public void checkCommand() {
try {
// Create inputstream
BufferedReader fromClient =
new BufferedReader(new InputStreamReader(socket.getInputStream()));
// Create outputstream
PrintWriter toClient = new PrintWriter(socket.getOutputStream(), true);
toClient.println("Welcome to Chatroom! ");
String inputLine; // String read from Client
String outputLine; // String send to Client
HandleMessage listener =
new HandleMessage(
socket, users.getName(index)); // to listen if it has message sent by other users
new Thread(listener).start(); // Start the thread
// Create UserMessage instance, to store and get message passing among users
UserMessage usermessage = new UserMessage();
// Create TimeNoActive instance, to find if user did nothing for a period time
TimeNoActive timer_noactive = new TimeNoActive(socket);
// Begin to detect no action
timer_noactive.execute();
toClient.println("> ");
// name = users.getName(index); // name of the current user
// Begin to serve the clients and accept commands
while ((inputLine = fromClient.readLine()) != null) {
// System.out.println(inputLine);
// Command "whoelse", to see who are now in the chatroom
if (inputLine.equals("whoelse")) {
// int size = users.getSize(); // get the size of the current users
for (int j = 0; j < size; ++j) {
if (users.getRecord(j) && j != index) toClient.println(users.getName(j));
}
timer_noactive.reset();
// timer_noactive.execute();
}
// Command "wholasthr", to see who logined in last hour
else if (inputLine.equals("wholasthr")) {
// int size = users.getSize();
for (int j = 0; j < size; ++j) {
if (users.getLastHour(j) && j != index) toClient.println(users.getName(j));
}
timer_noactive.reset();
// timer_noactive.execute();
}
// Command "logout"
else if (inputLine.equals("logout")) {
users.resetRecord(index); // clear the record for the user
break;
}
// Command "broadcast"
else if (inputLine.length() > 9 && inputLine.substring(0, 9).equals("broadcast")) {
// String name = users.getName(index); // get the user name
String message = inputLine.substring(9); // get the message after broadcast
// int size = users.getSize(); // get the size of current users
for (int i = 0; i < size; ++i) {
if (users.getRecord(i) && i != index) {
usermessage.addMessage(message, name, users.getName(i));
}
}
timer_noactive.reset();
// timer_noactive.execute();
}
// Command "Private"
else if (inputLine.length() > 7 && inputLine.substring(0, 7).equals("message")) {
int i = 7;
while (inputLine.charAt(i) == ' ' && i < inputLine.length()) // Ignore the blank " "
i++;
// int size = users.getSize();
int j = 0;
for (j = 0; j < size; ++j) {
if (users.getRecord(j)
&& inputLine.indexOf(users.getName(j)) == i) // It does not detect names like "win"
break;
} // and "windows", just return first find
if (j == size) {
toClient.println("This user is not online or not exist ");
} else {
String reciever = users.getName(j);
String message =
inputLine.substring(
i + reciever.length()); // message will stay after "private" and "name"
usermessage.addMessage(message, name, reciever);
}
timer_noactive.reset();
// timer_noactive.execute();
}
// Wrong command
else {
toClient.println("Wrong Command ");
timer_noactive.reset();
// timer_noactive.execute();
}
toClient.println("> ");
}
toClient.println("logout"); // act as a flag to stop the reciever of client
} catch (IOException e) {
System.err.println(e);
}
}
