private static List <ADObjectId> GetMasterServerIdsForDatabase(IFindAdObject <IADDatabaseAvailabilityGroup> dagLookup, IADDatabase database, out Exception exception)
{
IADToplogyConfigurationSession adSession = dagLookup.AdSession;
List <ADObjectId> list = new List <ADObjectId>(16);
exception = null;
try
{
ADObjectId masterServerOrAvailabilityGroup = database.MasterServerOrAvailabilityGroup;
if (masterServerOrAvailabilityGroup == null)
{
return(null);
}
if (masterServerOrAvailabilityGroup.IsDeleted)
{
ActiveManagerUtil.Tracer.TraceError <string, string>(0L, "GetMasterServerIdsForDatabase() for database '{0}' found the MasterServerOrAvailabilityGroup to be a link to a deleted object. Returning an empty collection. MasterServerOrAvailabilityGroup = [{1}]", database.Name, masterServerOrAvailabilityGroup.Name);
return(null);
}
IADDatabaseAvailabilityGroup iaddatabaseAvailabilityGroup = dagLookup.ReadAdObjectByObjectId(masterServerOrAvailabilityGroup);
if (iaddatabaseAvailabilityGroup != null)
{
list.AddRange(iaddatabaseAvailabilityGroup.Servers);
}
else
{
IADDatabase iaddatabase = adSession.ReadADObject <IADDatabase>(database.Id);
ADObjectId adobjectId = null;
if (iaddatabase != null)
{
adobjectId = iaddatabase.MasterServerOrAvailabilityGroup;
if (!masterServerOrAvailabilityGroup.Equals(adobjectId))
{
ActiveManagerUtil.Tracer.TraceDebug <ADObjectId, ADObjectId>(0L, "GetMasterServerIdsForDatabase() re-read the Database object and it made a difference. MasterServerOrDag was {0} and is now {1}", masterServerOrAvailabilityGroup, adobjectId);
iaddatabaseAvailabilityGroup = adSession.ReadADObject <IADDatabaseAvailabilityGroup>(adobjectId);
if (iaddatabaseAvailabilityGroup == null)
{
goto IL_165;
}
HashSet <string> hashSet = new HashSet <string>(StringComparer.OrdinalIgnoreCase);
foreach (string fqdn in iaddatabaseAvailabilityGroup.StoppedMailboxServers)
{
hashSet.Add(MachineName.GetNodeNameFromFqdn(fqdn));
}
using (MultiValuedProperty <ADObjectId> .Enumerator enumerator2 = iaddatabaseAvailabilityGroup.Servers.GetEnumerator())
{
while (enumerator2.MoveNext())
{
ADObjectId adobjectId2 = enumerator2.Current;
if (!hashSet.Contains(adobjectId2.Name))
{
list.Add(adobjectId2);
}
}
goto IL_165;
}
}
ActiveManagerUtil.Tracer.TraceDebug <ADObjectId>(0L, "GetMasterServerIdsForDatabase: re-reading the Database object made no difference. MasterServerOrDag is still {0}.", masterServerOrAvailabilityGroup);
}
IL_165:
if (iaddatabaseAvailabilityGroup == null && adobjectId != null)
{
IADServer iadserver = adSession.ReadMiniServer(adobjectId);
if (iadserver != null)
{
list.Add(adobjectId);
}
}
}
}
catch (DataValidationException ex)
{
exception = ex;
}
catch (ADTransientException ex2)
{
exception = ex2;
}
catch (ADOperationException ex3)
{
exception = ex3;
}
catch (ADTopologyUnexpectedException ex4)
{
exception = ex4;
}
catch (ADTopologyPermanentException ex5)
{
exception = ex5;
}
if (exception != null)
{
ActiveManagerUtil.Tracer.TraceDebug <Exception>(0L, "GetMasterServerIdsForDatabase() got exception: {0}", exception);
list = null;
}
return(list);
}