private static int counter;

private Subject server;

public int number;

private Socket socket;

private String senderName = "noname"; //name, or nick of a chat user

OutputStream outputStream;

InputStream inputStream;

ClientThread clientThread;

public void close() {

try {

System.out.println("Removing observer #" + number);

server.removeObserver(this);

System.out.println("Closing client #" + number);

clientThread.interrupt();

inputStream.close();

outputStream.close();

socket.close();

} catch (IOException e) {

e.printStackTrace();

}

}

@Override

public void update(ChatMessage message) throws IOException {

System.out.println("Inside update() " + number + " received message " + message.getMessage());

System.out.println("sending message...");

//ChatClient client = (ChatClient) message.sender;

//char chars[] = (message.getSender().getSenderName() + ": " + message.getMessage()).toCharArray();

char chars[] = getMessageForSend(message);

//TODO convert message to function

//char chars[] = message.getMessage().toCharArray();

for (char c:chars) {

//outputStream.write((int)c);

//System.out.println("Sending " + c);

outputStream.write((int) c);

}

outputStream.flush();

System.out.println("Sent: " + message.getMessage());

}

/** Composes messages for send (using message body, sender name etc.)

*

* @param message

* @return

*/

private char[] getMessageForSend(ChatMessage message) {

char chars[] = (message.getSender().getSenderName() + ": " + message.getMessage()).toCharArray();

return chars;

}

@Override

public String getSenderName() {

return senderName;

}

public Socket getSocket() {

return socket;

}

public ChatClient(Subject server, Socket socket) throws IOException {

this.server=server;

counter++;

number=counter;

this.socket=socket;

//run new thread for listening server

System.out.println("New ChatClient #" + number + " created");

inputStream = socket.getInputStream();

outputStream = socket.getOutputStream();

//TODO получение имени клиента вставить здесь

//authorize();

clientThread = new ClientThread();

clientThread.start();

}

public void display() {

System.out.println("display() called by Observer#" + number);

}

class ClientThread extends Thread {

/**

* makes all necessary for client authorization - receiving name, password if needed

*/

private void authorize() throws IOException {

final String NAME_REQUEST = new String("What's your name or nick, " + socket.getInetAddress() + "?\n");

OutputStreamWriter writer = new OutputStreamWriter(outputStream);

Scanner scanner = new Scanner(inputStream);

writer.write(NAME_REQUEST);

writer.flush();

System.out.println("Request to user sent");

//read user name

ChatClient.this.senderName = scanner.nextLine();

writer.write("Welcome to chat, " + ChatClient.this.senderName + "!\n");

writer.flush();

//update(new ChatMessage(ChatClient.this, new String("What's your name or nick, " + socket.getInetAddress() + "?\n")));

}

public void run() {

//listen client and notify subject after receiving new messages

try {

authorize();

System.out.println(number + " at " + socket.getInetAddress() + " started to listen");

int i=0;

while (i>=0) {

StringBuffer buffer = new StringBuffer();

System.out.println("New buffer for listening created");

i=0;

//read single line

while ((char)i!='\n') {

//когда socket закрывается - тут срабатывает exception

i = inputStream.read();

buffer.append((char)i);

}

//buffer = new StringBuffer();

//inputStream.close();

System.out.println("Before notify buffer is " + buffer);

server.notifyObservers(new ChatMessage(ChatClient.this, buffer.toString()));

System.out.println(number + " notified observers about message: " + buffer.toString());

}

close();

} catch (IOException e) {

e.printStackTrace();

//close socket

// if IO exception occured

close();

}

}

}