public static async Task <TryCatch <IDocumentQueryExecutionComponent> > TryCreateAsync(
                int offsetCount,
                CosmosElement continuationToken,
                Func <CosmosElement, Task <TryCatch <IDocumentQueryExecutionComponent> > > tryCreateSourceAsync)
            {
                if (tryCreateSourceAsync == null)
                {
                    throw new ArgumentNullException(nameof(tryCreateSourceAsync));
                }

                OffsetContinuationToken offsetContinuationToken;

                if (continuationToken != null)
                {
                    if (!OffsetContinuationToken.TryParse(continuationToken.ToString(), out offsetContinuationToken))
                    {
                        return(TryCatch <IDocumentQueryExecutionComponent> .FromException(
                                   new MalformedContinuationTokenException($"Invalid {nameof(SkipDocumentQueryExecutionComponent)}: {continuationToken}.")));
                    }
                }
                else
                {
                    offsetContinuationToken = new OffsetContinuationToken(offsetCount, null);
                }

                if (offsetContinuationToken.Offset > offsetCount)
                {
                    return(TryCatch <IDocumentQueryExecutionComponent> .FromException(
                               new MalformedContinuationTokenException("offset count in continuation token can not be greater than the offsetcount in the query.")));
                }

                CosmosElement sourceToken;

                if (offsetContinuationToken.SourceToken != null)
                {
                    TryCatch <CosmosElement> tryParse = CosmosElement.Monadic.Parse(offsetContinuationToken.SourceToken);
                    if (tryParse.Failed)
                    {
                        return(TryCatch <IDocumentQueryExecutionComponent> .FromException(
                                   new MalformedContinuationTokenException(
                                       message : $"source token: '{offsetContinuationToken.SourceToken ?? "<null>"}' is not valid.",
                                       innerException : tryParse.Exception)));
                    }

                    sourceToken = tryParse.Result;
                }
                else
                {
                    sourceToken = null;
                }

                return((await tryCreateSourceAsync(sourceToken))
                       .Try <IDocumentQueryExecutionComponent>((source) => new ClientSkipDocumentQueryExecutionComponent(
                                                                   source,
                                                                   offsetContinuationToken.Offset)));
            }
Esempio n. 2
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            public static TryCatch <IQueryPipelineStage> MonadicCreate(
                int offsetCount,
                CosmosElement continuationToken,
                CancellationToken cancellationToken,
                MonadicCreatePipelineStage monadicCreatePipelineStage)
            {
                if (monadicCreatePipelineStage == null)
                {
                    throw new ArgumentNullException(nameof(monadicCreatePipelineStage));
                }

                OffsetContinuationToken offsetContinuationToken;

                if (continuationToken != null)
                {
                    (bool parsed, OffsetContinuationToken parsedToken) = OffsetContinuationToken.TryParse(continuationToken);
                    if (!parsed)
                    {
                        return(TryCatch <IQueryPipelineStage> .FromException(
                                   new MalformedContinuationTokenException($"Invalid {nameof(SkipQueryPipelineStage)}: {continuationToken}.")));
                    }

                    offsetContinuationToken = parsedToken;
                }
                else
                {
                    offsetContinuationToken = new OffsetContinuationToken(offsetCount, null);
                }

                if (offsetContinuationToken.Offset > offsetCount)
                {
                    return(TryCatch <IQueryPipelineStage> .FromException(
                               new MalformedContinuationTokenException(
                                   "offset count in continuation token can not be greater than the offsetcount in the query.")));
                }

                TryCatch <IQueryPipelineStage> tryCreateSource = monadicCreatePipelineStage(offsetContinuationToken.SourceToken, cancellationToken);

                if (tryCreateSource.Failed)
                {
                    return(tryCreateSource);
                }

                IQueryPipelineStage stage = new ComputeSkipQueryPipelineStage(
                    tryCreateSource.Result,
                    cancellationToken,
                    offsetContinuationToken.Offset);

                return(TryCatch <IQueryPipelineStage> .FromResult(stage));
            }
            public static async Task <TryCatch <IDocumentQueryExecutionComponent> > TryCreateAsync(
                int offsetCount,
                CosmosElement continuationToken,
                Func <CosmosElement, Task <TryCatch <IDocumentQueryExecutionComponent> > > tryCreateSourceAsync)
            {
                if (tryCreateSourceAsync == null)
                {
                    throw new ArgumentNullException(nameof(tryCreateSourceAsync));
                }

