source: src/main/java/negotiator/parties/ConsensusVotingHumanAgent.java@ 256

package negotiator.parties;

import java.util.LinkedList;
import java.util.List;
import java.util.Queue;

import javax.swing.JOptionPane;

import genius.core.AgentID;
import genius.core.Bid;
import genius.core.SupportedNegotiationSetting;
import genius.core.actions.Accept;
import genius.core.actions.Action;
import genius.core.actions.EndNegotiation;
import genius.core.actions.Offer;
import genius.core.actions.OfferForVoting;
import genius.core.parties.AbstractNegotiationParty;
import genius.core.parties.NegotiationInfo;
import genius.core.protocol.AlternatingMultipleOffersProtocol;
import genius.core.protocol.DefaultMultilateralProtocol;
import genius.core.utility.AdditiveUtilitySpace;

/**
 * @author W.Pasman, modified version of Dmytro's UIAgent
 */
public class ConsensusVotingHumanAgent extends AbstractNegotiationParty {
        private Action opponentAction = null;
        private EnterBidDialogInterface ui = null;
        private Bid myPreviousBid = null;
        private Queue<Bid> offers = new LinkedList<Bid>();

        /**
         * One agent will be kept alive over multiple sessions. Init will be called
         * at the start of each negotiation 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 EnterBidDialogOfferForVoting(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) {
                        offers.offer(((OfferForVoting) opponentAction).getBid());
                }

                // if (opponentAction instanceof Accept && sender != this) {
                // JOptionPane.showMessageDialog(null,
                // "" + sender + " accepted your last offer.");
                // }

                if (opponentAction instanceof EndNegotiation) {
                        JOptionPane.showMessageDialog(null, "" + sender + " cancelled the negotiation session");
                }
        }

        @Override
        public Action chooseAction(List<Class<? extends Action>> possibleActions) {
                if (ui != null) {
                        ui.dispose();
                        ui = null;
                }
                try {
                        if (possibleActions.contains(Accept.class)) {
                                Bid topic = offers.poll();
                                ui = new EnterBidDialogAcceptReject(this, null, true, (AdditiveUtilitySpace) utilitySpace, topic);
                        } else {
                                ui = new EnterBidDialogOfferForVoting(this, null, true, (AdditiveUtilitySpace) utilitySpace);
                        }

                } catch (Exception e) {
                        System.out.println("Problem in UIAgent2.init:" + e.getMessage());
                        e.printStackTrace();
                }
                System.out.println("ui.getClass().toString() = " + ui.getClass().toString());
                Action action = ui.askUserForAction(opponentAction, myPreviousBid);
                // System.out.println("action = " + action);
                if ((action != null) && (action instanceof Offer)) {
                        myPreviousBid = ((Offer) action).getBid();
                        offers.offer(myPreviousBid);
                }
                return action;
        }

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

        @Override
        public Class<? extends DefaultMultilateralProtocol> getProtocol() {
                return AlternatingMultipleOffersProtocol.class;
        }

        @Override
        public String getDescription() {
                return "Consensus Voting Human GUI";
        }
}