/// <summary> /// Creates a PipelinedDocumentQueryExecutionContext. /// </summary> /// <param name="constructorParams">The parameters for constructing the base class.</param> /// <param name="collectionRid">The collection rid.</param> /// <param name="partitionedQueryExecutionInfo">The partitioned query execution info.</param> /// <param name="partitionKeyRanges">The partition key ranges.</param> /// <param name="initialPageSize">The initial page size.</param> /// <param name="requestContinuation">The request continuation.</param> /// <param name="cancellationToken">The cancellation token.</param> /// <returns>A task to await on, which in turn returns a PipelinedDocumentQueryExecutionContext.</returns> public static async Task <IDocumentQueryExecutionContext> CreateDocumentQueryExecutionContextAsync( DocumentQueryExecutionContextBase.InitParams constructorParams, string collectionRid, PartitionedQueryExecutionInfo partitionedQueryExecutionInfo, List <PartitionKeyRange> partitionKeyRanges, int initialPageSize, string requestContinuation, CancellationToken cancellationToken) { DefaultTrace.TraceInformation( string.Format( CultureInfo.InvariantCulture, "{0}, CorrelatedActivityId: {1} | Pipelined~Context.CreateAsync", DateTime.UtcNow.ToString("o", CultureInfo.InvariantCulture), constructorParams.CorrelatedActivityId)); QueryInfo queryInfo = partitionedQueryExecutionInfo.QueryInfo; Func <string, Task <IDocumentQueryExecutionComponent> > createOrderByComponentFunc = async(continuationToken) => { CrossPartitionQueryExecutionContext.CrossPartitionInitParams initParams = new CrossPartitionQueryExecutionContext.CrossPartitionInitParams( collectionRid, partitionedQueryExecutionInfo, partitionKeyRanges, initialPageSize, continuationToken); return(await OrderByDocumentQueryExecutionContext.CreateAsync( constructorParams, initParams, cancellationToken)); }; Func <string, Task <IDocumentQueryExecutionComponent> > createParallelComponentFunc = async(continuationToken) => { CrossPartitionQueryExecutionContext.CrossPartitionInitParams initParams = new CrossPartitionQueryExecutionContext.CrossPartitionInitParams( collectionRid, partitionedQueryExecutionInfo, partitionKeyRanges, initialPageSize, continuationToken); return(await ParallelDocumentQueryExecutionContext.CreateAsync( constructorParams, initParams, cancellationToken)); }; return((IDocumentQueryExecutionContext)(await PipelinedDocumentQueryExecutionContext.CreateHelperAsync( partitionedQueryExecutionInfo.QueryInfo, initialPageSize, requestContinuation, createOrderByComponentFunc, createParallelComponentFunc))); }
/// <summary> /// Creates a PipelinedDocumentQueryExecutionContext. /// </summary> /// <param name="constructorParams">The parameters for constructing the base class.</param> /// <param name="collectionRid">The collection rid.</param> /// <param name="partitionedQueryExecutionInfo">The partitioned query execution info.</param> /// <param name="partitionKeyRanges">The partition key ranges.</param> /// <param name="initialPageSize">The initial page size.</param> /// <param name="requestContinuation">The request continuation.</param> /// <param name="cancellationToken">The cancellation token.</param> /// <returns>A task to await on, which in turn returns a PipelinedDocumentQueryExecutionContext.</returns> public static async Task <IDocumentQueryExecutionContext> CreateAsync( DocumentQueryExecutionContextBase.InitParams constructorParams, string collectionRid, PartitionedQueryExecutionInfo partitionedQueryExecutionInfo, List <PartitionKeyRange> partitionKeyRanges, int initialPageSize, string requestContinuation, CancellationToken cancellationToken) { DefaultTrace.TraceInformation( string.Format( CultureInfo.InvariantCulture, "{0}, CorrelatedActivityId: {1} | Pipelined~Context.CreateAsync", DateTime.UtcNow.ToString("o", CultureInfo.InvariantCulture), constructorParams.CorrelatedActivityId)); Func <string, Task <IDocumentQueryExecutionComponent> > createComponentFunc; QueryInfo queryInfo = partitionedQueryExecutionInfo.QueryInfo; if (queryInfo.HasOrderBy) { createComponentFunc = async(continuationToken) => { CrossPartitionQueryExecutionContext.CrossPartitionInitParams initParams = new CrossPartitionQueryExecutionContext.CrossPartitionInitParams( collectionRid, partitionedQueryExecutionInfo, partitionKeyRanges, initialPageSize, continuationToken); return(await OrderByDocumentQueryExecutionContext.CreateAsync( constructorParams, initParams, cancellationToken)); }; } else { createComponentFunc = async(continuationToken) => { CrossPartitionQueryExecutionContext.CrossPartitionInitParams initParams = new CrossPartitionQueryExecutionContext.CrossPartitionInitParams( collectionRid, partitionedQueryExecutionInfo, partitionKeyRanges, initialPageSize, continuationToken); return(await ParallelDocumentQueryExecutionContext.CreateAsync( constructorParams, initParams, cancellationToken)); }; } if (queryInfo.HasAggregates) { Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback = createComponentFunc; createComponentFunc = async(continuationToken) => { return(await AggregateDocumentQueryExecutionComponent.CreateAsync( queryInfo.Aggregates, continuationToken, createSourceCallback)); }; } if (queryInfo.HasDistinct) { Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback = createComponentFunc; createComponentFunc = async(continuationToken) => { return(await DistinctDocumentQueryExecutionComponent.CreateAsync( continuationToken, createSourceCallback, queryInfo.DistinctType)); }; } if (queryInfo.HasOffset) { if (!constructorParams.FeedOptions.EnableCrossPartitionSkipTake) { throw new ArgumentException("Cross Partition OFFSET / LIMIT is not supported."); } Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback = createComponentFunc; createComponentFunc = async(continuationToken) => { return(await SkipDocumentQueryExecutionComponent.CreateAsync( queryInfo.Offset.Value, continuationToken, createSourceCallback)); }; } if (queryInfo.HasLimit) { if (!constructorParams.FeedOptions.EnableCrossPartitionSkipTake) { throw new ArgumentException("Cross Partition OFFSET / LIMIT is not supported."); } Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback = createComponentFunc; createComponentFunc = async(continuationToken) => { return(await TakeDocumentQueryExecutionComponent.CreateLimitDocumentQueryExecutionComponentAsync( queryInfo.Limit.Value, continuationToken, createSourceCallback)); }; } if (queryInfo.HasTop) { Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback = createComponentFunc; createComponentFunc = async(continuationToken) => { return(await TakeDocumentQueryExecutionComponent.CreateTopDocumentQueryExecutionComponentAsync( queryInfo.Top.Value, continuationToken, createSourceCallback)); }; } return(new PipelinedDocumentQueryExecutionContext( await createComponentFunc(requestContinuation), initialPageSize)); }
public static async Task <PipelinedDocumentQueryExecutionContext> CreateAsync( IDocumentQueryClient client, ResourceType resourceTypeEnum, Type resourceType, Expression expression, FeedOptions feedOptions, string resourceLink, string collectionRid, PartitionedQueryExecutionInfo partitionedQueryExecutionInfo, List <PartitionKeyRange> targetRanges, int initialPageSize, bool isContinuationExpected, bool getLazyFeedResponse, CancellationToken token, Guid correlatedActivityId) { DefaultTrace.TraceInformation( string.Format( CultureInfo.InvariantCulture, "{0}, CorrelatedActivityId: {1} | Pipelined~Context.CreateAsync", DateTime.UtcNow.ToString("o", CultureInfo.InvariantCulture), correlatedActivityId)); Func <string, Task <IDocumentQueryExecutionComponent> > createComponentFunc; QueryInfo queryInfo = partitionedQueryExecutionInfo.QueryInfo; if (queryInfo.HasOrderBy) { createComponentFunc = async(requestContinuation) => { return(await OrderByDocumentQueryExecutionContext.CreateAsync( client, resourceTypeEnum, resourceType, expression, feedOptions, resourceLink, collectionRid, partitionedQueryExecutionInfo, targetRanges, initialPageSize, isContinuationExpected, getLazyFeedResponse, requestContinuation, token, correlatedActivityId)); }; } else { createComponentFunc = async(requestContinuation) => { return(await ParallelDocumentQueryExecutionContext.CreateAsync( client, resourceTypeEnum, resourceType, expression, feedOptions, resourceLink, collectionRid, partitionedQueryExecutionInfo, targetRanges, initialPageSize, isContinuationExpected, getLazyFeedResponse, requestContinuation, token, correlatedActivityId)); }; } if (queryInfo.HasAggregates) { Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback = createComponentFunc; createComponentFunc = async(requestContinuation) => { return(await AggregateDocumentQueryExecutionComponent.CreateAsync( queryInfo.Aggregates, requestContinuation, createSourceCallback)); }; } if (queryInfo.HasDistinct) { Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback = createComponentFunc; createComponentFunc = async(requestContinuation) => { return(await DistinctDocumentQueryExecutionComponent.CreateAsync( requestContinuation, createSourceCallback, queryInfo.DistinctType)); }; } if (queryInfo.HasTop) { Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback = createComponentFunc; createComponentFunc = async(requestContinuation) => { return(await TopDocumentQueryExecutionComponent.CreateAsync( queryInfo.Top.Value, requestContinuation, createSourceCallback)); }; } int actualPageSize = feedOptions.MaxItemCount.GetValueOrDefault(ParallelQueryConfig.GetConfig().ClientInternalPageSize); // If this contract changes, make the corresponding change in MongoDocumentClient.QueryInternalAsync if (actualPageSize == -1) { actualPageSize = int.MaxValue; } return(new PipelinedDocumentQueryExecutionContext( await createComponentFunc(feedOptions.RequestContinuation), Math.Min(actualPageSize, queryInfo.Top.GetValueOrDefault(actualPageSize)), correlatedActivityId)); }