source: src/main/java/agents/anac/y2010/AgentFSEGA/ReverseBidComparator.java

package agents.anac.y2010.AgentFSEGA;

import genius.core.Bid;
import genius.core.utility.AdditiveUtilitySpace;

public class ReverseBidComparator implements java.util.Comparator<Bid>
{
        private AdditiveUtilitySpace usp;
        private final boolean TEST_EQUIVALENCE = false;
        
        public ReverseBidComparator(AdditiveUtilitySpace pUsp)
        {
                usp = pUsp;
        }
        
        public int compare(Bid b1, Bid b2)
        {
                try
                {
                        double u1 = usp.getUtility(b1);
                        double u2 = usp.getUtility(b2);
                        if (TEST_EQUIVALENCE) {
                                if (u1 == u2) {
                                        return String.CASE_INSENSITIVE_ORDER.compare(b1.toString(), b2.toString());
                                }
                        }
                        if(u1 > u2)
                                return -1; // ! is reversed
                        else if(u1 < u2)
                                return 1;
                        else
                                return 0;
                }
                catch(Exception e)
                { return -1; }
        }
}