A complete 3D game development suite written purely in Java.
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jmonkeyengine/jme3-examples/src/main/java/jme3test/network/TestChatClient.java

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/*
* Copyright (c) 2011 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package jme3test.network;
import com.jme3.network.Client;
import com.jme3.network.ClientStateListener;
import com.jme3.network.ErrorListener;
import com.jme3.network.Message;
import com.jme3.network.MessageListener;
import com.jme3.network.Network;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;
import jme3test.network.TestChatServer.ChatMessage;
/**
* A simple test chat server. When SM implements a set
* of standard chat classes this can become a lot simpler.
*
* @version $Revision$
* @author Paul Speed
*/
public class TestChatClient extends JFrame {
private final Client client;
private final JEditorPane chatLog;
private final StringBuilder chatMessages = new StringBuilder();
private final JTextField nameField;
private final JTextField messageField;
public TestChatClient(String host) throws IOException {
super("jME3 Test Chat Client - to:" + host);
// Build out the UI
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
setSize(800, 600);
chatLog = new JEditorPane();
chatLog.setEditable(false);
chatLog.setContentType("text/html");
chatLog.setText("<html><body>");
getContentPane().add(new JScrollPane(chatLog), "Center");
// A crude form
JPanel p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
p.add(new JLabel("Name:"));
nameField = new JTextField(System.getProperty("user.name", "yourname"));
Dimension d = nameField.getPreferredSize();
nameField.setMaximumSize(new Dimension(120, d.height + 6));
p.add(nameField);
p.add(new JLabel(" Message:"));
messageField = new JTextField();
p.add(messageField);
p.add(new JButton(new SendAction(true)));
p.add(new JButton(new SendAction(false)));
getContentPane().add(p, "South");
client = Network.connectToServer(TestChatServer.NAME, TestChatServer.VERSION,
host, TestChatServer.PORT, TestChatServer.UDP_PORT);
client.addMessageListener(new ChatHandler(), ChatMessage.class);
client.addClientStateListener(new ChatClientStateListener());
client.addErrorListener(new ChatErrorListener());
client.start();
System.out.println("Started client:" + client);
}
@Override
public void dispose() {
System.out.println("Chat window closing.");
super.dispose();
if( client.isConnected() ) {
client.close();
}
}
public static String getString(Component owner, String title, String message, String initialValue) {
return (String) JOptionPane.showInputDialog(owner, message, title, JOptionPane.PLAIN_MESSAGE,
null, null, initialValue);
}
public static void main(String... args) throws Exception {
// Increate the logging level for networking...
System.out.println("Setting logging to max");
Logger networkLog = Logger.getLogger("com.jme3.network");
networkLog.setLevel(Level.FINEST);
// And we have to tell JUL's handler also
// turn up logging in a very convoluted way
Logger rootLog = Logger.getLogger("");
if( rootLog.getHandlers().length > 0 ) {
rootLog.getHandlers()[0].setLevel(Level.FINEST);
}
// Note: in JME 3.1 this is generally unnecessary as the server will
// send a message with all server-registered classes.
// TestChatServer.initializeClasses();
// Leaving the call commented out to be illustrative regarding the
// common old pattern.
// Grab a host string from the user
String s = getString(null, "Host Info", "Enter chat host:", "localhost");
if (s == null) {
System.out.println("User cancelled.");
return;
}
// Register a shutdown hook to get a message on the console when the
// app actually finishes
Runtime.getRuntime().addShutdownHook(new Thread() {
@Override
public void run() {
System.out.println("Chat client is terminating.");
}
});
TestChatClient test = new TestChatClient(s);
test.setVisible(true);
}
private class ChatHandler implements MessageListener<Client> {
@Override
public void messageReceived(Client source, Message m) {
ChatMessage chat = (ChatMessage) m;
System.out.println("Received:" + chat);
// One of the least efficient ways to add text to a
// JEditorPane
chatMessages.append("<font color='#00a000'>" + (m.isReliable() ? "TCP" : "UDP") + "</font>");
chatMessages.append(" -- <font color='#000080'><b>" + chat.getName() + "</b></font> : ");
chatMessages.append(chat.getMessage());
chatMessages.append("<br />");
String s = "<html><body>" + chatMessages + "</body></html>";
chatLog.setText(s);
// Set selection to the end so that the scroll panel will scroll
// down.
chatLog.select(s.length(), s.length());
}
}
private class ChatClientStateListener implements ClientStateListener {
@Override
public void clientConnected(Client c) {
System.out.println("clientConnected(" + c + ")");
}
@Override
public void clientDisconnected(Client c, DisconnectInfo info) {
System.out.println("clientDisconnected(" + c + "):" + info);
if( info != null ) {
// The connection was closed by the server
JOptionPane.showMessageDialog(rootPane,
info.reason,
"Connection Closed",
JOptionPane.INFORMATION_MESSAGE);
dispose();
}
}
}
private class ChatErrorListener implements ErrorListener<Client> {
@Override
public void handleError( Client source, Throwable t ) {
System.out.println("handleError(" + source + ", " + t + ")");
JOptionPane.showMessageDialog(rootPane,
String.valueOf(t),
"Connection Error",
JOptionPane.ERROR_MESSAGE);
}
}
private class SendAction extends AbstractAction {
private final boolean reliable;
public SendAction(boolean reliable) {
super(reliable ? "TCP" : "UDP");
this.reliable = reliable;
}
@Override
public void actionPerformed(ActionEvent evt) {
String name = nameField.getText();
String message = messageField.getText();
ChatMessage chat = new ChatMessage(name, message);
chat.setReliable(reliable);
System.out.println("Sending:" + chat);
client.send(chat);
}
}
}