/**
* This method is invoked when a round finishes
*
* @see gridsim.auction.OneSidedAuction#onClose(int)
*/
public void onClose(int round) {
// our implementation of the first price sealed auction has
// a single round. So, since we are using a reverse auction, the
// lowest bid is the best one
MessageBid best = getFirstBid(-1);
if (best != null) {
double price = best.getPrice();
// if the price of the bid is below the reserve price, it means
// that the broker will accept the offer and will send the job
// to be executed by the resource provider
if (price <= super.getReservePrice()) {
super.setFinalPrice(price);
super.setWinner(best.getBidder());
} else {
super.setFinalPrice(super.getCurrentPrice());
}
} else {
// there is no best bid, what means that no resource provider
// has bidden to execute the job
super.setFinalPrice(super.getCurrentPrice());
}
}
/*
* @param round
* @param excBidder the bids done by excBidder will be excluded from the response
* @return
*/
private synchronized LinkedList getBids(int round, int excBidder) {
LinkedList aux = new LinkedList();
synchronized (this) {
Iterator iter = bids.iterator();
while (iter.hasNext()) {
MessageBid bid = (MessageBid) iter.next();
if (bid.getRound() == round && bid.getBidder() != excBidder) {
aux.add(bid);
}
}
}
return aux;
}
/** @see java.util.Comparator#compare(java.lang.Object, java.lang.Object) */
public int compare(Object a, Object b) throws ClassCastException {
if (a == null) {
return -1;
} else if (b == null) {
return 1;
} else if (a == null && b == null) {
return 0;
} else {
MessageBid bida = (MessageBid) a;
MessageBid bidb = (MessageBid) b;
Double d_c1 = new Double(bida.getPrice());
Double d_c2 = new Double(bidb.getPrice());
return d_c1.compareTo(d_c2);
}
}
