package org.jivesoftware.smackx;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.PacketCollector;
import org.jivesoftware.smack.SmackConfiguration;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.PacketIDFilter;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smackx.packet.SharedGroupsInfo;
import java.util.List;
/**
* A SharedGroupManager provides services for discovering the shared groups where a user belongs.<p>
*
* Important note: This functionality is not part of the XMPP spec and it will only work
* with Wildfire.
*
* @author Gaston Dombiak
*/
public class SharedGroupManager {
/**
* Returns the collection that will contain the name of the shared groups where the user
* logged in with the specified session belongs.
*
* @param connection connection to use to get the user's shared groups.
* @return collection with the shared groups' name of the logged user.
*/
public static List getSharedGroups(XMPPConnection connection) throws XMPPException {
// Discover the shared groups of the logged user
SharedGroupsInfo info = new SharedGroupsInfo();
info.setType(IQ.Type.GET);
// Create a packet collector to listen for a response.
PacketCollector collector =
connection.createPacketCollector(new PacketIDFilter(info.getPacketID()));
connection.sendPacket(info);
// Wait up to 5 seconds for a result.
IQ result = (IQ) collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
// Stop queuing results
collector.cancel();
if (result == null) {
throw new XMPPException("No response from the server.");
}
if (result.getType() == IQ.Type.ERROR) {
throw new XMPPException(result.getError());
}
return ((SharedGroupsInfo) result).getGroups();
}
}