/**
* Place a bid on the specified item identifier
*
* @param id item identifier
* @param bid Bid object to represent the bid
* @throws AuctionNotFoundException when bid does not exists
* @throws BidInvalidException when the bid is lower than the previous one
* @throws RemoteException on RMI error
*/
public void placeBid(int id, Bid bid)
throws AuctionNotFoundException, BidInvalidException, RemoteException {
logger.info("Placing a new bid for item %d", id);
AuctionItem item = auctions.get(id);
if (item == null) {
logger.warning("Auction %d does not exists", id);
throw new AuctionNotFoundException();
}
synchronized (item) {
if (!item.isOpen()) {
logger.warning("Attempt to place a bid on the closed item %d", id);
throw new BidInvalidException("Auction is closed for this item");
}
if (item.getHighestBid() != null && bid.getValue() <= item.getHighestBid().getValue()) {
logger.info("Bid too low on item %d", id);
throw new BidInvalidException("Amount is too low");
}
item.addBid(bid);
}
}
/**
* Create a new auction with the specified informations
*
* @param itemName Long name of the item
* @param minValue minimum value of the item required
* @param endTime End of the auction for the specified item
* @param owner AuctionClient associated to this bid used for callback
* @return the bid Identifier
* @throws RemoteException on RMI error
*/
public int createAuction(String itemName, double minValue, Date endTime, IAuctionClient owner)
throws RemoteException {
int auctionId = auctions.getUniqueId();
AuctionItem item = new AuctionItem(auctionId, itemName, minValue, endTime, owner);
// make sure that nothing happens to the item before it has been
// added to the auction collection and to the cleaner
synchronized (item) {
auctions.add(auctionId, item);
cleaner.add(item);
}
logger.info("Creating auction %d", auctionId);
return auctionId;
}