public static TryCatch <IQueryPipelineStage> MonadicCreateTopStage(
int takeCount,
CosmosElement requestContinuationToken,
CancellationToken cancellationToken,
MonadicCreatePipelineStage monadicCreatePipelineStage) => ComputeTakeQueryPipelineStage.MonadicCreate(
takeCount,
requestContinuationToken,
cancellationToken,
monadicCreatePipelineStage);
private static TryCatch <IQueryPipelineStage> MonadicCreate(
int takeCount,
CosmosElement requestContinuationToken,
CancellationToken cancellationToken,
MonadicCreatePipelineStage monadicCreatePipelineStage)
{
if (takeCount < 0)
{
throw new ArgumentException($"{nameof(takeCount)}: {takeCount} must be a non negative number.");
}
if (monadicCreatePipelineStage == null)
{
throw new ArgumentNullException(nameof(monadicCreatePipelineStage));
}
TakeContinuationToken takeContinuationToken;
if (requestContinuationToken != null)
{
if (!TakeContinuationToken.TryParse(requestContinuationToken, out takeContinuationToken))
{
return(TryCatch <IQueryPipelineStage> .FromException(
new MalformedContinuationTokenException(
$"Malformed {nameof(TakeContinuationToken)}: {requestContinuationToken}.")));
}
}
else
{
takeContinuationToken = new TakeContinuationToken(takeCount, sourceToken: null);
}
if (takeContinuationToken.TakeCount > takeCount)
{
return(TryCatch <IQueryPipelineStage> .FromException(
new MalformedContinuationTokenException(
$"{nameof(TakeContinuationToken.TakeCount)} in {nameof(TakeContinuationToken)}: {requestContinuationToken}: {takeContinuationToken.TakeCount} can not be greater than the limit count in the query: {takeCount}.")));
}
TryCatch <IQueryPipelineStage> tryCreateSource = monadicCreatePipelineStage(takeContinuationToken.SourceToken, cancellationToken);
if (tryCreateSource.Failed)
{
return(tryCreateSource);
}
IQueryPipelineStage stage = new ComputeTakeQueryPipelineStage(
tryCreateSource.Result,
cancellationToken,
takeContinuationToken.TakeCount);
return(TryCatch <IQueryPipelineStage> .FromResult(stage));
}