/*
* to broadcast a private message to all Clients
*/
private synchronized void broadcastOnlyOne(String message, ChatMessage cm) {
// add HH:mm:ss and \n to the message
String time = sdf.format(new Date());
String messageLf = time + " " + message + "\r\n";
System.out.print(messageLf);
serverGUI.serverTextArea.append(messageLf);
// we loop in reverse order in case we would have to remove a Client
// because it has disconnected
for (int i = al.size(); --i >= 0; ) {
ClientThread ct = al.get(i);
// try to write to the Client if it fails remove it from the list
if (cm.getType() == ChatMessage.ESTABLISHCONNECTION
|| cm.getType() == ChatMessage.ESTABLISHCONNECTIONANDPLAY) {
if (cm.getTO().equalsIgnoreCase(ct.username) && !ct.writeMsg(cm)) {
al.remove(i);
display("Disconnected Client " + ct.username + " removed from list.");
break;
}
} else {
if (cm.getTO().equalsIgnoreCase(ct.username) && !ct.writeMsg(message)) {
al.remove(i);
display("Disconnected Client " + ct.username + " removed from list.");
break;
}
}
}
}
public void start() {
keepGoing = true;
/* create socket server and wait for connection requests */
try {
// the socket used by the server
ServerSocket serverSocket = new ServerSocket(port);
// infinite loop to wait for connections
while (keepGoing) {
// format message saying we are waiting
display("Server menunggu koneksi Client pada port " + port + ".");
Socket socket = serverSocket.accept(); // accept connection
// if I was asked to stop
if (!keepGoing) break;
ClientThread t = new ClientThread(socket); // make a thread of it
al.add(t); // save it in the ArrayList
t.start();
}
// I was asked to stop
try {
serverSocket.close();
for (int i = 0; i < al.size(); ++i) {
ClientThread tc = al.get(i);
try {
tc.sInput.close();
tc.sOutput.close();
tc.socket.close();
} catch (IOException ioE) {
// not much I can do
}
}
} catch (Exception e) {
display("Exception closing the server and clients: " + e);
}
}
// something went bad
catch (IOException e) {
String msg = sdf.format(new Date()) + " Exception on new ServerSocket: " + e + "\n";
display(msg);
}
}
/*
* to broadcast a message to all Clients
*/
private synchronized void broadcast(String message) {
// add HH:mm:ss and \n to the message
String time = sdf.format(new Date());
String messageLf = time + " " + message + "\n";
System.out.print(messageLf);
serverGUI.serverTextArea.append(messageLf);
// we loop in reverse order in case we would have to remove a Client
// because it has disconnected
for (int i = al.size(); --i >= 0; ) {
ClientThread ct = al.get(i);
// try to write to the Client if it fails remove it from the list
if (!ct.writeMsg(messageLf)) {
al.remove(i);
display("Disconnected Client " + ct.username + " removed from list.");
}
}
}