*
* @exception ConnectException If the admin connection is closed or broken.
* @exception AdminException If the request fails.
*/
public Topic getHierarchicalFather() throws ConnectException, AdminException {
GetFatherRequest request = new GetFatherRequest(agentId);
GetFatherReply reply = (GetFatherReply) doRequest(request);
if (reply.getFatherId() == null)
return null;
return new Topic(reply.getFatherId());