source: src/main/java/negotiator/boaframework/opponentmodel/OppositeModel.java

package negotiator.boaframework.opponentmodel;

import java.util.Map;

import genius.core.Bid;
import genius.core.boaframework.NegotiationSession;
import genius.core.boaframework.OpponentModel;
import genius.core.issue.Issue;
import genius.core.utility.AdditiveUtilitySpace;
import negotiator.boaframework.opponentmodel.tools.UtilitySpaceAdapter;

/**
 * Simple baseline opponent model which just mirror's the utility space of the
 * agent. Note that the model does not measure the issue weights, it makes no
 * sense.
 * 
 * Tim Baarslag, Koen Hindriks, Mark Hendrikx, Alex Dirkzwager and Catholijn M.
 * Jonker. Decoupling Negotiating Agents to Explore the Space of Negotiation
 * Strategies
 * 
 * @author Mark Hendrikx
 */
public class OppositeModel extends OpponentModel {

        @Override
        public void init(NegotiationSession negotiationSession, Map<String, Double> parameters) {
                this.negotiationSession = negotiationSession;
                this.opponentUtilitySpace = new UtilitySpaceAdapter(this, negotiationSession.getUtilitySpace().getDomain());
        }

        @Override
        public void updateModel(Bid bid, double time) {
        }

        @Override
        public double getBidEvaluation(Bid bid) {
                try {
                        return (1.0 - negotiationSession.getUtilitySpace().getUtility(bid));
                } catch (Exception e) {
                        e.printStackTrace();
                }
                return 0.0;
        }

        //
        public double getWeight(Issue issue) {
                return ((AdditiveUtilitySpace) negotiationSession.getUtilitySpace()).getWeight(issue.getNumber());
        }

        @Override
        public String getName() {
                return "Opposite Model";
        }
}