/*
* 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 in the distribution for a full listing
* of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006,
* @author JBoss Inc.
*/
/*
* Copyright (C) 2002,
*
* Arjuna Technologies Limited,
* Newcastle upon Tyne,
* Tyne and Wear,
* UK.
*
* $Id: ParticipantWrapper.java,v 1.4 2005/05/19 12:13:33 nmcl Exp $
*/
package com.arjuna.mwlabs.wscf.model.as.coordinator.arjunacore;
import com.arjuna.ats.arjuna.state.*;
import com.arjuna.mw.wscf.model.as.coordinator.*;
import com.arjuna.mw.wsas.activity.Outcome;
import com.arjuna.mw.wsas.exceptions.*;
import java.util.Hashtable;
/**
* @author Mark Little (mark.little@arjuna.com)
* @version $Id: ParticipantWrapper.java,v 1.4 2005/05/19 12:13:33 nmcl Exp $
*/
public class ParticipantWrapper implements Participant
{
/**
* Constructor.
*
* @param theResource is the proxy that allows us to call out to the
* object.
*/
public ParticipantWrapper (Participant theResource)
{
_resourceHandle = theResource;
_responses = new Hashtable();
}
/**
* Process the message from the coordinator and return a response, which
* may be null - validity is down to the specific coordinator.
*
* @param Message notification The message to be processed.
*
* @exception WrongStateException Thrown if the participant is not in a
* state which is valid given the input message.
* @exception ProtocolViolationException Thrown if the participant has
* violated the coordination protocol.
* @exception SystemException Thrown if any other error occurs.
*
* @return the Outcome message representing the result of dealing with
* the notification. Null may be a valid response.
*/
public Outcome processMessage (Message notification) throws WrongStateException, ProtocolViolationException, SystemException
{
Outcome out = (Outcome) _responses.get(notification);
if (out == null)
out = _resourceHandle.processMessage(notification);
return out;
}
/**
* @exception SystemException Thrown if any error occurs.
*
* @return the unique identity for this participant.
*/
public String identity () throws SystemException
{
return _resourceHandle.identity();
}
/*
* These methods are required so that the coordinator can serialise and
* de-serialise information about the inferior during completion and
* recovery.
*/
/**
* Pack the state of the participant into the object buffer.
*
* @return <code>true</code> if successful, <code>false</code> otherwise.
*/
public boolean packState (OutputObjectState os)
{
return _resourceHandle.packState(os);
}
/**
* Unpack the state of the participant from the object buffer.
*
* @return <code>true</code> if successful, <code>false</code> otherwise.
*/
public boolean unpackState (InputObjectState os)
{
return _resourceHandle.unpackState(os);
}
public final void setResponse (Message notification, Outcome response)
{
_responses.put(notification, response);
}
private Participant _resourceHandle;
private Hashtable _responses;
}