/*
* Copyright (c) 2010-2020 Nathan Rajlich
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
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.client.WebSocketClient;
import org.java_websocket.drafts.Draft;
import org.java_websocket.drafts.Draft_6455;
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_6455()};
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) {
cc.send(chatField.getText());
chatField.setText("");
chatField.requestFocus();
}
} 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 occurred ...\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) {
cc.close();
}
}
public static void main(String[] args) {
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);
}
}