package com.nailabs.abac.process;

import com.nailabs.abac.trust.*;
import com.nailabs.abac.test.*;
import java.util.*;

/**
 * A linking soilution edge represents an edge in a trust target graph 
 * between a <CODE>LinkingGoalNode</CODE> and it's solution children.
 */
public class LinkingSolutionEdge extends EdgeOperation {
    /** Default constructor */   
    public LinkingSolutionEdge() {
        super();
        type = new String("LinkingSolution");
    }

    /** Parsed element constructor */
    public LinkingSolutionEdge(LinkingGoal parent, TrustTarget child, 
                              ProcessingState state) {
        super(parent, child, state, null);
        type = "LinkingSolution";
    }
    
    public void performAdditional(TTG graph) {
        SimpleTTNode child = (SimpleTTNode)graph.getNodeByHash(getChild());
        LinkingGoalNode parent = 
            (LinkingGoalNode)graph.getNodeByHash(getParent());

        parent.addChild(child);
        child.addLinkingSolutionParent(parent);
    }
    
    public void performNewAdditional(TTG graph) {
        TargetNode child = (TargetNode)graph.getNodeByHash(getChild());
        if(child == null) {
            child = (TargetNode)TTGNode.createNode(getChild());
            child.getProcessingState().update(state);
            graph.putNodeByHash(child);
        }
        performAdditional(graph); 
    }

}