According to
http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/xmpp/XMPPService.html#getPresence%28com.google.appengine.api.xmpp.JID%29
XMPPService.getPresence is deprecated.
Fair enough, I can use XMPPService.sendPresence(jid, PresenceType.PROBE,
null, null) and handle the response asynchronously with
/_ah/xmpp/presence/available/ and /_ah/xmpp/presence/unavailable/
However, I've found that most of my offline users and a couple of my online
users are not replying to the presence probe. Is the probe guaranteed to to
receive a response presence? Or do I have to manually perform a timeout
check and assume that no-response means unavailable? If that's the case I'd
rather stick to using the deprecated getPresence() method and hope it
doesn't get removed in the future.
This is my code:
Collection<String> users = getUsers();
for (String u : users) xmpp.sendPresence(new JID(u + "@gmail.com"),
PresenceType.PROBE, null, null);
I've confirmed that I receive available and unavailable presences from
these users when they log in or logout, but they do not respond to presence
probes when they are offline.
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