/**
* Notifies this instance that {@link #speechActivity} has identified a speaker switch event in
* this multipoint conference and there is now a new dominant speaker.
*/
private void dominantSpeakerChanged() {
Endpoint dominantSpeaker = speechActivity.getDominantEndpoint();
if (logger.isTraceEnabled()) {
logger.trace(
"The dominant speaker in conference "
+ getID()
+ " is now the endpoint "
+ ((dominantSpeaker == null) ? "(null)" : dominantSpeaker.getID())
+ ".");
}
if (dominantSpeaker != null) {
broadcastMessageOnDataChannels(createDominantSpeakerEndpointChangeEvent(dominantSpeaker));
if (isRecording() && (recorderEventHandler != null))
recorderEventHandler.dominantSpeakerChanged(dominantSpeaker);
}
}
/**
* Notifies this instance that a specific <tt>SctpConnection</tt> has become ready i.e. connected
* to a/the remote peer and operational.
*
* @param sctpConnection the <tt>SctpConnection</tt> which has become ready and is the cause of
* the method invocation
*/
private void sctpConnectionReady(SctpConnection sctpConnection) {
/*
* We want to fire initial events over the SctpConnection as soon as it
* is ready, we do not want to fire them multiple times i.e. every time
* the SctpConnection becomes ready.
*/
sctpConnection.removeChannelListener(webRtcDataStreamListener);
if (!isExpired() && !sctpConnection.isExpired() && sctpConnection.isReady()) {
Endpoint endpoint = sctpConnection.getEndpoint();
if (endpoint != null) endpoint = getEndpoint(endpoint.getID());
if (endpoint != null) {
/*
* It appears that this Conference, the SctpConnection and the
* Endpoint are in states which allow them to fire the initial
* events.
*/
Endpoint dominantSpeaker = speechActivity.getDominantEndpoint();
if (dominantSpeaker != null) {
try {
endpoint.sendMessageOnDataChannel(
createDominantSpeakerEndpointChangeEvent(dominantSpeaker));
} catch (IOException e) {
logger.error("Failed to send message on data channel.", e);
}
}
/*
* Determining the instant at which an SctpConnection associated
* with an Endpoint becomes ready (i.e. connected to the remote
* peer and operational) is a multi-step ordeal. The Conference
* class implements the procedure so do not make other classes
* implement it as well.
*/
endpoint.sctpConnectionReady(sctpConnection);
}
}
}