@Override
public void notifyResult(AuctionItem item) {
if (registeredUsers.containsKey(item.getCreator_id())) {
RMIClientIntf creator = registeredUsers.get(item.getCreator_id());
try {
creator.callBack("Your Auction has produced the following results :\n ");
creator.callBack(item.getResult());
} catch (RemoteException e) {
System.out.println("Creator no longer online\n");
}
} else {
System.out.println("Creator id does not exist\n");
} // Normally an auction with no creator registered should not exist but since this is a
// simplified implementation
// We allow bids on auctions with no creator (usually the initialised ones) for testing
// purposes.
if (item.numberOfBids() != 0) {
System.out.println("Notifying bidders");
Iterator<Bid> it = item.getBidders();
while (it.hasNext()) {
Bid bidder = it.next();
if (registeredUsers.containsKey(bidder.getUserId())) {
RMIClientIntf client = registeredUsers.get(bidder.getUserId());
try {
client.callBack(item.getResult());
} catch (RemoteException e) {
System.out.println("Bidder with id " + bidder.getUserId() + " no longer online\n");
}
} else {
System.out.println("User id does not exist\n");
}
}
}
}
@Override
public boolean registerBid(double value, int uniqueUserId, int auctionId) throws RemoteException {
RMIClientIntf clientIntf = registeredUsers.get(uniqueUserId);
Bid bid = new Bid(value, uniqueUserId);
if (!liveAuctionItems.containsKey(auctionId)) {
clientIntf.callBack("Auction item id does not exist\n");
return false;
}
if (uniqueUserId == liveAuctionItems.get(auctionId).getCreator_id()) {
clientIntf.callBack("Not able to register bid - bidder is the creator of this auction\n");
return false;
} else {
if (liveAuctionItems.get(auctionId).addBidder(bid)) {
clientIntf.callBack(
"Bid registered to auction with id "
+ auctionId
+ " and amount "
+ bid.getBid()
+ "\n");
return true;
} else {
clientIntf.callBack(
"Bid rejected, user has already placed a bid for this auction, can only place higher bids\n");
return false;
}
}
}
public static void newBids(Long id) {
// count new bids
long newBids =
Bid.count(
"from AuctionItem a join a.bids as b " + "where a.id = ? AND b.date > ?",
id,
request.date);
// wait if needed
if (newBids == 0) {
await("1s");
}
// return the JSON output of the new bids
AuctionItem item = AuctionItem.findById(id);
JsonObject json = new JsonObject();
json.addProperty("next", item.getNextBidPrice());
json.addProperty("top", item.getCurrentTopBid());
renderJSON(json.toString());
}
/**
* Goes trough the table auction and checks which auctions are over. If the auction is over, finds
* all bids for that auction, selects the highest bid and sends winning message, also sends to all
* other users message that auction is over.
*/
public static void checkAuctionOutcome() {
// Declaring list of all auctions.
List<Auction> auctions = finder.all();
// Declaring variable that represents current date.
Date currentDate = new Date();
// Going trough all auctions.
for (int i = 0; i < auctions.size(); i++) {
// Declaring variable that represents auction ending date.
Date auctionEndingDate = auctions.get(i).endingDate;
// Checking if the auction is active and if the auction ending date is before current date.
if (auctions.get(i).isActive && auctionEndingDate.before(currentDate)) {
// Finding all auction bids.
List<Bid> bids = Bid.getAuctionBids(auctions.get(i));
// Declaring variable that represents highest bid.
Bid highestBid = bids.get(0);
// Declaring string variable that represents winning message.
String winningMessage =
"Congratulations!!! You won bitBay auction for item #"
+ auctions.get(i).product.id
+ " - "
+ auctions.get(i).product.name
+ ".\n\r \n\r To proceed with transaction please contact: "
+ auctions.get(i).product.user.email;
// Declaring and saving winning message.
Message message =
new Message(
CommonHelpers.serviceUser(), highestBid.user, "Auction Winning", winningMessage);
message.save();
// Sending SMS notification to auction winner.
String sms =
"Congratulations!!! You won bitBay auction for item #"
+ auctions.get(i).product.id
+ " - "
+ auctions.get(i).product.name
+ ". "
+ "This product has been sent to your cart";
if (highestBid.user.phoneNumber != null) {
SmsHelper.sendSms(sms, highestBid.user.phoneNumber);
}
// After user won on auction create new cart if user don't have one, and put auction item to
// his cart
Cart cart = Cart.findCartByUser(highestBid.user);
if (cart == null) {
Cart newCart = new Cart();
newCart.user = highestBid.user;
newCart.save();
CartItem cartItem = new CartItem(auctions.get(i).product, highestBid.user, newCart);
cartItem.save();
} else {
CartItem cartItem = new CartItem(auctions.get(i).product, highestBid.user, cart);
cartItem.save();
}
// Declaring string set that will contain emails of all users that have not had highest bid.
Set<String> bidUsers = new HashSet<>();
// Adding all user emails to the set.
for (int j = 0; j < bids.size(); j++) {
bidUsers.add(bids.get(j).user.email);
}
// Removing email of highest bit user from the set.
bidUsers.remove(highestBid.user.email);
// Declaring string variable that represents losing message.
String losingMessage =
"Biding for item #"
+ auctions.get(i).product.id
+ " - "
+ auctions.get(i).product.name
+ " is over.\n\r \n\r We are sorry to inform you that your bid was not enough.";
// Declaring iterator list of all user emails.
Iterator<String> iter = bidUsers.iterator();
// Going trough all emails and sending message.
while (iter.hasNext()) {
User receiver = User.getUserByEmail(iter.next());
Message msg =
new Message(CommonHelpers.serviceUser(), receiver, "Auction results", losingMessage);
msg.save();
}
// Setting auction status to inactive.
auctions.get(i).isActive = false;
auctions.get(i).update();
}
}
}
