/**
* Utility method throwing an exception if the stack is not properly initialized.
*
* @throws java.lang.IllegalStateException if the underlying stack is not registered and
* initialized.
*/
private void assertConnected() throws IllegalStateException {
if (jabberProvider == null)
throw new IllegalStateException(
"The provider must be non-null and signed on the "
+ "service before being able to send a file.");
else if (!jabberProvider.isRegistered()) {
// if we are not registered but the current status is online
// change the current status
if (opSetPersPresence.getPresenceStatus().isOnline()) {
opSetPersPresence.fireProviderStatusChangeEvent(
opSetPersPresence.getPresenceStatus(),
jabberProvider.getJabberStatusEnum().getStatus(JabberStatusEnum.OFFLINE));
}
throw new IllegalStateException(
"The provider must be signed on the service before " + "being able to send a file.");
}
}
