import java.net.*; 
import java.io.*; 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class SimpleChatv2 extends JFrame 
{ 
 private ServerSocket connectionSocket = null; 
 private JTextField displayLabel;
 private final Color colorValues[] = 
      { Color.black, Color.blue, Color.red, Color.green }; 

   // set up GUI
   public SimpleChatv2()
   {
      super( "Using JMenus" );     

      // set up File menu and its menu items
      JMenu fileMenu = new JMenu( "File" );
      fileMenu.setMnemonic( 'F' );

      // set up Activate Server menu item
      JMenuItem serverItem = new JMenuItem( "Activate Server");
      serverItem.setMnemonic( 'S' );
      fileMenu.add( serverItem );
      serverItem.addActionListener(

         new ActionListener() {  // anonymous inner class

            // display message dialog when user selects About...
            public void actionPerformed( ActionEvent event )
            {
               setUpServer();
            }
         }  // end anonymous inner class
      ); // end call to addActionListener

      // set up Activate Client menu item
      JMenuItem clientItem = new JMenuItem( "Activate Client");
      clientItem.setMnemonic( 'C' );
      fileMenu.add( clientItem );
      clientItem.addActionListener(

         new ActionListener() {  // anonymous inner class

            // display message dialog when user selects About...
            public void actionPerformed( ActionEvent event )
            {
               setUpClient();
            }
         }  // end anonymous inner class
      ); // end call to addActionListener

      // set up About... menu item
      JMenuItem aboutItem = new JMenuItem( "About..." );
      aboutItem.setMnemonic( 'A' );
      fileMenu.add( aboutItem );
      aboutItem.addActionListener(

         new ActionListener() {  // anonymous inner class

            // display message dialog when user selects About...
            public void actionPerformed( ActionEvent event )
            {
               JOptionPane.showMessageDialog( SimpleChatv2.this,
                  "This is an example\nof using menus",
                  "About", JOptionPane.PLAIN_MESSAGE );
            }

         }  // end anonymous inner class

      ); // end call to addActionListener
 
      // set up Exit menu item
      JMenuItem exitItem = new JMenuItem( "Exit" );
      exitItem.setMnemonic( 'x' );
      fileMenu.add( exitItem );
      exitItem.addActionListener(

         new ActionListener() {  // anonymous inner class

            // terminate application when user clicks exitItem
            public void actionPerformed( ActionEvent event )
            {
               System.exit( 0 );
            }

         }  // end anonymous inner class

      ); // end call to addActionListener

      // create menu bar and attach it to MenuTest window
      JMenuBar bar = new JMenuBar();  
      setJMenuBar( bar );  
      bar.add( fileMenu );    

     
      // set up label to display text
      displayLabel = new JTextField( "Sample Text", SwingConstants.CENTER );
      displayLabel.setForeground( colorValues[ 0 ] );
      displayLabel.setFont( new Font( "Serif", Font.PLAIN, 72 ) );

      getContentPane().setBackground( Color.CYAN );
      getContentPane().add( displayLabel, BorderLayout.CENTER );

      setSize( 500, 200 );
      setVisible( true );

   } // end constructor

  public static void main( String args[] )
   {
      SimpleChatv2 application = new SimpleChatv2();
      application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
   }

 public void setUpServer() //throws IOException 
   { 
    connectionSocket = null; 

    try { 
         connectionSocket = new ServerSocket(10007); 
        } 
    catch (IOException e) 
        { 
         System.err.println("Could not listen on port: 10007."); 
         System.exit(1); 
        } 

    JOptionPane.showMessageDialog( SimpleChatv2.this,
                  "Server Socket is now activated",
                  "Server", JOptionPane.PLAIN_MESSAGE );

    
    ServerThread st = new ServerThread (connectionSocket, displayLabel);
    st.start();
   } 


public  void setUpClient()
   {
    ClientThread st = new ClientThread ();
    st.start();
   }
} 

class ServerThread extends Thread
{
  private ServerSocket connectionSocket;
  private JTextField display;

  public ServerThread (ServerSocket servSock, JTextField disp)
    {
     connectionSocket = servSock;
     display = disp;
    }

  public void run()
    {
     Socket communicationSocket = null; 

    try { 
         communicationSocket = connectionSocket.accept(); 
        } 
    catch (IOException e) 
        { 
         System.err.println("Accept failed."); 
         System.exit(1); 
        } 

    try { 
         PrintWriter out = new PrintWriter(communicationSocket.getOutputStream(), 
                                      true); 
         BufferedReader in = new BufferedReader( 
                 new InputStreamReader( communicationSocket.getInputStream())); 

         String inputLine; 

         while ((inputLine = in.readLine()) != null) 
             { 
              System.out.println ("Server: " + inputLine); 
              out.println(inputLine); 
              display.setText (inputLine);

              if (inputLine.equals("Bye.")) 
                  break; 
             } 

         out.close(); 
         in.close(); 
         communicationSocket.close(); 
         connectionSocket.close(); 
        } 
    catch (IOException e) 
        { 
         System.err.println("Accept failed."); 
         System.exit(1); 
        } 
    }
}

class ClientThread extends Thread
{
 public void run ()
   {
        Socket echoSocket = null;
        PrintWriter out = null;
        BufferedReader in = null;

        try {
            // echoSocket = new Socket("taranis", 7);
            echoSocket = new Socket("127.0.0.1", 10007);
            out = new PrintWriter(echoSocket.getOutputStream(), true);
            in = new BufferedReader(new InputStreamReader(
                                        echoSocket.getInputStream()));
        } catch (UnknownHostException e) {
            System.err.println("Don't know about host: taranis.");
            System.exit(1);
        } catch (IOException e) {
            System.err.println("Couldn't get I/O for "
                               + "the connection to: taranis.");
            System.exit(1);
        }

        try {
	       BufferedReader stdIn = new BufferedReader(
                                   new InputStreamReader(System.in));
	       String userInput;

	      while ((userInput = stdIn.readLine()) != null) {
	          out.println(userInput);
	          System.out.println("echo: " + in.readLine());
    	      }

	      out.close();
	      in.close();
	      stdIn.close();
	      echoSocket.close();
        } catch (IOException e) {
            System.err.println("Couldn't get I/O for "
                               + "the connection to: taranis.");
            System.exit(1);
        }

    }


}