/*
* 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;
}
}
}
}
// what will run forever
public void run() {
// to loop until LOGOUT
boolean keepGoing = true;
while (keepGoing) {
// read a String (which is an object)
try {
cm = (ChatMessage) sInput.readObject();
} catch (IOException e) {
display(username + " Exception reading Streams: " + e);
break;
} catch (ClassNotFoundException e2) {
break;
}
// the messaage part of the ChatMessage
String message = cm.getMessage();
// Switch on the type of message receive
switch (cm.getType()) {
case ChatMessage.MESSAGE:
broadcast(username + ": " + message);
break;
case ChatMessage.LOGOUT:
display(username + " disconnected with a LOGOUT message.");
keepGoing = false;
break;
case ChatMessage.WHOISIN:
writeMsg("List of the users connected at " + sdf.format(new Date()) + "\n");
// scan al the users connected
for (int i = 0; i < al.size(); ++i) {
ClientThread ct = al.get(i);
writeMsg((i + 1) + ") " + ct.username + " since " + ct.date);
}
break;
case ChatMessage.TO:
broadcastOnlyOne(username + ": " + message, cm);
break;
case ChatMessage.SENDFILE:
sendFile(username + ": " + message, cm);
break;
case ChatMessage.PROCEED:
proceedSendFile();
break;
case ChatMessage.SENDMEDIAFILE:
String fileList = getFileList();
writeMsg(new ChatMessage(ChatMessage.SENDMEDIAFILE, fileList));
break;
case ChatMessage.ESTABLISHCONNECTIONANDPLAY:
sendMediaFile(username + ": " + message, cm);
break;
}
}
// remove myself from the arrayList containing the list of the
// connected Clients
remove(id);
close();
}
/*
* Write a String to the Client output stream
*/
private boolean writeMsg(ChatMessage cm) {
// if Client is still connected send the message to it
if (!socket.isConnected()) {
close();
return false;
}
// write the message to the stream
try {
boolean sendChatMessage = cm.getType() == ChatMessage.ESTABLISHCONNECTION;
boolean sendMediaFileMessage = cm.getType() == ChatMessage.ESTABLISHCONNECTIONANDPLAY;
if (sendChatMessage || sendMediaFileMessage) sOutput.writeObject(cm);
else sOutput.writeObject(cm.getMessage());
}
// if an error occurs, do not abort just inform the user
catch (IOException e) {
display("Error sending message to " + username);
display(e.toString());
}
return true;
}
// what will run forever
public void run() {
// to loop until LOGOUT
boolean keepGoing = true;
while (keepGoing) {
// read a String (which is an object)
try {
cm = (ChatMessage) sInput.readObject();
} catch (IOException e) {
display(username + " Exception reading Streams: " + e);
break;
} catch (ClassNotFoundException e2) {
break;
}
// the messaage part of the ChatMessage
String message = cm.getMessage();
// Switch on the type of message receive
switch (cm.getType()) {
case ChatMessage.MESSAGE:
broadcast(username + ": " + message);
break;
case ChatMessage.LOGOUT:
display(username + " LOGOUT dari chat.");
keepGoing = false;
break;
case ChatMessage.WHOISIN:
writeMsg("Daftar Client yang terkoneksi pada " + sdf.format(new Date()) + "\n");
// scan al the users connected
for (int i = 0; i < al.size(); ++i) {
ClientThread ct = al.get(i);
writeMsg((i + 1) + ") " + ct.username + " sejak " + ct.date);
}
break;
}
}
// remove myself from the arrayList containing the list of the
// connected Clients
remove(id);
close();
}
