/**
* Closes given {@link #transportManagers} of this <tt>Conference</tt> and removes corresponding
* channel bundle.
*/
void closeTransportManager(TransportManager transportManager) {
synchronized (transportManagers) {
for (Iterator<IceUdpTransportManager> i = transportManagers.values().iterator();
i.hasNext(); ) {
if (i.next() == transportManager) {
i.remove();
// Presumably, we have a single association for
// transportManager.
break;
}
}
// Close manager
try {
transportManager.close();
} catch (Throwable t) {
logger.warn(
"Failed to close an IceUdpTransportManager of" + " conference " + getID() + "!", t);
// The whole point of explicitly closing the
// transportManagers of this Conference is to prevent memory
// leaks. Hence, it does not make sense to possibly leave
// TransportManagers open because a TransportManager has
// failed to close.
if (t instanceof InterruptedException) Thread.currentThread().interrupt();
else if (t instanceof ThreadDeath) throw (ThreadDeath) t;
}
}
}
/**
* Expires this <tt>Conference</tt>, its <tt>Content</tt>s and their respective <tt>Channel</tt>s.
* Releases the resources acquired by this instance throughout its life time and prepares it to be
* garbage collected.
*/
public void expire() {
synchronized (this) {
if (expired) return;
else expired = true;
}
EventAdmin eventAdmin = videobridge.getEventAdmin();
if (eventAdmin != null) eventAdmin.sendEvent(EventFactory.conferenceExpired(this));
setRecording(false);
if (recorderEventHandler != null) {
recorderEventHandler.close();
recorderEventHandler = null;
}
Videobridge videobridge = getVideobridge();
try {
videobridge.expireConference(this);
} finally {
// Expire the Contents of this Conference.
for (Content content : getContents()) {
try {
content.expire();
} catch (Throwable t) {
logger.warn(
"Failed to expire content " + content.getName() + " of conference " + getID() + "!",
t);
if (t instanceof InterruptedException) Thread.currentThread().interrupt();
else if (t instanceof ThreadDeath) throw (ThreadDeath) t;
}
}
// Close the transportManagers of this Conference. Normally, there
// will be no TransportManager left to close at this point because
// all Channels have expired and the last Channel to be removed from
// a TransportManager closes the TransportManager. However, a
// Channel may have expired before it has learned of its
// TransportManager and then the TransportManager will not close.
closeTransportManagers();
if (logger.isInfoEnabled()) {
logger.info(
"Expired conference " + getID() + ". " + videobridge.getConferenceCountString());
}
}
}
/**
* Implements {@link PacketListener}. Notifies this instance that a specific {@link Packet} (which
* this instance has already expressed interest into by returning <tt>true</tt> from {@link
* #accept(Packet)}) has been received.
*
* @param packet the <tt>Packet</tt> which has been received and which this instance is given a
* chance to process
*/
public void processPacket(Packet packet) {
/*
* As we do elsewhere, acknowledge the receipt of the Packet first and
* then go about our business with it.
*/
IQ iq = (IQ) packet;
if (iq.getType() == IQ.Type.SET)
protocolProvider.getConnection().sendPacket(IQ.createResultIQ(iq));
/*
* Now that the acknowledging is out of the way, do go about our
* business with the Packet.
*/
ColibriConferenceIQ conferenceIQ = (ColibriConferenceIQ) iq;
boolean interrupted = false;
try {
processColibriConferenceIQ(conferenceIQ);
} catch (Throwable t) {
logger.error(
"An error occurred during the processing of a " + packet.getClass().getName() + " packet",
t);
if (t instanceof InterruptedException) {
/*
* We cleared the interrupted state of the current Thread by
* catching the InterruptedException. However, we do not really
* care whether the current Thread has been interrupted - we
* caught the InterruptedException because we want to swallow
* any Throwable. Consequently, we should better restore the
* interrupted state.
*/
interrupted = true;
} else if (t instanceof ThreadDeath) throw (ThreadDeath) t;
}
if (interrupted) Thread.currentThread().interrupt();
}