/**
* Notifies this instance that there was a change in the value of a property of an
* <tt>Endpoint</tt> participating in this multipoint conference.
*
* @param endpoint the <tt>Endpoint</tt> which is the source of the event/notification and is
* participating in this multipoint conference
* @param ev a <tt>PropertyChangeEvent</tt> which specifies the source of the event/notification,
* the name of the property and the old and new values of that property
*/
private void endpointPropertyChange(Endpoint endpoint, PropertyChangeEvent ev) {
String propertyName = ev.getPropertyName();
boolean maybeRemoveEndpoint;
if (Endpoint.SCTP_CONNECTION_PROPERTY_NAME.equals(propertyName)) {
// The SctpConnection of/associated with an Endpoint has changed. We
// may want to fire initial events over that SctpConnection (as soon
// as it is ready).
SctpConnection oldValue = (SctpConnection) ev.getOldValue();
SctpConnection newValue = (SctpConnection) ev.getNewValue();
endpointSctpConnectionChanged(endpoint, oldValue, newValue);
// The SctpConnection may have expired.
maybeRemoveEndpoint = (newValue == null);
} else if (Endpoint.CHANNELS_PROPERTY_NAME.equals(propertyName)) {
// An RtpChannel may have expired.
maybeRemoveEndpoint = true;
} else {
maybeRemoveEndpoint = false;
}
if (maybeRemoveEndpoint) {
// It looks like there is a chance that the Endpoint may have
// expired. Endpoints are held by this Conference via WeakReferences
// but WeakReferences are unpredictable. We have functionality
// though which could benefit from discovering that an Endpoint has
// expired as quickly as possible (e.g. ConferenceSpeechActivity).
// Consequently, try to expedite the removal of expired Endpoints.
if (endpoint.getSctpConnection() == null && endpoint.getChannelCount(null) == 0) {
removeEndpoint(endpoint);
}
}
}
/**
* Function called when an audio device is plugged or unplugged.
*
* @param event The property change event which may concern the audio device.
*/
public void propertyChange(PropertyChangeEvent event) {
if (DeviceConfiguration.PROP_AUDIO_SYSTEM_DEVICES.equals(event.getPropertyName())) {
NotificationService notificationService = getNotificationService();
if (notificationService != null) {
// Registers only once to the popup message notification
// handler.
if (!isRegisteredToPopupMessageListener) {
isRegisteredToPopupMessageListener = true;
managePopupMessageListenerRegistration(true);
}
// Fires the popup notification.
ResourceManagementService resources = NeomediaActivator.getResources();
Map<String, Object> extras = new HashMap<String, Object>();
extras.put(NotificationData.POPUP_MESSAGE_HANDLER_TAG_EXTRA, this);
notificationService.fireNotification(
DEVICE_CONFIGURATION_HAS_CHANGED,
resources.getI18NString("impl.media.configform" + ".AUDIO_DEVICE_CONFIG_CHANGED"),
resources.getI18NString(
"impl.media.configform" + ".AUDIO_DEVICE_CONFIG_MANAGMENT_CLICK"),
null,
extras);
}
}
}
/**
* Notifies this instance that there was a change in the value of a property of {@link
* #speechActivity}.
*
* @param ev a <tt>PropertyChangeEvent</tt> which specifies the source of the event/notification,
* the name of the property and the old and new values of that property
*/
private void speechActivityPropertyChange(PropertyChangeEvent ev) {
String propertyName = ev.getPropertyName();
if (ConferenceSpeechActivity.DOMINANT_ENDPOINT_PROPERTY_NAME.equals(propertyName)) {
// The dominant speaker in this Conference has changed. We will
// likely want to notify the Endpoints participating in this
// Conference.
dominantSpeakerChanged();
} else if (ConferenceSpeechActivity.ENDPOINTS_PROPERTY_NAME.equals(propertyName)) {
speechActivityEndpointsChanged();
}
}
/**
* This method gets called when a property we're interested in is about to change. In case we
* don't like the new value we throw a PropertyVetoException to prevent the actual change from
* happening.
*
* @param evt a <tt>PropertyChangeEvent</tt> object describing the event source and the property
* that will change.
* @exception PropertyVetoException if we don't want the change to happen.
*/
public void vetoableChange(PropertyChangeEvent evt) throws PropertyVetoException {
if (evt.getPropertyName().equals(PROP_STUN_SERVER_ADDRESS)) {
// make sure that we have a valid fqdn or ip address.
// null or empty port is ok since it implies turning STUN off.
if (evt.getNewValue() == null) return;
String host = evt.getNewValue().toString();
if (host.trim().length() == 0) return;
boolean ipv6Expected = false;
if (host.charAt(0) == '[') {
// This is supposed to be an IPv6 litteral
if (host.length() > 2 && host.charAt(host.length() - 1) == ']') {
host = host.substring(1, host.length() - 1);
ipv6Expected = true;
} else {
// This was supposed to be a IPv6 address, but it's not!
throw new PropertyVetoException("Invalid address string" + host, evt);
}
}
for (int i = 0; i < host.length(); i++) {
char c = host.charAt(i);
if (Character.isLetterOrDigit(c)) continue;
if ((c != '.' && c != ':') || (c == '.' && ipv6Expected) || (c == ':' && !ipv6Expected))
throw new PropertyVetoException(host + " is not a valid address nor host name", evt);
}
} // is prop_stun_server_address
else if (evt.getPropertyName().equals(PROP_STUN_SERVER_PORT)) {
// null or empty port is ok since it implies turning STUN off.
if (evt.getNewValue() == null) return;
String port = evt.getNewValue().toString();
if (port.trim().length() == 0) return;
try {
Integer.valueOf(evt.getNewValue().toString());
} catch (NumberFormatException ex) {
throw new PropertyVetoException(port + " is not a valid port! " + ex.getMessage(), evt);
}
}
}
/**
* Notifies this instance that there was a change in the value of a property of an object in which
* this instance is interested.
*
* @param ev a <tt>PropertyChangeEvent</tt> which specifies the object of interest, the name of
* the property and the old and new values of that property
*/
@Override
public void propertyChange(PropertyChangeEvent ev) {
Object source = ev.getSource();
if (isExpired()) {
// An expired Conference is to be treated like a null Conference
// i.e. it does not handle any PropertyChangeEvents. If possible,
// make sure that no further PropertyChangeEvents will be delivered
// to this Conference.
if (source instanceof PropertyChangeNotifier) {
((PropertyChangeNotifier) source).removePropertyChangeListener(propertyChangeListener);
}
} else if (source == speechActivity) {
speechActivityPropertyChange(ev);
} else if (source instanceof Endpoint) {
// We care about PropertyChangeEvents from Endpoint but only if the
// Endpoint in question is still participating in this Conference.
Endpoint endpoint = getEndpoint(((Endpoint) source).getID());
if (endpoint != null) endpointPropertyChange(endpoint, ev);
}
}
/**
* Notifies this instance about a change in the value of a property of a source which of interest
* to this instance. For example, <tt>OneToOneCallPeerPanel</tt> updates its user
* interface-related properties upon changes in the value of the {@link
* CallContainer#PROP_FULL_SCREEN} property of its associated {@link #callRenderer}.
*
* @param ev a <tt>PropertyChangeEvent</tt> which identifies the source, the name of the property
* and the old and new values
*/
public void propertyChange(PropertyChangeEvent ev) {
if (CallContainer.PROP_FULL_SCREEN.equals(ev.getPropertyName())) updateViewFromModel();
}