source: src/main/java/negotiator/boaframework/acceptanceconditions/other/AC_Const.java

package negotiator.boaframework.acceptanceconditions.other;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import genius.core.bidding.BidDetails;
import genius.core.boaframework.AcceptanceStrategy;
import genius.core.boaframework.Actions;
import genius.core.boaframework.BOAparameter;
import genius.core.boaframework.NegotiationSession;
import genius.core.boaframework.OfferingStrategy;
import genius.core.boaframework.OpponentModel;

/**
 * This Acceptance Condition accepts an opponent bid if the utility is above a
 * constant.
 * 
 * Decoupling Negotiating Agents to Explore the Space of Negotiation Strategies
 * T. Baarslag, K. Hindriks, M. Hendrikx, A. Dirkzwager, C.M. Jonker
 * 
 * @author Alex Dirkzwager, Mark Hendrikx
 * @version 15-12-11
 */
public class AC_Const extends AcceptanceStrategy {

        private double constant;

        /**
         * Empty constructor for the BOA framework.
         */
        public AC_Const() {
        }

        public AC_Const(NegotiationSession negoSession, double c) {
                this.negotiationSession = negoSession;
                this.constant = c;
        }

        @Override
        public void init(NegotiationSession negoSession, OfferingStrategy strat, OpponentModel opponentModel,
                        Map<String, Double> parameters) throws Exception {
                this.negotiationSession = negoSession;
                if (parameters.get("c") != null) {
                        constant = parameters.get("c");
                } else {
                        throw new Exception("Constant \"c\" for the threshold was not set.");
                }
        }

        @Override
        public String printParameters() {
                return "[c: " + constant + "]";
        }

        @Override
        public Actions determineAcceptability() {
                BidDetails opponentBid = negotiationSession.getOpponentBidHistory().getLastBidDetails();
                if (opponentBid.getMyUndiscountedUtil() > constant) {
                        return Actions.Accept;
                }
                return Actions.Reject;
        }

        @Override
        public Set<BOAparameter> getParameterSpec() {

                Set<BOAparameter> set = new HashSet<BOAparameter>();
                set.add(new BOAparameter("c", 0.9, "If utility of opponent's bid greater than c, then accept"));

                return set;
        }

        @Override
        public String getName() {
                return "Other - Const";
        }
}