/*
* 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: CoordinatorManagerImple.java,v 1.3 2005/05/19 12:13:32 nmcl Exp $
*/
package com.arjuna.mwlabs.wscf.model.as;
import com.arjuna.mw.wscf.common.*;
import com.arjuna.mw.wscf.model.as.coordinator.*;
import com.arjuna.mwlabs.wsas.activity.ActivityImple;
import com.arjuna.mwlabs.wsas.UserActivityImple;
import com.arjuna.mw.wsas.UserActivityFactory;
import com.arjuna.mw.wsas.activity.*;
import com.arjuna.mw.wscf.model.as.CoordinatorManager;
import com.arjuna.mw.wscf.model.as.coordinator.CoordinatorManagerService;
import com.arjuna.mw.wscf.exceptions.*;
import com.arjuna.mw.wsas.exceptions.WrongStateException;
import com.arjuna.mw.wsas.exceptions.SystemException;
import com.arjuna.mw.wsas.exceptions.NoActivityException;
import com.arjuna.mw.wsas.exceptions.HLSError;
/**
* The coordination manager implementation. This provides users with the
* ability to enroll participants with coordinators and to remove them (where
* supported by the protocol definition.)
*
* @author Mark Little (mark.little@arjuna.com)
* @version $Id: CoordinatorManagerImple.java,v 1.3 2005/05/19 12:13:32 nmcl Exp $
* @since 1.0.
*/
public class CoordinatorManagerImple implements CoordinatorManager
{
public CoordinatorManagerImple (Object type)
{
try
{
if (type instanceof String)
{
Class c = Class.forName((String) type);
_theCoordinatorService = (CoordinatorManagerService) c.newInstance();
}
else
_theCoordinatorService = (CoordinatorManagerService) type;
}
catch (Exception ex)
{
throw new HLSError(ex.toString());
}
}
/**
* Enrol the specified participant with the coordinator associated with
* the current thread. If the coordinator supports a priority ordering
* of participants, then that ordering can also be specified. Any
* qualifiers that are to be associated with the participant are also
* provided
*
* @param Participant act The participant.
* @param int priority The priority to associate with the participant in
* the coordinator's list.
* @param Qualifier[] quals Any qualifiers to be associated with the
* participant.
*
* @exception NoActivityException Thrown if there is no activity associated
* with the current thread.
* @exception WrongStateException Thrown if the coordinator is not in a
* state that allows participants to be enrolled.
* @exception InvalidParticipantException Thrown if the participant is invalid.
* @exception SystemException Thrown if any other error occurs.
*/
public void addParticipant (Participant act, int priority, Qualifier[] quals) throws NoActivityException, WrongStateException, DuplicateParticipantException, InvalidParticipantException, SystemException
{
if (current() == null)
throw new NoActivityException();
_theCoordinatorService.addParticipant(act, priority, quals);
}
/**
* Remove the specified participant from the coordinator associated with
* the current thread.
*
* @param Participant act The participant to remove.
*
* @exception NoActivityException Thrown if there is no activity associated
* with the current thread.
* @exception WrongStateException Thrown if the coordinator is not in a
* state that allows participants to be removed.
* @exception InvalidParticipantException Thrown if the participant is invalid.
* @exception SystemException Thrown if any other error occurs.
*/
public void removeParticipant (Participant act) throws NoActivityException, InvalidParticipantException, WrongStateException, SystemException
{
if (current() == null)
throw new NoActivityException();
_theCoordinatorService.removeParticipant(act);
}
/**
* Some coordination protocol messages may have asynchronous responses
* or it may be possible for participants to autonomously generate
* responses to messages that have not yet been producted by the
* coordinator. As such, this method allows a response from a participant
* to be passed to the coordinator. In order to ensure that the protocol
* remains valid, it is necessary for the participant to specify what
* message produced the response: if the response was autonomously
* generated by the participant on the assumption it would receive this
* message from the coordinator and the coordinator subsequently decides
* not to produce such a message, then the action taken by the participant
* is invalid and hence so is the response.
*
* @param String id the unique participant identification.
* @param Message notification the message the participant got/assumed
* when producing the response.
* @param Outcome response the actual response.
* @param Qualifier[] quals any qualifiers associated with the response.
*
* @exception InvalidParticipantException Thrown if the coordinator has no
* knowledge of the participant.
* @exception WrongStateException Thrown if the coordinator is in a state
* that does not allow it to accept responses at all or this specific
* type of response.
* @exception SystemException Thrown if any other error occurs.
*/
public void setResponse (String id, Message notification, Outcome response, Qualifier[] quals) throws InvalidParticipantException, NoCoordinatorException, WrongStateException, SystemException
{
if (current() == null)
throw new NoCoordinatorException();
_theCoordinatorService.setResponse(id, notification, response, quals);
}
private final ActivityImple current ()
{
UserActivityImple imple = (UserActivityImple) UserActivityFactory.userActivity();
return imple.current();
}
private CoordinatorManagerService _theCoordinatorService;
}