/*
* 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";
// display message on console or GUI
if (sg == null) System.out.print(messageLf);
else sg.appendRoom(messageLf); // append in the room window
// 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.");
}
}
}
/*
* Display an event (not a message) to the console or the GUI
*/
private void display(String msg) {
String time = sdf.format(new Date()) + " " + msg;
if (sg == null) System.out.println(time);
else sg.appendEvent(time + "\n");
}