/**
* {@inheritDoc}
*
* <p>Implements {@link RegistrationStateChangeListener}. Notifies this instance that there has
* been a change in the <tt>RegistrationState</tt> of {@link #protocolProvider}. Subscribes this
* instance to {@link ColibriConferenceIQ}s as soon as <tt>protocolProvider</tt> is registered and
* unsubscribes it as soon as <tt>protocolProvider</tt> is unregistered.
*/
public void registrationStateChanged(RegistrationStateChangeEvent ev) {
RegistrationState registrationState = ev.getNewState();
if (RegistrationState.REGISTERED.equals(registrationState)) {
protocolProvider.getConnection().addPacketListener(this, this);
} else if (RegistrationState.UNREGISTERED.equals(registrationState)) {
XMPPConnection connection = protocolProvider.getConnection();
if (connection != null) connection.removePacketListener(this);
}
}
/**
* 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();
}