* @return a collection of <code>Affiliate</code> that have the specified room affiliation.
* @throws XMPPException if an error occured while performing the request to the server or you
* don't have enough privileges to get this information.
*/
private Collection<Affiliate> getAffiliatesByAdmin(String affiliation) throws XMPPException {
MUCAdmin iq = new MUCAdmin();
iq.setTo(room);
iq.setType(IQ.Type.GET);
// Set the specified affiliation. This may request the list of owners/admins/members/outcasts.
MUCAdmin.Item item = new MUCAdmin.Item(affiliation, null);
iq.addItem(item);
// Wait for a response packet back from the server.
PacketFilter responseFilter = new PacketIDFilter(iq.getPacketID());
PacketCollector response = connection.createPacketCollector(responseFilter);
// Send the request to the server.
connection.sendPacket(iq);
// Wait up to a certain number of seconds for a reply.
MUCAdmin answer = (MUCAdmin) response.nextResult(SmackConfiguration.getPacketReplyTimeout());
// Stop queuing results
response.cancel();
if (answer == null) {
throw new XMPPException("No response from server.");
}
else if (answer.getError() != null) {
throw new XMPPException(answer.getError());
}
// Get the list of affiliates from the server's answer
List<Affiliate> affiliates = new ArrayList<Affiliate>();
for (Iterator<MUCAdmin.Item> it = answer.getItems(); it.hasNext();) {
affiliates.add(new Affiliate(it.next()));
}
return affiliates;
}