import java.net.*;
import java.io.*;
import java.util.*;

/** A client has connected, start collecting info from that user */
public class ClientHandler implements Runnable {
    protected DataInputStream  in;
    protected PrintStream      out;
    protected Socket socket;
    protected ChatServer server;
    String user;

    public ClientHandler(ChatServer server, Socket socket)
            throws IOException
    {
        this.server = server;
        this.socket = socket;
        in = new DataInputStream(socket.getInputStream());
        out = new PrintStream(socket.getOutputStream());
        user = in.readLine(); // first line is user
        server.registerClient(user, out);
    }

    public void run() {
        try {
            String line = // ### read from client
            // ### copy while loop from previous Server.java here
            while ... {
                server.broadcast(user, line);
                // ### read another line
            }
            server.disconnect(user);
            // ### close down the streams / socket
        }
        catch (IOException e) { // EOF
            // sends disconnect message to everyone
            server.disconnect(user);
        }
    }
}