                OffsetContinuationToken offsetContinuationToken;

                if (continuationToken != null)
                {
                    (bool parsed, OffsetContinuationToken parsedToken) = OffsetContinuationToken.TryParse(continuationToken);
                    if (!parsed)
                    {
                        return(TryCatch <IDocumentQueryExecutionComponent> .FromException(
                                   new MalformedContinuationTokenException($"Invalid {nameof(SkipDocumentQueryExecutionComponent)}: {continuationToken}.")));
                    }

                    offsetContinuationToken = parsedToken;
                }
                else
                {
                    offsetContinuationToken = new OffsetContinuationToken(offsetCount, null);
                }

                if (offsetContinuationToken.Offset > offsetCount)
                {
                    return(TryCatch <IDocumentQueryExecutionComponent> .FromException(
                               new MalformedContinuationTokenException("offset count in continuation token can not be greater than the offsetcount in the query.")));
                }

                return((await tryCreateSourceAsync(offsetContinuationToken.SourceToken))
                       .Try <IDocumentQueryExecutionComponent>((source) => new ComputeSkipDocumentQueryExecutionComponent(
                                                                   source,
                                                                   offsetContinuationToken.Offset)));
            }
Esempio n. 4
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        public static async Task <TryCatch <IDocumentQueryExecutionComponent> > TryCreateAsync(
            int offsetCount,
            string continuationToken,
            Func <string, Task <TryCatch <IDocumentQueryExecutionComponent> > > tryCreateSourceAsync)
        {
            if (tryCreateSourceAsync == null)
            {
                throw new ArgumentNullException(nameof(tryCreateSourceAsync));
            }

            OffsetContinuationToken offsetContinuationToken;

            if (continuationToken != null)
            {
                if (!OffsetContinuationToken.TryParse(continuationToken, out offsetContinuationToken))
                {
                    return(TryCatch <IDocumentQueryExecutionComponent> .FromException(
                               new Exception($"Invalid {nameof(SkipDocumentQueryExecutionComponent)}: {continuationToken}.")));
                }
            }
            else
            {
                offsetContinuationToken = new OffsetContinuationToken(offsetCount, null);
            }

            if (offsetContinuationToken.Offset > offsetCount)
            {
                return(TryCatch <IDocumentQueryExecutionComponent> .FromException(
                           new Exception("offset count in continuation token can not be greater than the offsetcount in the query.")));
            }

            return((await tryCreateSourceAsync(offsetContinuationToken.SourceToken))
                   .Try <IDocumentQueryExecutionComponent>((source) => new SkipDocumentQueryExecutionComponent(
                                                               source,
                                                               offsetContinuationToken.Offset)));
        }
Esempio n. 5
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            public static TryCatch <IQueryPipelineStage> MonadicCreate(
                int offsetCount,
                CosmosElement continuationToken,
                CancellationToken cancellationToken,
                MonadicCreatePipelineStage monadicCreatePipelineStage)
            {
                if (monadicCreatePipelineStage == null)
                {
                    throw new ArgumentNullException(nameof(monadicCreatePipelineStage));
                }

                OffsetContinuationToken offsetContinuationToken;

                if (continuationToken != null)
                {
                    if (!OffsetContinuationToken.TryParse(continuationToken.ToString(), out offsetContinuationToken))
                    {
                        return(TryCatch <IQueryPipelineStage> .FromException(
                                   new MalformedContinuationTokenException(
                                       $"Invalid {nameof(SkipQueryPipelineStage)}: {continuationToken}.")));
                    }
                }
                else
                {
                    offsetContinuationToken = new OffsetContinuationToken(offsetCount, null);
                }

                if (offsetContinuationToken.Offset > offsetCount)
                {
                    return(TryCatch <IQueryPipelineStage> .FromException(
                               new MalformedContinuationTokenException(
                                   "offset count in continuation token can not be greater than the offsetcount in the query.")));
                }

                CosmosElement sourceToken;

                if (offsetContinuationToken.SourceToken != null)
                {
                    TryCatch <CosmosElement> tryParse = CosmosElement.Monadic.Parse(offsetContinuationToken.SourceToken);
                    if (tryParse.Failed)
                    {
                        return(TryCatch <IQueryPipelineStage> .FromException(
                                   new MalformedContinuationTokenException(
                                       message : $"source token: '{offsetContinuationToken.SourceToken ?? "<null>"}' is not valid.",
                                       innerException : tryParse.Exception)));
                    }

                    sourceToken = tryParse.Result;
                }
                else
                {
                    sourceToken = null;
                }

                TryCatch <IQueryPipelineStage> tryCreateSource = monadicCreatePipelineStage(sourceToken, cancellationToken);

                if (tryCreateSource.Failed)
                {
                    return(tryCreateSource);
                }

                IQueryPipelineStage stage = new ClientSkipQueryPipelineStage(
                    tryCreateSource.Result,
                    cancellationToken,
                    offsetContinuationToken.Offset);

                return(TryCatch <IQueryPipelineStage> .FromResult(stage));
            }