**
* @param ref
*/
public IdentityInterceptor(Interceptor next, RemoteRef ref) {
this.next = next;
this.ref = ref;
}
public InvocationResult invoke(Invocation invocation) throws Throwable {
Method method = ProxyInvocation.getMethod(invocation);
if( method.equals(EQUALS_METHOD) ) {
Object proxy = ProxyInvocation.getProxy(invocation);
Object[] args = ProxyInvocation.getArguments(invocation);
return new SimpleInvocationResult( true, proxy == args[0] ? Boolean.TRUE : Boolean.FALSE);
} else if( method.equals(HASHCODE_METHOD) ) {
return new SimpleInvocationResult( true, new Integer(ref.hashCode()) );
}
return next.invoke(invocation);
}
}