private static ISessionToken ResolvePartitionLocalSessionToken(SessionContainerState self, DocumentServiceRequest request, string partitionKeyRangeId)
{
return(SessionTokenHelper.ResolvePartitionLocalSessionToken(request, partitionKeyRangeId, SessionContainer.GetPartitionKeyRangeIdToTokenMap(self, request)));
}
private static string ResolvePartitionLocalSessionTokenForGateway(SessionContainerState self,
DocumentServiceRequest request,
string partitionKeyRangeId)
{
ConcurrentDictionary <string, ISessionToken> partitionKeyRangeIdToTokenMap = SessionContainer.GetPartitionKeyRangeIdToTokenMap(self, request);
if (partitionKeyRangeIdToTokenMap != null)
{
if (partitionKeyRangeIdToTokenMap.TryGetValue(partitionKeyRangeId, out ISessionToken sessionToken))
{
return(partitionKeyRangeId + SessionContainer.sessionTokenSeparator + sessionToken.ConvertToString());
}
else if (request.RequestContext.ResolvedPartitionKeyRange.Parents != null)
{
ISessionToken parentSessionToken = null;
for (int parentIndex = request.RequestContext.ResolvedPartitionKeyRange.Parents.Count - 1; parentIndex >= 0; parentIndex--)
{
if (partitionKeyRangeIdToTokenMap.TryGetValue(request.RequestContext.ResolvedPartitionKeyRange.Parents[parentIndex],
out sessionToken))
{
// A partition can have more than 1 parent (merge). In that case, we apply Merge to generate a token with both parent's max LSNs
parentSessionToken = parentSessionToken != null?parentSessionToken.Merge(sessionToken) : sessionToken;
}
}
// When we don't have the session token for a partition, we can leverage the session token of the parent(s)
if (parentSessionToken != null)
{
return(partitionKeyRangeId + SessionContainer.sessionTokenSeparator + parentSessionToken.ConvertToString());
}
}
}
return(null);
}
private static string ResolveGlobalSessionToken(SessionContainerState self, DocumentServiceRequest request)
{
ConcurrentDictionary <string, ISessionToken> partitionKeyRangeIdToTokenMap = SessionContainer.GetPartitionKeyRangeIdToTokenMap(self, request);
if (partitionKeyRangeIdToTokenMap != null)
{
return(SessionContainer.GetSessionTokenString(partitionKeyRangeIdToTokenMap));
}
return(string.Empty);
}
private static string ResolvePartitionLocalSessionTokenForGateway(SessionContainerState self,
DocumentServiceRequest request,
string partitionKeyRangeId)
{
ConcurrentDictionary <string, ISessionToken> partitionKeyRangeIdToTokenMap = SessionContainer.GetPartitionKeyRangeIdToTokenMap(self, request);
if (partitionKeyRangeIdToTokenMap != null)
{
if (partitionKeyRangeIdToTokenMap.TryGetValue(partitionKeyRangeId, out ISessionToken sessionToken))
{
return(partitionKeyRangeId + ":" + sessionToken.ConvertToString());
}
else if (request.RequestContext.ResolvedPartitionKeyRange.Parents != null)
{
for (int parentIndex = request.RequestContext.ResolvedPartitionKeyRange.Parents.Count - 1; parentIndex >= 0; parentIndex--)
{
if (partitionKeyRangeIdToTokenMap.TryGetValue(request.RequestContext.ResolvedPartitionKeyRange.Parents[parentIndex],
out sessionToken))
{
return(partitionKeyRangeId + ":" + sessionToken.ConvertToString());
}
}
}
}
return(null);
}
