There is a unsolveable race condition between the connection state and
sendPacket(), i.e. the connection could go down, right after the
method calling sendPacket is called, but before sendPacket() is
invoked. Before this change, sendPacket() has thrown an unchecked
IllegalStateException, which could be ignored by the Smack user, who
would also not notice the race condition. We have decided to throw a
checked Exception in this case now, to make the Smack user aware of
this situation.
SMACK-426
Also remove the Exceptions from the signature of getRoster().
Extend ConnectionListener with connected() and authenticated()
callbacks, required by Roster to be notified so that the Roster can be
loaded *after* login.
SmackException (and it's subclasses) is for all errors/exceptions not
defined by any XMPP specification. XMPPException is now an abstract
class for all errors defined by the XMPP specifications.
Methods that involve an IQ exchange now either return the result, which
is obtained by IQ response, or they throw an XMPPErrorException if an IQ
error was the result of the IQ set/get. If there was no response from
the server within the default packet timeout, a NoResponseException will
be thrown.
XMPP SASL errors are now also reported accordingly.
SMACK-426
Instead of repeating the same pattern, when sending an IQ get/set packet
and collecting the response
PacketFilter filter = new PacketIDFilter(request.getPacketID()),
PacketCollector collector = connection.createPacketCollector(filter);
connection.sendPacket(reg);
IQ result = (IQ)collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
// Stop queuing results
collector.cancel();
if (result == null) {
throw new XMPPException("No response from server.");
}
else if (result.getType() == IQ.Type.ERROR) {
throw new XMPPException(result.getError());
}
the API got redesigned, so that the above code block can be replaced
with
Packet result = connection.createPacketCollectorAndSend(request).nextResultOrThrow();
Florian Schmaus
Lars Noschinski