final User user = idToUserMap.remove(id);
ChannelEventListener listener = this.getEventListener();
if( listener != null ) {
PresenceChannelEventListener presenceListener = (PresenceChannelEventListener)listener;
presenceListener.userUnsubscribed(getName(), user);
}
}
@SuppressWarnings("rawtypes")
private static Map extractDataMapFrom(String message) {