internal virtual Task <ResponseMessage> NextResultSetDelegateAsync(
string continuationToken,
string partitionKeyRangeId,
int?maxItemCount,
ChangeFeedRequestOptions options,
CancellationToken cancellationToken)
{
Uri resourceUri = this.container.LinkUri;
return(this.clientContext.ProcessResourceOperationAsync <ResponseMessage>(
resourceUri: resourceUri,
resourceType: Documents.ResourceType.Document,
operationType: Documents.OperationType.ReadFeed,
requestOptions: options,
cosmosContainerCore: this.container,
requestEnricher: request =>
{
ChangeFeedRequestOptions.FillContinuationToken(request, continuationToken);
ChangeFeedRequestOptions.FillMaxItemCount(request, maxItemCount);
ChangeFeedRequestOptions.FillPartitionKeyRangeId(request, partitionKeyRangeId);
},
responseCreator: response => response,
partitionKey: null,
streamPayload: null,
cancellationToken: cancellationToken));
}
public void ChangeFeedRequestOptions_MaxItemSizeIsSet()
{
RequestMessage request = new RequestMessage();
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
};
ChangeFeedRequestOptions.FillMaxItemCount(request, 10);
requestOptions.PopulateRequestOptions(request);
Assert.AreEqual("10", request.Headers[Documents.HttpConstants.HttpHeaders.PageSize]);
Assert.AreEqual(ChangeFeedRequestOptions.IfNoneMatchAllHeaderValue, request.Headers.IfNoneMatch);
Assert.IsNull(request.Headers[Documents.HttpConstants.HttpHeaders.IfModifiedSince]);
}
/// <summary>
/// Fill the CosmosRequestMessage headers with the set properties
/// </summary>
/// <param name="request">The <see cref="RequestMessage"/></param>
internal override void PopulateRequestOptions(RequestMessage request)
{
// Check if no Continuation Token is present
if (string.IsNullOrEmpty(request.Headers.IfNoneMatch))
{
if (this.StartTime == null)
{
request.Headers.IfNoneMatch = ChangeFeedRequestOptions.IfNoneMatchAllHeaderValue;
}
else if (this.StartTime != null &&
this.StartTime != ChangeFeedRequestOptions.DateTimeStartFromBeginning)
{
request.Headers.Add(HttpConstants.HttpHeaders.IfModifiedSince, this.StartTime.Value.ToUniversalTime().ToString("r", CultureInfo.InvariantCulture));
}
}
ChangeFeedRequestOptions.FillMaxItemCount(request, this.MaxItemCount);
request.Headers.Add(HttpConstants.HttpHeaders.A_IM, HttpConstants.A_IMHeaderValues.IncrementalFeed);
base.PopulateRequestOptions(request);
}