/// <summary>
/// Creates an DistinctDocumentQueryExecutionComponent
/// </summary>
/// <param name="executionEnvironment">The environment to execute on.</param>
/// <param name="queryClient">The query client</param>
/// <param name="requestContinuation">The continuation token.</param>
/// <param name="createSourceCallback">The callback to create the source to drain from.</param>
/// <param name="distinctQueryType">The type of distinct query.</param>
/// <returns>A task to await on and in return </returns>
public static async Task <IDocumentQueryExecutionComponent> CreateAsync(
ExecutionEnvironment executionEnvironment,
CosmosQueryClient queryClient,
string requestContinuation,
Func <string, Task <IDocumentQueryExecutionComponent> > createSourceCallback,
DistinctQueryType distinctQueryType)
{
IDocumentQueryExecutionComponent distinctDocumentQueryExecutionComponent;
switch (executionEnvironment)
{
case ExecutionEnvironment.Client:
distinctDocumentQueryExecutionComponent = await ClientDistinctDocumentQueryExecutionComponent.CreateAsync(
queryClient,
requestContinuation,
createSourceCallback,
distinctQueryType);
break;
case ExecutionEnvironment.Compute:
distinctDocumentQueryExecutionComponent = await ComputeDistinctDocumentQueryExecutionComponent.CreateAsync(
queryClient,
requestContinuation,
createSourceCallback,
distinctQueryType);
break;
default:
throw new ArgumentException($"Unknown {nameof(ExecutionEnvironment)}: {executionEnvironment}.");
}
return(distinctDocumentQueryExecutionComponent);
}
public static async Task <TryCatch <IDocumentQueryExecutionComponent> > TryCreateAsync(
ExecutionEnvironment executionEnvironment,
CosmosElement requestContinuation,
Func <CosmosElement, Task <TryCatch <IDocumentQueryExecutionComponent> > > tryCreateSourceAsync,
DistinctQueryType distinctQueryType)
{
if (tryCreateSourceAsync == null)
{
throw new ArgumentNullException(nameof(tryCreateSourceAsync));
}
TryCatch <IDocumentQueryExecutionComponent> tryCreateDistinctDocumentQueryExecutionComponent;
switch (executionEnvironment)
{
case ExecutionEnvironment.Client:
tryCreateDistinctDocumentQueryExecutionComponent = await ClientDistinctDocumentQueryExecutionComponent.TryCreateAsync(
requestContinuation,
tryCreateSourceAsync,
distinctQueryType);
break;
case ExecutionEnvironment.Compute:
tryCreateDistinctDocumentQueryExecutionComponent = await ComputeDistinctDocumentQueryExecutionComponent.TryCreateAsync(
requestContinuation,
tryCreateSourceAsync,
distinctQueryType);
break;
default:
throw new ArgumentException($"Unknown {nameof(ExecutionEnvironment)}: {executionEnvironment}.");
}
return(tryCreateDistinctDocumentQueryExecutionComponent);
}
