source: src/test/java/uncertaintyexample/UncertaintyAgentExample.java@ 126

package uncertaintyexample;

import java.util.List;

import genius.core.Bid;
import genius.core.actions.Accept;
import genius.core.actions.Action;
import genius.core.actions.Offer;
import genius.core.parties.AbstractNegotiationParty;
import genius.core.uncertainty.AdditiveUtilitySpaceFactory;
import genius.core.uncertainty.ExperimentalUserModel;
import genius.core.utility.AbstractUtilitySpace;

public class UncertaintyAgentExample extends AbstractNegotiationParty {

        @Override
        public Action chooseAction(List<Class<? extends Action>> possibleActions) {
                log("This is the UncertaintyAgentExample.");
                log("The user model is: " + userModel);
                log("The default estimated utility space is: " + getUtilitySpace());

                Bid randomBid = getUtilitySpace().getDomain().getRandomBid(rand);
                log("The default estimate of the utility of a random bid + " + randomBid
                                + " is: " + getUtility(randomBid));

                if (userModel instanceof ExperimentalUserModel) {
                        log("You have given the agent access to the real utility space for debugging purposes.");
                        ExperimentalUserModel e = (ExperimentalUserModel) userModel;
                        AbstractUtilitySpace realUSpace = e.getRealUtilitySpace();

                        log("The real utility space is: " + realUSpace);
                        log("The real utility of the random bid is: "
                                        + realUSpace.getUtility(randomBid));
                }

                // Sample code that accepts offers that appear in the top 10% of offers
                // in the user model
                if (getLastReceivedAction() instanceof Offer) {
                        Bid receivedBid = ((Offer) getLastReceivedAction()).getBid();
                        List<Bid> bidOrder = userModel.getBidRanking().getBidOrder();

                        // If the rank of the received bid is known
                        if (bidOrder.contains(receivedBid)) {
                                double percentile = (bidOrder.size()
                                                - bidOrder.indexOf(receivedBid))
                                                / (double) bidOrder.size();
                                if (percentile < 0.1)
                                        return new Accept(getPartyId(), receivedBid);
                        }
                }

                // Otherwise, return a random offer
                return new Offer(getPartyId(), generateRandomBid());
        }

        private void log(String s) {
                System.out.println(s);
        }

        /**
         * With this method, you can override the default estimate of the utility
         * space given uncertain preferences specified by the user model. This
         * example sets every value to zero.
         */
        @Override
        public AbstractUtilitySpace estimateUtilitySpace() {
                return new AdditiveUtilitySpaceFactory(getDomain()).getUtilitySpace();
        }

        @Override
        public String getDescription() {
                return "Example agent that can deal with uncertain preferences";
        }

}