/*
* 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 javax.ejb.Handle;
import org.jboss.invocation.Invocation;
import org.jboss.invocation.InvocationContext;
import org.jboss.invocation.InvocationKey;
import org.jboss.invocation.InvocationType;
import org.jboss.invocation.Invoker;
import org.jboss.proxy.ejb.handle.StatefulHandleImpl;
/**
*
* @author <a href="mailto:marc.fleury@jboss.org">Marc Fleury</a>
* @author <a href="mailto:galder.zamarreno@jboss.com">Galder Zamarreno</a>
* @version $Revision: 84397 $
*/
public class StatefulSessionInterceptor
extends GenericEJBInterceptor
{
/** Serial Version Identifier. @since 1.5 */
private static final long serialVersionUID = -4333233488946091285L;
/**
* No-argument constructor for externalization.
*/
public StatefulSessionInterceptor()
{
}
// 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))
{
return new Integer(ctx.getCacheId().hashCode());
}
// Implement local EJB calls
else if (m.equals(GET_HANDLE))
{
int objectName = ((Integer) ctx.getObjectName()).intValue();
String jndiName = (String) ctx.getValue(InvocationKey.JNDI_NAME);
Invoker invoker = ctx.getInvoker();
Object id = ctx.getCacheId();
return createHandle(objectName, jndiName, invoker, id, ctx);
}
else if (m.equals(GET_EJB_HOME))
{
return getEJBHome(invocation);
}
else if (m.equals(GET_PRIMARY_KEY))
{
throw new RemoteException("Call to getPrimaryKey not allowed on session bean");
}
else if (m.equals(IS_IDENTICAL))
{
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
{
// It is a remote invocation
invocation.setType(InvocationType.REMOTE);
// On this entry in cache
invocation.setId(ctx.getCacheId());
return getNext().invoke(invocation);
}
}
protected Handle createHandle(int objectName, String jndiName, Invoker invoker,
Object id, InvocationContext ctx)
{
return new StatefulHandleImpl(
objectName,
jndiName,
invoker,
ctx.getInvokerProxyBinding(),
id,
ctx.getValue("InvokerID"));
}
private String toString(InvocationContext ctx)
{
return ctx.getValue(InvocationKey.JNDI_NAME) + ":" +
ctx.getCacheId().toString();
}
}