refparticipant.java

一个工作流设计及定义的系统,可以直接与数据库结合进行系统工作流程的定义及应用.

/*
 * Copyright (c) 2005, John Mettraux, OpenWFE.org
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 * . Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.  
 * 
 * . Redistributions in binary form must reproduce the above copyright notice, 
 *   this list of conditions and the following disclaimer in the documentation 
 *   and/or other materials provided with the distribution.
 * 
 * . Neither the name of the "OpenWFE" nor the names of its contributors may be
 *   used to endorse or promote products derived from this software without
 *   specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * $Id: RefParticipant.java,v 1.5 2005/05/17 16:40:47 jmettraux Exp $
 */

//
// RefParticipant.java
//
// [e-mail]
//
// generated with 
// jtmpl 1.0.04 20.11.2001 John Mettraux ([e-mail])
//

package openwfe.org.engine.participants;

import openwfe.org.MapUtils;
import openwfe.org.ApplicationContext;
import openwfe.org.engine.Definitions;
import openwfe.org.engine.history.History;
import openwfe.org.engine.workitem.WorkItem;
import openwfe.org.engine.workitem.CancelItem;
import openwfe.org.engine.workitem.InFlowWorkItem;
import openwfe.org.engine.dispatch.LaunchDispatcher;
import openwfe.org.engine.dispatch.WorkItemDispatcher;
import openwfe.org.engine.dispatch.DispatchingException;


/**
 * An alias for another participant
 *
 * <p><font size=2>CVS Info :
 * <br>$Author: jmettraux $
 * <br>$Date: 2005/05/17 16:40:47 $
 * <br>$Id: RefParticipant.java,v 1.5 2005/05/17 16:40:47 jmettraux Exp $ </font>
 *
 * @author [e-mail]
 */
public class RefParticipant

    extends AbstractParticipant

{

    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger
        .getLogger(RefParticipant.class.getName());

    //
    // CONSTANTS & co

    public final static String P_REF
        = "ref";

    //
    // FIELDS

    private String target = null;

    //
    // CONSTRUCTORS

    public void init 
        (final ParticipantMap pMap,
         final String regex,
         final java.util.Map params)
    {
        super.init(pMap, regex, params);

        this.target = MapUtils.getMandatoryString(params, P_REF);
    }

    //
    // BEAN METHODS

    //
    // METHODS

    public Object dispatch (final WorkItem wi) 
        throws DispatchingException
    {
        final Participant targetParticipant = getParticipantMap()
            .get(this.target);

        log.debug("dispatch() ref to '"+targetParticipant.getRegex()+"'");

        if (wi instanceof InFlowWorkItem)
        {
            ((InFlowWorkItem)wi)
                .setParticipantName(targetParticipant.getRegex());
        }

        return targetParticipant.dispatch(wi);
    }

}