@Override
public void presenceChanged(final org.jivesoftware.smack.packet.Presence presence) {
String localJID;
try {
localJID = getLocalJid();
} catch (FriendException e) {
localJID = null;
}
if (!presence.getFrom().equals(localJID)) {
XMPPFriendImpl friend = getFriend(presence);
if (friend != null) {
LOG.debugf("presence from {0} changed to {1}", presence.getFrom(), presence.getType());
// synchronize to avoid updates or presences from being lost
// better to replace that with a lock object private to this
// connection class
synchronized (friend) {
if (presence.getType().equals(org.jivesoftware.smack.packet.Presence.Type.available)) {
if (!friend.getPresences().containsKey(presence.getFrom())) {
addNewPresence(friend, presence);
} else {
updatePresence(friend, presence);
}
} else if (presence
.getType()
.equals(org.jivesoftware.smack.packet.Presence.Type.unavailable)) {
PresenceImpl p = (PresenceImpl) friend.getPresence(presence.getFrom());
if (p != null) {
p.update(presence);
friend.removePresense(p);
}
}
}
} else {
LOG.debugf("no friend for presence {0}", presence.getFrom());
}
}
}
private void addNewPresence(
final XMPPFriendImpl friend, final org.jivesoftware.smack.packet.Presence presence) {
final PresenceImpl presenceImpl = new PresenceImpl(presence, friend, featureSupport);
presenceImpl.addTransport(AddressFeature.class, addressIQListener);
presenceImpl.addTransport(AuthTokenFeature.class, authTokenIQListener);
presenceImpl.addTransport(ConnectBackRequestFeature.class, connectRequestIQListener);
presenceImpl.addTransport(LibraryChangedNotifierFeature.class, libraryChangedIQListener);
presenceImpl.addTransport(FileOfferFeature.class, fileTransferIQListener);
friend.addPresense(presenceImpl);
}
private void updatePresence(
XMPPFriendImpl friend, org.jivesoftware.smack.packet.Presence presence) {
PresenceImpl currentPresence = (PresenceImpl) friend.getPresences().get(presence.getFrom());
currentPresence.update(presence);
friend.updatePresence(currentPresence);
}