private static ADObjectId FindServerIdWithClientAccess(ITopologyConfigurationSession adSession, ADObjectId mountedSiteId, ADObjectId preferredServerId)
{
ADObjectId adobjectId = null;
List <ADObjectId> list = new List <ADObjectId>(8);
foreach (KeyValuePair <Server, ExchangeRpcClientAccess> keyValuePair in ExchangeRpcClientAccess.GetServersWithRpcClientAccessEnabled(ExchangeRpcClientAccess.GetAllPossibleServers(adSession, mountedSiteId), ExchangeRpcClientAccess.GetAll(adSession)))
{
if ((keyValuePair.Value.Responsibility & RpcClientAccessResponsibility.Mailboxes) != RpcClientAccessResponsibility.None)
{
if (preferredServerId != null && preferredServerId.Equals(keyValuePair.Key.Id))
{
adobjectId = keyValuePair.Key.Id;
break;
}
list.Add(keyValuePair.Key.Id);
}
}
if (adobjectId == null && list.Count > 0)
{
adobjectId = list[0];
if (list.Count > 1)
{
adobjectId = list[(Environment.TickCount & int.MaxValue) % list.Count];
}
}
return(adobjectId);
}
internal string FindRpcClientAccessArrayOrServer(ITopologyConfigurationSession session, ADObjectId localServerId)
{
ADSite localSite = session.GetLocalSite();
if (localSite == null)
{
return(null);
}
ClientAccessArray[] array = session.Find <ClientAccessArray>(null, QueryScope.SubTree, QueryFilter.AndTogether(new QueryFilter[]
{
this.GetSiteFilter(localSite.Id),
ClientAccessArray.PriorTo15ExchangeObjectVersionFilter
}), null, 2);
if (array.Length > 0)
{
return(array[0].ExchangeLegacyDN);
}
List <string> list = new List <string>();
foreach (KeyValuePair <Server, ExchangeRpcClientAccess> keyValuePair in ExchangeRpcClientAccess.GetServersWithRpcClientAccessEnabled(ExchangeRpcClientAccess.GetAllPossibleServers(session, localSite.Id), ExchangeRpcClientAccess.GetAll(session)))
{
if ((keyValuePair.Value.Responsibility & RpcClientAccessResponsibility.Mailboxes) != RpcClientAccessResponsibility.None)
{
if (localServerId.Equals(keyValuePair.Key.Id))
{
return(keyValuePair.Key.ExchangeLegacyDN);
}
list.Add(keyValuePair.Key.ExchangeLegacyDN);
}
}
if (list.Count == 0)
{
return(null);
}
return(NewRpcClientAccess.SelectServerWithEqualProbability(list));
}
