/**
 * This file is part of the CRISTAL-iSE kernel.
 * Copyright (c) 2001-2014 The CRISTAL Consortium. All rights reserved.
 *
 * This library 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 3 of the License, or (at
 * your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; with out 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 library; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 * http://www.fsf.org/licensing/licenses/lgpl.html
 */
package org.cristalise.kernel.lifecycle.instance;
import java.util.StringTokenizer;

import org.cristalise.kernel.common.InvalidDataException;
import org.cristalise.kernel.graph.model.DirectedEdge;
import org.cristalise.kernel.lookup.AgentPath;
import org.cristalise.kernel.lookup.ItemPath;
import org.cristalise.kernel.scripting.ScriptingEngineException;
import org.cristalise.kernel.utils.Logger;

/**
 * @version $Revision: 1.22 $ $Date: 2005/05/10 15:14:54 $
 * @author $Author: abranson $
 */
public class OrSplit extends Split
{
	/**
	 * @see java.lang.Object#Object()
	 */
	public OrSplit()
	{
		super();
	}
	@Override
	public void runNext(AgentPath agent, ItemPath itemPath) throws InvalidDataException
	{
		String nexts;
		String scriptName = (String) getProperties().get("RoutingScriptName");
		Integer scriptVersion = getVersionNumberProperty("RoutingScriptVersion");
        try {
			nexts = this.evaluateScript(scriptName, scriptVersion, itemPath).toString();
		} catch (ScriptingEngineException e) {
			Logger.error(e);
			throw new InvalidDataException("Error running routing script "+scriptName+" v"+scriptVersion);
		}
		StringTokenizer tok = new StringTokenizer(nexts, ",");
		Logger.msg(7, tok.countTokens() + " nexts to activate:" + nexts);
		int active = 0;
		try
		{
			DirectedEdge[] outEdges = getOutEdges();
            AdvancementCalculator adv = new AdvancementCalculator();
            adv.calculate((CompositeActivity)getParent());
			while (tok.hasMoreTokens())
			{
				String thisNext = tok.nextToken();
				Logger.msg(7, "Finding next " + thisNext);
				for (DirectedEdge outEdge : outEdges) {
					Next nextEdge = (Next) outEdge;
					if (thisNext != null && thisNext.equals(nextEdge.getProperties().get("Alias")))
					{
                        WfVertex term = nextEdge.getTerminusVertex();
                        term.run(agent, itemPath);
						Logger.msg(7, "Running " + nextEdge.getProperties().get("Alias"));
						active++;
					}
				}
			}
			// if no active nexts throw exception
		}
		catch (Exception e)
		{
			Logger.error(e);
		}
		if (active == 0)
			throw new InvalidDataException("No nexts were activated!");
	}


}