package com.c2kernel.lifecycle;
import com.c2kernel.common.InvalidDataException;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.graph.model.Vertex;
import com.c2kernel.graph.traversal.GraphTraversal;
import com.c2kernel.lifecycle.instance.Activity;
import com.c2kernel.lifecycle.instance.WfVertex;
import com.c2kernel.utils.KeyValuePair;
import com.c2kernel.utils.LocalObjectLoader;
/**
 * @version $Revision: 1.46 $ $Date: 2005/10/05 07:39:36 $
 * @author $Author: abranson $
 */
public class ActivitySlotDef extends WfVertexDef
{
	private String activityDef;

	/**
	 * Method setActivityDef.
	 *
	 * @param oActivityDef
	 */
	public void setActivityDef(String oActivityDef)
	{
		activityDef = oActivityDef;
	}
	/**
	 * Method getActivityDef.
	 *
	 * @return String
	 */
	public String getActivityDef()
	{
		return activityDef;
	}
	/**
	 * @see java.lang.Object#Object()
	 */
	public ActivitySlotDef()
	{
		getProperties().put("Name", "");
		getProperties().put("Version", 0);
	}

	public ActivityDef getTheActivityDef() throws ObjectNotFoundException, InvalidDataException
	{
		ActivityDef actDef = LocalObjectLoader.getActDef(getActivityDef(), getVersionNumberProperty("Version"));
		if (actDef instanceof CompositeActivityDef)
			mIsComposite = true;
		return actDef;
	}
	/**
	 * @see com.c2kernel.lifecycle.WfVertexDef#verify()
	 */
	/** launch the verification of the ActivityDef */
	@Override
	public boolean verify()
	{
		mErrors.removeAllElements();
		boolean err = true;
		int nbInEdgres = getInEdges().length;
		int nbOutEdges = getOutEdges().length;
		if (nbInEdgres == 0 && this.getID() != getParent().getChildrenGraphModel().getStartVertexId())
		{
			mErrors.add("Unreachable");
			err = false;
		}
		else if (nbInEdgres > 1)
		{
			mErrors.add("Bad nb of previous");
			err = false;
		}
		else if (nbOutEdges > 1)
		{
			mErrors.add("too many next");
			err = false;
		}
		else if (nbOutEdges == 0)
		{
			if (!((CompositeActivityDef) getParent()).hasGoodNumberOfActivity())
			{
				mErrors.add("too many endpoints");
				err = false;
			}
		}
		else
		{
			Vertex[] outV = getOutGraphables();
			Vertex[] anteVertices = GraphTraversal.getTraversal(getParent().getChildrenGraphModel(), this, GraphTraversal.kUp, false);
			boolean errInLoop = false;
			for (Vertex element : outV) {
				for (Vertex anteVertice : anteVertices)
					if (!loop() && element.getID() == anteVertice.getID())
						errInLoop = true;
			}
			if (errInLoop)
			{
				mErrors.add("Problem in Loop");
				err = false;
			}
		}
		return err;
	}
	/**
	 * Method getNextWfVertices.
	 *
	 * @return WfVertexDef[]
	 */
	public WfVertexDef[] getNextWfVertices()
	{
		return (WfVertexDef[]) getOutGraphables();
	}
	/**
	 * @see com.c2kernel.graph.model.GraphableVertex#isLayoutable()
	 */
	/**
	 * @see com.c2kernel.graph.model.GraphableVertex#getIsLayoutable()
	 */
	public boolean isLayoutable()
	{
		return true;
	}
	/**
	 * Method getInfo.
	 *
	 * @return CastorHashMap
	 */
	public void configureInstance(Activity act)
	{
		KeyValuePair[] k = getProperties().getKeyValuePairs();
		for (KeyValuePair element : k)
			act.getProperties().put(element.getKey(), element.getValue());
		act.setCentrePoint(getCentrePoint());
		act.setOutlinePoints(getOutlinePoints());
		act.setInEdgeIds(getInEdgeIds());
		act.setOutEdgeIds(getOutEdgeIds());
		act.setName(getActName());
		act.setID(getID());
	}

	public String getActName()
	{
		return (String) getProperties().get("Name");
	}

	@Override
	public WfVertex instantiate() throws ObjectNotFoundException, InvalidDataException {
		Activity newActivity = (Activity)getTheActivityDef().instantiate();
		configureInstance(newActivity);
		return newActivity;
	}
}