public class XMPPAuction implements Auction {
private Chat chat;
public static final String JOIN_COMMAND_FORMAT = "SOLVersion: 1.1; Command: JOIN;";
public static final String BID_COMMAND_FORMAT = "SOLVersion: 1.1; Command: BID; Price: %d";
static final String AUCTION_RESOURCE = "Auction";
private static final String ITEM_ID_AS_LOGIN = "******";
private static final String AUCTION_ID_FORMAT =
ITEM_ID_AS_LOGIN + "@%s/" + XMPPAuction.AUCTION_RESOURCE;
private final Announcer<AuctionEventListener> auctionEventListeners =
Announcer.to(AuctionEventListener.class);
public XMPPAuction(XMPPConnection connection, String itemId) {
AuctionMessageTranslator translator = translatorFor(connection);
chat = connection.getChatManager().createChat(auctionId(itemId, connection), translator);
addAuctionEventListener(chatDisconnectorFor(translator));
}
public static String auctionId(String itemId, XMPPConnection connection) {
return String.format(AUCTION_ID_FORMAT, itemId, connection.getServiceName());
}
public void bid(int amount) {
sendMessage(String.format(BID_COMMAND_FORMAT, amount));
}
public void join() {
sendMessage(JOIN_COMMAND_FORMAT);
}
private void sendMessage(String message) {
try {
chat.sendMessage(message);
} catch (XMPPException e) {
e.printStackTrace();
}
}
public void addAuctionEventListener(AuctionEventListener listener) {
auctionEventListeners.addListener(listener);
}
private AuctionMessageTranslator translatorFor(XMPPConnection connection) {
// TODO: treaba asta cu announce() care returneaza un AuctionEventListener n-o prea pricep
return new AuctionMessageTranslator(connection.getUser(), auctionEventListeners.announce());
}
private AuctionEventListener chatDisconnectorFor(final AuctionMessageTranslator translator) {
return new AuctionEventListener() {
@Override
public void auctionClosed() {}
@Override
public void currentPrice(int price, int increment, PriceSource source) {}
@Override
public void auctionFailed() {
chat.removeMessageListener(translator);
}
};
}
}
