package com.c2kernel.lifecycle.instance;

import java.util.ArrayList;
import java.util.StringTokenizer;

import com.c2kernel.graph.model.DirectedEdge;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.scripting.ScriptingEngineException;

/**
 * @version $Revision: 1.23 $ $Date: 2006/03/03 13:52:21 $
 * @author  $Author: abranson $
 */
public class XOrSplit extends Split
{
    /**
     * @see java.lang.Object#Object()
     */
    public XOrSplit()
    {
        super();
    }

    @Override
	public void runNext(AgentPath agent) throws ScriptingEngineException
    {
        ArrayList<DirectedEdge> nextsToFollow = new ArrayList<DirectedEdge>();
        String nexts = this.evaluateScript(
            (String) getProperties().get("RoutingScriptName"),
            (String) getProperties().get("RoutingScriptVersion")).toString();

        StringTokenizer tok = new StringTokenizer(nexts,",");
        String[] nextsTab = new String[tok.countTokens()];
        for (int i=0;i<nextsTab.length;i++)
            nextsTab[i] = tok.nextToken();

        DirectedEdge[] outEdges = getOutEdges();
        for (DirectedEdge outEdge : outEdges) {
            if (isInTable((String)((Next)outEdge).getProperties().get("Alias"), nextsTab))
                nextsToFollow.add(outEdge);
        }
//        Logger.debug(0, getID()+" following "+nexts);
        if (nextsToFollow.size() != 1)
            throw new ScriptingEngineException("not good number of active next");

        followNext((Next)nextsToFollow.get(0), agent);

    }

    public void followNext(Next activeNext, AgentPath agent) throws ScriptingEngineException {
        activeNext.getTerminusVertex().run(agent);
    }

}