/**
* Returns the number of offline messages for the user of the connection.
*
* @return the number of offline messages for the user of the connection.
* @throws XMPPException If the user is not allowed to make this request or the server does not
* support offline message retrieval.
*/
public int getMessageCount() throws XMPPException {
DiscoverInfo info =
ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(null, namespace);
Form extendedInfo = Form.getFormFrom(info);
if (extendedInfo != null) {
String value = (String) extendedInfo.getField("number_of_messages").getValues().next();
return Integer.parseInt(value);
}
return 0;
}