public static TenantRelocationState GetTenantRelocationState(string tenantName, PartitionId partitionId, out bool isSourceTenant, bool readThrough = false)
{
if (string.IsNullOrEmpty(tenantName))
{
throw new ArgumentNullException("tenantName");
}
if (!ForestTenantRelocationsCache.IsTenantRelocationAllowed(partitionId.ForestFQDN))
{
isSourceTenant = true;
return(new TenantRelocationState(partitionId.ForestFQDN, TenantRelocationStatus.NotStarted));
}
TenantRelocationStateCache tenantRelocationStateCache = TenantRelocationStateCache.GetInstance();
ExpiringTenantRelocationStateValue expiringTenantRelocationStateValue;
if (!tenantRelocationStateCache.tenantRelocationStates.TryGetValue(tenantName, out expiringTenantRelocationStateValue) || expiringTenantRelocationStateValue.Expired || readThrough || TenantRelocationStateCache.IgnoreRelocationTimeConstraints())
{
TenantRelocationState tenantRelocationState = TenantRelocationStateCache.LoadTenantRelocationState(tenantName, partitionId);
ExTraceGlobals.TenantRelocationTracer.TraceDebug(0L, "TenantRelocationStateCache::GetTenantRelocationState(): Inserting new TenantRelocationState value for tenant {0} to the cache: SourceForestFQDN={1}, SourceForestState={2}, TargetForestFQDN={3}, TargetForestState={4}, TargetOrganizationId={5}", new object[]
{
tenantName,
tenantRelocationState.SourceForestFQDN,
tenantRelocationState.SourceForestState,
tenantRelocationState.TargetForestFQDN,
tenantRelocationState.TargetForestState,
(tenantRelocationState.TargetOrganizationId != null) ? tenantRelocationState.TargetOrganizationId.ToString() : "<null>"
});
expiringTenantRelocationStateValue = new ExpiringTenantRelocationStateValue(tenantRelocationState);
tenantRelocationStateCache.AddOrUpdate(tenantName, expiringTenantRelocationStateValue);
}
if (expiringTenantRelocationStateValue.Value.TargetOrganizationId == null || expiringTenantRelocationStateValue.Value.TargetOrganizationId.OrganizationalUnit == null)
{
isSourceTenant = true;
}
else if (expiringTenantRelocationStateValue.Value.TargetOrganizationId.PartitionId != partitionId)
{
isSourceTenant = true;
}
else if (expiringTenantRelocationStateValue.Value.SourceForestFQDN == expiringTenantRelocationStateValue.Value.TargetForestFQDN)
{
isSourceTenant = (tenantName != expiringTenantRelocationStateValue.Value.TargetOrganizationId.OrganizationalUnit.Name);
}
else
{
isSourceTenant = false;
}
return(expiringTenantRelocationStateValue.Value);
}
private void AddOrUpdate(string tenantName, ExpiringTenantRelocationStateValue state)
{
lock (this.syncObject)
{
if (this.tenantRelocationStates.Count >= 25000)
{
int num = this.tenantRelocationStates.Count - 22500;
List <string> list = new List <string>(num);
foreach (KeyValuePair <string, ExpiringTenantRelocationStateValue> keyValuePair in this.tenantRelocationStates)
{
if (keyValuePair.Value.Expired)
{
list.Add(keyValuePair.Key);
}
}
int num2 = num - list.Count;
if (num2 > 0)
{
foreach (KeyValuePair <string, ExpiringTenantRelocationStateValue> keyValuePair2 in this.tenantRelocationStates)
{
if (!keyValuePair2.Value.Expired)
{
list.Add(keyValuePair2.Key);
if (--num2 <= 0)
{
break;
}
}
}
}
foreach (string key in list)
{
this.tenantRelocationStates.Remove(key);
}
}
this.tenantRelocationStates[tenantName] = state;
}
}
