package agents.nastyagent;
import java.util.Comparator;
import genius.core.Bid;
import genius.core.utility.UtilitySpace;
/**
* {@link Comparator} for {@link Bid}s. Used for sorting a set of bids.
*
* Use example:
* Collections.sort(bids, new BidComparator(utilitySpace));
*
* @author W.Pasman
*
*/
public class BidComparator implements java.util.Comparator {
UtilitySpace utilspace;
public BidComparator(UtilitySpace us) {
if (us == null)
throw new NullPointerException("null utility space");
utilspace = us;
}
public int compare(Bid b1, Bid b2) throws ClassCastException {
double d1 = 0, d2 = 0;
try {
d1 = utilspace.getUtility(b1);
d2 = utilspace.getUtility(b2);
} catch (Exception e) {
e.printStackTrace();
}
if (d1 < d2)
return 1;
if (d1 > d2)
return -1;
return 0;
}
}