/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, 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.proxy.ejb;
import java.lang.reflect.Method;
import java.rmi.RemoteException;
import org.jboss.invocation.Invocation;
import org.jboss.invocation.InvocationContext;
import org.jboss.invocation.InvocationKey;
import org.jboss.invocation.InvocationType;
import org.jboss.proxy.ejb.handle.StatelessHandleImpl;
/**
* An EJB stateless session bean proxy class.
*
* @author <a href="mailto:marc.fleury@jboss.org">Marc Fleury</a>
* @version $Revision: 81030 $
*/
public class StatelessSessionInterceptor
extends GenericEJBInterceptor
{
/** Serial Version Identifier. @since 1.4 */
private static final long serialVersionUID = -8807189798153718350L;
/**
* No-argument constructor for externalization.
*/
public StatelessSessionInterceptor()
{}
// Public --------------------------------------------------------
/**
* InvocationHandler implementation.
*
* @throws Throwable Any exception or error thrown while processing.
*/
public Object invoke(Invocation invocation)
throws Throwable
{
InvocationContext ctx = invocation.getInvocationContext();
Method m = invocation.getMethod();
// Implement local methods
if (m.equals(TO_STRING))
{
return toString(ctx);
}
else if (m.equals(EQUALS))
{
Object[] args = invocation.getArguments();
String argsString = args[0] != null ? args[0].toString() : "";
String thisString = toString(ctx);
return new Boolean(thisString.equals(argsString));
}
else if (m.equals(HASH_CODE))
{
// We base the stateless hash on the hash of the proxy...
// MF XXX: it could be that we want to return the hash of the name?
return new Integer(this.hashCode());
}
// Implement local EJB calls
else if (m.equals(GET_HANDLE))
{
return new StatelessHandleImpl(
(String)ctx.getValue(InvocationKey.JNDI_NAME));
}
else if (m.equals(GET_PRIMARY_KEY))
{
throw new RemoteException("Call to getPrimaryKey not allowed on session bean");
}
else if (m.equals(GET_EJB_HOME))
{
return getEJBHome(invocation);
}
else if (m.equals(IS_IDENTICAL))
{
// All stateless beans are identical within a home,
// if the names are equal we are equal
Object[] args = invocation.getArguments();
String argsString = args[0].toString();
String thisString = toString(ctx);
return new Boolean(thisString.equals(argsString));
}
// If not taken care of, go on and call the container
else
{
invocation.setType(InvocationType.REMOTE);
return getNext().invoke(invocation);
}
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
private String toString(InvocationContext ctx)
{
return ctx.getValue(InvocationKey.JNDI_NAME) + ":Stateless";
}
}