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root/i-scream/experimental/MNote/uk/org/iscream/mnote/MNote.java
Revision: 1.1
Committed: Thu Jun 14 09:16:08 2001 UTC (23 years, 5 months ago) by ajm
Branch: MAIN
CVS Tags: HEAD
Log Message:
initial checkin of the Multicast Notification System

File Contents

# Content
1 package uk.org.iscream.mnote;
2
3 import java.net.UnknownHostException;
4 import java.io.IOException;
5 import javax.swing.JFrame;
6 import javax.swing.JButton;
7 import javax.swing.JOptionPane;
8 import javax.swing.JPanel;
9 import java.awt.event.ActionListener;
10 import java.awt.event.ActionEvent;
11 import java.awt.event.WindowAdapter;
12 import java.awt.event.WindowEvent;
13
14 class MNote extends JFrame implements NotificationListener {
15
16 private static final String MULTICAST_GROUP = "228.5.6.7";
17 private static final int PORT = 6789;
18
19 public static void main(String[] args) {
20 MNoteProtocolHandler protocolHandler = new MNoteProtocolHandler();
21 MNoteSocketHandler socketHandler = null;
22 try {
23 socketHandler = new MNoteSocketHandler(PORT, MULTICAST_GROUP, protocolHandler);
24 } catch (UnknownHostException e) {
25 System.err.println("UNKNOWN HOST: " + e);
26 } catch (IOException e2) {
27 System.err.println("IO ERROR: " + e2);
28 }
29 MNote mNote = new MNote("MNote - Multicast Notification System", protocolHandler);
30 }
31
32 public MNote(String title, MNoteProtocolHandler protocolHandler) {
33 super(title);
34 _protocolHandler = protocolHandler;
35 _protocolHandler.addNotificationListener(this);
36
37 addWindowListener(new WindowAdapter() {
38 public void windowClosing(WindowEvent e) {System.exit(0);}
39 });
40
41 JButton newNote = new JButton("Send MNote message");
42 newNote.addActionListener(new ActionListener() {
43 public void actionPerformed(ActionEvent e) {
44 String message = JOptionPane.showInputDialog(null, "Please enter your MNote message:", "Compose MNote!", JOptionPane.INFORMATION_MESSAGE);
45 if (message != null) {
46 _protocolHandler.sendNotification(message);
47 }
48 }
49 });
50
51 JPanel pane = new JPanel();
52
53 pane.add(newNote);
54
55 this.getContentPane().add(pane);
56 this.pack();
57 this.show();
58 }
59
60 public void acceptNotificationEvent(NotificationEvent ne) {
61 JOptionPane.showMessageDialog(this, "You have received a new MNote!\nMessage:\n" + ne.getMessage(), "New MNote!", JOptionPane.INFORMATION_MESSAGE);
62 }
63
64 private MNoteProtocolHandler _protocolHandler = null;
65 }