private async Task <FeedResponse <TResponse> > ExecuteNextPrivateAsync <TResponse>(CancellationToken cancellationToken)
{
if (this.queryExecutionContext == null)
{
this.queryExecutionContext = await this.CreateDocumentQueryExecutionContextAsync(true, cancellationToken);
}
else if (this.queryExecutionContext.IsDone)
{
this.queryExecutionContext.Dispose();
this.queryExecutionContext = await this.CreateDocumentQueryExecutionContextAsync(true, cancellationToken);
}
FeedResponse <CosmosElement> response = await this.queryExecutionContext.ExecuteNextAsync(cancellationToken);
FeedResponse <TResponse> typedFeedResponse = FeedResponseBinder.ConvertCosmosElementFeed <TResponse>(
response,
this.resourceTypeEnum,
this.feedOptions.JsonSerializerSettings);
if (!this.HasMoreResults && !tracedLastExecution)
{
DefaultTrace.TraceInformation(
string.Format(
CultureInfo.InvariantCulture,
"{0}, CorrelatedActivityId: {1} | Last ExecuteNextAsync with ExecuteNextAsyncMetrics: [{2}]",
DateTime.UtcNow.ToString("o", CultureInfo.InvariantCulture),
this.CorrelatedActivityId,
this.executeNextAysncMetrics));
tracedLastExecution = true;
}
return(typedFeedResponse);
}
/// <summary>
/// Retrieves an object that can iterate through the individual results of the query.
/// </summary>
/// <remarks>
/// This triggers a synchronous multi-page load.
/// </remarks>
/// <returns></returns>
public IEnumerator <T> GetEnumerator()
{
using (IDocumentQueryExecutionContext localQueryExecutionContext =
TaskHelper.InlineIfPossible(() => this.CreateDocumentQueryExecutionContextAsync(false, CancellationToken.None), null).Result)
{
while (!localQueryExecutionContext.IsDone)
{
FeedResponse <CosmosElement> feedResponse = TaskHelper.InlineIfPossible(() => localQueryExecutionContext.ExecuteNextAsync(CancellationToken.None), null).Result;
FeedResponse <T> typedFeedResponse = FeedResponseBinder.ConvertCosmosElementFeed <T>(
feedResponse,
this.resourceTypeEnum,
this.feedOptions.JsonSerializerSettings);
foreach (T item in typedFeedResponse)
{
yield return(item);
}
}
}
}
/// <summary>
/// Retrieves an object that can iterate through the individual results of the query.
/// </summary>
/// <remarks>
/// This triggers a synchronous multi-page load.
/// </remarks>
public IEnumerator <T> GetEnumerator()
{
using (IDocumentQueryExecutionContext localQueryExecutionContext =
#pragma warning disable VSTHRD002 // Avoid problematic synchronous waits
TaskHelper.InlineIfPossible(() => this.CreateDocumentQueryExecutionContextAsync(false, CancellationToken.None), null).Result)
#pragma warning restore VSTHRD002 // Avoid problematic synchronous waits
{
while (!localQueryExecutionContext.IsDone)
{
#pragma warning disable VSTHRD002 // Avoid problematic synchronous waits
DocumentFeedResponse <CosmosElement> feedResponse = TaskHelper.InlineIfPossible(() => localQueryExecutionContext.ExecuteNextFeedResponseAsync(CancellationToken.None), null).Result;
#pragma warning restore VSTHRD002 // Avoid problematic synchronous waits
DocumentFeedResponse <T> typedFeedResponse = FeedResponseBinder.ConvertCosmosElementFeed <T>(
feedResponse,
this.resourceTypeEnum,
this.feedOptions.JsonSerializerSettings);
foreach (T item in typedFeedResponse)
{
yield return(item);
}
}
}
}
