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import java.awt.Container;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowEvent;

import java.net.URI;

import java.net.URISyntaxException;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import org.java_websocket.WebSocket;

import org.java_websocket.WebSocketClient;

import org.java_websocket.drafts.Draft;

import org.java_websocket.drafts.Draft_10;

import org.java_websocket.drafts.Draft_17;

import org.java_websocket.drafts.Draft_75;

import org.java_websocket.drafts.Draft_76;

import org.java_websocket.handshake.ServerHandshake;

public class ChatClient extends JFrame implements ActionListener {

private static final long serialVersionUID = -6056260699202978657L;

private final JTextField uriField;

private final JButton connect;

private final JButton close;

private final JTextArea ta;

private final JTextField chatField;

private final JComboBox draft;

private WebSocketClient cc;

public ChatClient( String defaultlocation ) {

super( "WebSocket Chat Client" );

Container c = getContentPane();

GridLayout layout = new GridLayout();

layout.setColumns( 1 );

layout.setRows( 6 );

c.setLayout( layout );

Draft[] drafts = { new Draft_17(), new Draft_10(), new Draft_76(), new Draft_75() };

draft = new JComboBox( drafts );

c.add( draft );

uriField = new JTextField();

uriField.setText( defaultlocation );

c.add( uriField );

connect = new JButton( "Connect" );

connect.addActionListener( this );

c.add( connect );

close = new JButton( "Close" );

close.addActionListener( this );

close.setEnabled( false );

c.add( close );

JScrollPane scroll = new JScrollPane();

ta = new JTextArea();

scroll.setViewportView( ta );

c.add( scroll );

chatField = new JTextField();

chatField.setText( "" );

chatField.addActionListener( this );

c.add( chatField );

java.awt.Dimension d = new java.awt.Dimension( 300, 400 );

setPreferredSize( d );

setSize( d );

addWindowListener( new java.awt.event.WindowAdapter() {

@Override

public void windowClosing( WindowEvent e ) {

if( cc != null ) {

cc.close();

}

dispose();

}

} );

setLocationRelativeTo( null );

setVisible( true );

}

public void actionPerformed( ActionEvent e ) {

if( e.getSource() == chatField ) {

if( cc != null ) {

try {

cc.send( chatField.getText() );

chatField.setText( "" );

chatField.requestFocus();

} catch ( InterruptedException ex ) {

ex.printStackTrace();

}

}

} else if( e.getSource() == connect ) {

try {

// cc = new ChatClient(new URI(uriField.getText()), area, ( Draft ) draft.getSelectedItem() );

cc = new WebSocketClient( new URI( uriField.getText() ), (Draft) draft.getSelectedItem() ) {

@Override

public void onMessage( String message ) {

ta.append( "got: " + message + "\n" );

ta.setCaretPosition( ta.getDocument().getLength() );

}

@Override

public void onOpen( ServerHandshake handshake ) {

ta.append( "You are connected to ChatServer: " + getURI() + "\n" );

ta.setCaretPosition( ta.getDocument().getLength() );

}

@Override

public void onClose( int code, String reason, boolean remote ) {

ta.append( "You have been disconnected from: " + getURI() + "; Code: " + code + " " + reason + "\n" );

ta.setCaretPosition( ta.getDocument().getLength() );

connect.setEnabled( true );

uriField.setEditable( true );

draft.setEditable( true );

close.setEnabled( false );

}

@Override

public void onError( Exception ex ) {

ta.append( "Exception occured ...\n" + ex + "\n" );

ta.setCaretPosition( ta.getDocument().getLength() );

ex.printStackTrace();

connect.setEnabled( true );

uriField.setEditable( true );

draft.setEditable( true );

close.setEnabled( false );

}

};

close.setEnabled( true );

connect.setEnabled( false );

uriField.setEditable( false );

draft.setEditable( false );

cc.connect();

} catch ( URISyntaxException ex ) {

ta.append( uriField.getText() + " is not a valid WebSocket URI\n" );

}

} else if( e.getSource() == close ) {

try {

cc.close();

} catch ( Exception ex ) {

ex.printStackTrace();

}

}

}

public static void main( String[] args ) {

WebSocket.DEBUG = true;

String location;

if( args.length != 0 ) {

location = args[ 0 ];

System.out.println( "Default server url specified: \'" + location + "\'" );

} else {

location = "ws://localhost:8887";

System.out.println( "Default server url not specified: defaulting to \'" + location + "\'" );

}

new ChatClient( location );

}

}