private void register() {
if (session != null && session.isConnected()) {
onlineUsers.clear();
// get the current list
Message msg = session.sendMessage("", "list", "");
System.out.println("LIST: " + msg.getBody());
StringTokenizer st = new StringTokenizer(msg.getBody(), "\n");
while (st.hasMoreTokens()) {
onlineUsers.addElement(new HostItem(st.nextToken()));
}
session.postMessage("", "register", "");
}
}
public void receiveMsg(Message msg) {
// System.out.println(msg.getSubject() + " : " + msg.getBody());
String subject = msg.getSubject();
if (subject != null) {
if (subject.equals("online")) {
onlineUsers.addElement(new HostItem(msg.getBody()));
displayMessage(msg.getBody() + " : Online", onlineClientAttrSet);
} else if (subject.equals("offline")) {
onlineUsers.removeElement(new HostItem(msg.getBody()));
displayMessage(msg.getBody() + " : Offline", offlineClientAttrSet);
} else if (subject.equals("eavesdrop enabled")) {
Object[] values = jListOnlineUsers.getSelectedValues();
if (values == null) return;
for (int i = 0; i < values.length; i++) {
((HostItem) values[i]).eavesDroppingEnabled = true;
}
jListOnlineUsers.updateUI();
} else if (subject.equals("eavesdrop disabled")) {
Object[] values = jListOnlineUsers.getSelectedValues();
if (values == null) return;
for (int i = 0; i < values.length; i++) {
((HostItem) values[i]).eavesDroppingEnabled = false;
}
jListOnlineUsers.updateUI();
} else if (subject.equals("globaleavesdrop enabled")) {
displayMessage("Global Eavesdropping Enabled", onlineClientAttrSet);
} else if (subject.equals("globaleavesdrop disabled")) {
displayMessage("Global Eavesdropping Disabled", offlineClientAttrSet);
} else {
String to = msg.getTo();
String from = msg.getFrom() == null ? "server" : msg.getFrom();
String body = msg.getBody() != null ? msg.getBody() : "";
if (jTextFieldUser.getText().equals(to)) { // this message is sent to us
displayMessage(subject, from, body, incomingMsgAttrSet);
} else { // this is an eavesdrop message
displayMessage(subject, to, from, body, eavesdropAttrSet);
}
}
} else {
subject = "";
String to = msg.getTo();
String from = msg.getFrom() == null ? "server" : msg.getFrom();
String body = msg.getBody() != null ? msg.getBody() : "";
if (jTextFieldUser.getText().equals(to)) { // this message is sent to us
displayMessage(subject, from, body, incomingMsgAttrSet);
} else { // this is an eavesdrop message
displayMessage(subject, to, from, body, eavesdropAttrSet);
}
}
}
private void disconnect() {
if (session != null && session.isConnected()) {
session.disconnect();
}
jToggleButtonConnect.setSelected(false);
jToggleButtonConnect.setText("Connect");
jToggleButtonRegister.setSelected(false);
onlineUsers.clear();
jToggleButtonRegister.setText("Register");
}
public void addElement(Object o) {
Comparable a = (Comparable) o;
int i = 0;
for (i = 0; i < getSize(); i++) {
if (a.compareTo(getElementAt(i)) < 0) {
break;
}
}
super.add(i, o);
}
private void deregister() {
onlineUsers.clear();
if (session != null && session.isConnected()) {
session.postMessage("", "deregister", "");
}
}
public void setElements(Vector v) {
clear();
Object arr[] = v.toArray();
Arrays.sort(arr);
for (int i = 0; i < arr.length; i++) super.addElement(arr[i]);
}