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

/**
  * An application to create a ServerSocket object and
  * spin off a threaded process to serve each client.
 **/
public class MicroServer {

  public static void main (String argv[]) throws IOException {

    int port; // port number

    // Get the port number from the command line.
    try{
      port = Integer.parseInt (argv[0]);
    } catch (Exception e) {
      port = 2222; // Default
      System.out.println ("Use default port = 2222");
    }

    // Create a ServerSocket object to watch that port for clients
    ServerSocket server_socket = new ServerSocket (port);
    System.out.println ("Server started");

    // Loop indefinitely while waiting for clients to connect
    while (true) {

      // accept () does not return until a client requests a connection
      Socket client_socket = server_socket.accept ();

      // Now that a client has arrived, create an instance of our special
      // thread subclass to respond to it.
      Worker worker = new Worker (client_socket);
      worker.start ();
      System.out.println ("New client connected");
    }
  } // main

} // class MicroServer