source: src/main/java/negotiator/boaframework/acceptanceconditions/anac2010/AC_Yushu.java

package negotiator.boaframework.acceptanceconditions.anac2010;

import java.util.Map;

import genius.core.bidding.BidDetails;
import genius.core.boaframework.AcceptanceStrategy;
import genius.core.boaframework.Actions;
import genius.core.boaframework.NegotiationSession;
import genius.core.boaframework.OfferingStrategy;
import genius.core.boaframework.OpponentModel;
import negotiator.boaframework.sharedagentstate.anac2010.YushuSAS;

/**
 * This is the decoupled Acceptance Conditions for Yushu (ANAC2010). The code
 * was taken from the ANAC2010 Yushu and adapted to work within the BOA
 * framework.
 * 
 * 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
 */
public class AC_Yushu extends AcceptanceStrategy {

        private double roundleft;

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

        public AC_Yushu(NegotiationSession negoSession, OfferingStrategy strat) throws Exception {
                init(negoSession, strat, null, null);
        }

        @Override
        public void init(NegotiationSession negoSession, OfferingStrategy strat, OpponentModel opponentModel,
                        Map<String, Double> parameters) throws Exception {
                this.negotiationSession = negoSession;
                offeringStrategy = strat;

                // checking if offeringStrategy helper is a YushuHelper
                if (offeringStrategy.getHelper() == null || (!offeringStrategy.getHelper().getName().equals("Yushu"))) {
                        helper = new YushuSAS(negotiationSession);
                } else {
                        helper = (YushuSAS) offeringStrategy.getHelper();
                }
        }

        @Override
        public Actions determineAcceptability() {

                BidDetails opponentBid = negotiationSession.getOpponentBidHistory().getLastBidDetails();
                BidDetails myBid = negotiationSession.getOwnBidHistory().getLastBidDetails();
                roundleft = ((YushuSAS) helper).getRoundLeft();
                if (offeringStrategy.getHelper() == null || (!offeringStrategy.getHelper().getName().equals("Yushu"))) {
                        ((YushuSAS) helper).updateBelief(opponentBid);
                }

                BidDetails suggestedBid = ((YushuSAS) helper).getSuggestBid();
                double acceptableUtil = ((YushuSAS) helper).getAcceptableUtil();

                if (opponentBid != null) {
                        double targetUtil;
                        if (myBid == null) {
                                targetUtil = 1;
                        } else if (offeringStrategy.getHelper() != null && offeringStrategy.getHelper().getName().equals("Yushu")) {
                                targetUtil = ((YushuSAS) helper).getTargetUtil();
                        } else {
                                targetUtil = ((YushuSAS) helper).calculateTargetUtility();
                        }
                        if ((opponentBid.getMyUndiscountedUtil() >= targetUtil)
                                        | (opponentBid.getMyUndiscountedUtil() >= acceptableUtil)) {
                                if (suggestedBid == null || roundleft < 8) {
                                        return Actions.Accept;
                                }
                                if ((suggestedBid != null) && (roundleft > 8)) {
                                        if (suggestedBid.getMyUndiscountedUtil() <= opponentBid.getMyUndiscountedUtil()) {
                                                return Actions.Accept;
                                        }
                                }
                        }
                }
                return Actions.Reject;
        }

        @Override
        public String getName() {
                return "2010 - Yushu";
        }
}