/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.aspects.remoting;

import org.jboss.aop.joinpoint.MethodInvocation;
import org.jboss.aop.proxy.ClassProxyFactory;
import org.jboss.aop.util.reference.MethodPersistentReference;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
/**
 * Checks to see if this object is local in VM
 *
 * @author <a href="mailto:bill@jboss.org">Bill Burke</a>
 * @version $Revision: 57186 $
 */
public class ForwardingInterceptor implements org.jboss.aop.advice.Interceptor, ClusterConstants
{
   private final Object obj;
   public ForwardingInterceptor(Object obj)
   {
      this.obj = obj;
   }

   public String getName() { return "ForwardingInterceptor"; }

   public Object invoke(org.jboss.aop.joinpoint.Invocation invocation) throws Throwable
   {
      if (invocation instanceof MethodInvocation)
      {
         // For non-advised methods, we can only do public method invocations
         org.jboss.aop.joinpoint.MethodInvocation methodInvocation = (org.jboss.aop.joinpoint.MethodInvocation)invocation;
         long methodHash = methodInvocation.getMethodHash();
         HashMap methodMap = ClassProxyFactory.getMethodMap(obj.getClass());
         MethodPersistentReference ref = (MethodPersistentReference)methodMap.get(new Long(methodHash));
         Method method = (Method)ref.get();
         Object[] args = methodInvocation.getArguments();
         try
         {
            return method.invoke(obj, args);
         }
         catch (InvocationTargetException ex)
         {
            throw ex.getTargetException();
         }
      }
      else
      {
         throw new RuntimeException("field invocations not implemented");
      }
   }
}