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

public class MultiTextReceiver {

    public static void main (String[] argv)
    {
	try {
	    // Create a listening service for connections at the designated port number.
	    ServerSocket srv = new ServerSocket (9003);
	    
	    int numConnections = 0;

	    while (true) {
		// Wait for a connection to come in.
		System.out.println ("Server: waiting for a connection ...");
		Socket soc = srv.accept ();

		// At this stage, the connection will have been made.  
		InetAddress remoteMachine = soc.getInetAddress();
		System.out.println ("Accepted a connection from " + remoteMachine);

		// We are going to listen, so get an InputStream  
		InputStream inStream = soc.getInputStream ();      
		LineNumberReader lnr = new LineNumberReader (new InputStreamReader (inStream));
		numConnections ++;

                // Create an instance of a object that handles this connection in a separate thread.
		LineReaderObject lineReader = new LineReaderObject (lnr, numConnections);
		System.out.println ("Server: created connection ID=" + numConnections);

                // Start the thread:
		lineReader.start();

	    } //end-while

	}
	catch (IOException e) { 
	    System.out.println (e); 
	}
    }

}


class LineReaderObject extends Thread {

    LineNumberReader lnr;
    int ID;

    public LineReaderObject (LineNumberReader lnr, int ID)
    {
	this.lnr = lnr;
	this.ID = ID;
    }


    // Override the run() method in Thread. This is what is called by the
    // thread once it starts.

    public void run ()
    {
        // readLine() needs a try-catch.
	try {
	    String line = lnr.readLine ();
	    while (line != null) {
		System.out.println ("[I# " + ID + "] Received: " + line);
		line = lnr.readLine();
	    }
	}
	catch (IOException e) {
	    System.out.println (e);
	}
    }

}