source: src/main/java/parties/in4010/q12015/group7/BidSpace.java@ 1

package parties.in4010.q12015.group7;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Random;
import java.util.Set;

import genius.core.Bid;

/**
 * Implements a HashMap in which all bids in a bidSpace can be saved
 * 
 * @author svanbekhoven
 *
 */
public class BidSpace {
        /**
         * HashMap with bid possibilities
         */
        public HashMap<Double, Bid> bidSpace;

        /**
         * Constructor
         */
        public BidSpace() {
                bidSpace = new HashMap<Double, Bid>();
        }

        /**
         * Add a bid to the bidspace
         * 
         * @param bid
         * @param util
         */
        public void add(Bid bid, double util) {
                bidSpace.put(util, bid);
        }

        /**
         * Returns a list with all bids between an min and max utility
         * 
         * @param minUtility
         * @param maxUtility
         * @return
         */
        public ArrayList<Bid> getBids(double minUtility, double maxUtility) {
                ArrayList<Bid> bids = new ArrayList<Bid>();
                Set<Double> keys = bidSpace.keySet();
                for (Double key : keys) {
                        if (key >= minUtility && key <= maxUtility) {
                                bids.add(new Bid(bidSpace.get(key)));
                        }
                }

                return bids;
        }

        /**
         * Generate a pseudo-random bid between a min and max utility
         * 
         * @param minUtility
         * @param maxUtility
         * @return
         */
        public Bid generatePseudoRandomBid(double minUtility, double maxUtility) {
                ArrayList<Bid> bids = getBids(minUtility, maxUtility);

                return new Bid(bids.get(new Random().nextInt(bids.size())));
        }
}