// Test method
public LinkedList<Integer> getLiveAuctionsIds() throws RemoteException {
LinkedList<Integer> ll = new LinkedList<Integer>();
for (AuctionItem t : liveAuctionItems.values()) {
ll.add(t.getAuctionId());
}
return ll;
}
@Override
public LinkedList<String> getExistingAuctions() throws RemoteException {
LinkedList<String> ll = new LinkedList<String>();
for (AuctionItem i : liveAuctionItems.values()) {
ll.add(i.toString());
}
return ll;
}
@Override
// Event though the data structure for live auctions is concurrent the method still needs to be
// synchronized because the creation
// of auction items concurrently produces auction items with the same id.
public synchronized boolean registerAuctionItem(
String name, double min_item_value, Date closing_date, int client) throws RemoteException {
AuctionItem item = new AuctionItem(name, min_item_value, closing_date, client, this);
liveAuctionItems.put(item.getAuctionId(), item);
Thread t = new Thread(item);
t.start();
return true;
}
@Override
public boolean moveToExpiredAuctions(int auctionId) {
if (!liveAuctionItems.containsKey(auctionId)) {
System.out.println("This auction does not exist\n");
return false;
}
AuctionItem temp;
if ((temp = liveAuctionItems.remove(auctionId)) != null) {
System.out.println("Auction successfully removed from list with live auctions\n");
// Change the auction id to correspond to the index
expiredAuctions.put(temp.getAuctionId(), temp);
Thread t = new Thread(temp);
t.start();
return true;
}
return false;
}
@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");
}
}
}
}
public static void main(String args[]) {
String host = "localhost";
int port = 1099;
if (args.length > 0) {
host = args[0];
port = Integer.parseInt(args[1]);
}
// Initialise auctions from permanent storage
BufferedReader br = null;
BufferedWriter bw = null;
try {
AuctionServer rmiServer = new AuctionServer();
Registry reg = LocateRegistry.getRegistry(host, port);
reg.rebind("auctionServer", rmiServer);
System.out.println("AuctionServer is ready");
System.out.println(
"Select one of the two options :\n1: To save live auctions\n2: To load test auctions that expire in a minute (note you need to start 5 clients first) ");
Scanner sc = new Scanner(System.in);
bw = new BufferedWriter(new FileWriter("auctionsSaved.dat"));
switch (sc.nextInt()) {
case 1:
for (AuctionItem item : rmiServer.liveAuctionItems.values()) {
bw.write(item.toString() + "\n");
}
System.out.println("Saved auctions state.");
break;
case 2:
GenerateAuctions generator = new GenerateAuctions();
generator.generateList();
br = new BufferedReader(new FileReader("auctionsBackup.dat"));
String currentLine;
while ((currentLine = br.readLine()) != null) {
String[] array = currentLine.split(",");
String name = array[0];
double min_item_value = Double.parseDouble(array[1]);
Date closing_date = new SimpleDateFormat("d/M/y H:mm:s").parse(array[2]);
int client = Integer.parseInt(array[3]);
rmiServer.registerAuctionItem(name, min_item_value, closing_date, client);
}
System.out.println("Initialised auctions...");
break;
}
} catch (RemoteException e) {
System.out.println("Exception in AuctionServer.main " + e);
} catch (MalformedURLException ue) {
System.out.println("MalformedURLException in RMIServerImp.main " + ue);
} catch (IOException e) {
System.out.println("Could not open file ");
e.printStackTrace();
} catch (ParseException e) {
System.out.println("Unable to parse date");
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
System.out.println("Unable to close file.");
}
}
if (bw != null) {
try {
bw.close();
} catch (IOException e) {
System.out.println("Unable to close file.");
}
}
}
}