Package de.danet.an.workflow.clients.wfxml

Source Code of de.danet.an.workflow.clients.wfxml.StateMapper

/*
* This file is part of the WfMOpen project.
* Copyright (C) 2001-2006 Danet GmbH (www.danet.de), BU BTS.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*
* $Id: StateMapper.java 2205 2007-01-31 22:55:36Z mlipp $
*
* $Log$
* Revision 1.4  2007/01/31 12:24:07  drmlipp
* Design revisited.
*
* Revision 1.3  2007/01/30 21:06:40  mlipp
* Fixed handling of not explicitly initialized substates.
*
* Revision 1.2  2007/01/30 11:56:14  drmlipp
* Merged Wf-XML branch.
*
* Revision 1.1.2.3  2007/01/11 10:23:52  schnelle
* Creation of StateChanged notifications.
*
* Revision 1.1.2.2  2006/12/20 14:37:59  schnelle
* Implemented Factory GetDefinition.
*
* Revision 1.1.2.1  2006/12/20 13:32:25  schnelle
* Basic implementato of GetProperties for Instance and Activity.
*
*/
package de.danet.an.workflow.clients.wfxml;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import de.danet.an.workflow.omgcore.InvalidStateException;

/**
* This class provides a mapping facility of ASAP state definitions to OMG
* state definitions and vice versa.
*
* @author Dirk Schnelle
*/
class StateMapper {
    /** Mapping of ASAP states to OMG states. */
    private static final Map omgStates;

    /** Mapping of OMG states to ASAP states. */
    private static final Map asapStates;
    private static final List asapStatesList;

    static {
        omgStates = new java.util.HashMap();

        omgStates.put("open.notrunning", "open.not_running.not_started");
        omgStates.put("open.notrunning.suspended", "open.not_running.suspended");
        omgStates.put("open.running", "open.running");
        omgStates.put("open.running.debug.completing", "open.running.debug.completing");
        omgStates.put("closed.completed", "closed.completed");
        omgStates.put("closed.abnormalCompleted", "closed.aborted");
        omgStates.put("closed.abnormalCompleted.terminated", "closed.terminated");
        omgStates.put("closed.abnormalCompleted.aborted", "closed.aborted");

        asapStates = new java.util.HashMap();

        asapStates.put("open", "open");
        asapStates.put("open.not_running", "open.notrunning");
        asapStates.put("open.not_running.not_started", "open.notrunning");
        asapStates.put("open.not_running.suspended", "open.notrunning.suspended");
        asapStates.put("open.running", "open.running");
        asapStates.put("open.running.running", "open.running");
        asapStates.put("open.running.debug.completing", "open.running.debug.completing");
        asapStates.put("closed", "closed");
        asapStates.put("closed.completed", "closed.completed");
        asapStates.put("closed.completed.normal", "closed.completed");
        asapStates.put("closed.terminated", "closed.abnormalCompleted.terminated");
        asapStates.put("closed.aborted", "closed.abnormalCompleted.aborted");
       
        asapStatesList = new ArrayList (asapStates.keySet());
        Collections.sort (asapStatesList, new Comparator () {
            public int compare (Object o1, Object o2) {
                  return ((String)o2).length() - ((String)o1).length();
              }
          });
    }

    /**
     * Retrieves the name of the ASAP state for the given OMG state.
     * @param omgState name of the OMG state.
     * @return name of the correspondent ASAP state.
     * @throws InvalidStateException
     */
    static String omg2asapState(String omgState) {
       
        String res = (String)asapStates.get(omgState);
        if (res != null) {
            return res;
        }
        for (Iterator i = asapStatesList.iterator(); i.hasNext();) {
            String parentState = (String)i.next();
            if (omgState.startsWith(parentState)) {
                res = (String)asapStates.get(parentState);
                break;
            }
        }
        asapStates.put(omgState, res);
        return res;
    }
   
    /**
     * Retrieves the name of the OMG state for the given ASAP state.
     * @param asapState name of the ASAP state.
     * @return name of the correspondent OMG state.
     * @throws InvalidStateException
     */
    static String asap2omgState(String asapState)
        throws InvalidStateException {
        String omgState = (String) omgStates.get(asapState);
        if (omgState == null) {
            throw new InvalidStateException("unkonwn state: '" + asapState
                    + "'");
        }
        return omgState;
    }
}
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