source: src/main/java/negotiator/parties/MediatorHumanNegotiationParty.java@ 126

package negotiator.parties;

import java.util.List;

import javax.swing.JOptionPane;

import genius.core.AgentID;
import genius.core.Bid;
import genius.core.SupportedNegotiationSetting;
import genius.core.Vote;
import genius.core.actions.Action;
import genius.core.actions.InformVotingResult;
import genius.core.actions.OfferForVoting;
import genius.core.parties.AbstractNegotiationParty;
import genius.core.parties.Mediator;
import genius.core.parties.NegotiationInfo;
import genius.core.utility.AdditiveUtilitySpace;

/**
 * modified version of W.Pasman's modified version of Dmytro's UIAgent
 *
 * @author David Festen
 */
public class MediatorHumanNegotiationParty extends AbstractNegotiationParty implements Mediator {
        private Action opponentAction = null;
        private EnterBidDialogAcceptance ui = null;
        private Bid mostRecentAgreement = null;
        private Bid mostRecentOffer = null;

        /**
         * One agent will be kept alive over multiple sessions. Init will be called
         * at the start of each nego session.
         */
        @Override
        public void init(NegotiationInfo info) {
                super.init(info);
                System.out.println("init UIAgent");

                System.out.println("closing old dialog of ");
                if (ui != null) {
                        ui.dispose();
                        ui = null;
                }
                System.out.println("old  dialog closed. Trying to open new dialog. ");
                try {
                        ui = new EnterBidDialogAcceptance(this, null, true, (AdditiveUtilitySpace) utilitySpace);
                } catch (Exception e) {
                        System.out.println("Problem in UIAgent2.init:" + e.getMessage());
                        e.printStackTrace();
                }
                System.out.println("finished init of UIAgent2");

        }

        @Override
        public void receiveMessage(AgentID sender, Action arguments) {
                this.opponentAction = arguments;

                if (opponentAction instanceof OfferForVoting) {
                        mostRecentOffer = ((OfferForVoting) opponentAction).getBid();
                }

                if (opponentAction instanceof InformVotingResult
                                && ((InformVotingResult) opponentAction).getVotingResult().equals(Vote.ACCEPT)) {
                        mostRecentAgreement = mostRecentOffer;
                        System.out.println("mostRecentAgreement = " + mostRecentAgreement);
                        JOptionPane.showMessageDialog(null, "The offer is accepted. You can continue to "
                                        + "accept/reject new offers to find a better agreement.");
                }
        }

        @Override
        public Action chooseAction(List<Class<? extends Action>> possibleActions) {
                return ui.askUserForAction(opponentAction, mostRecentOffer, mostRecentAgreement);
        }

        public SupportedNegotiationSetting getSupportedNegotiationSetting() {
                return SupportedNegotiationSetting.getLinearUtilitySpaceInstance();
        }

        @Override
        public String getDescription() {
                return "Mediator GUI";
        }
}