public static ChangeFeedIteratorCore Create(
ContainerInternal container,
FeedRangeInternal feedRangeInternal,
string continuation,
ChangeFeedRequestOptions changeFeedRequestOptions)
{
if (!string.IsNullOrEmpty(continuation))
{
if (FeedRangeContinuation.TryParse(continuation, out FeedRangeContinuation feedRangeContinuation))
{
return(new ChangeFeedIteratorCore(container, feedRangeContinuation, changeFeedRequestOptions));
}
else
{
throw new ArgumentException(string.Format(ClientResources.FeedToken_UnknownFormat, continuation));
}
}
feedRangeInternal = feedRangeInternal ?? FeedRangeEPK.ForCompleteRange();
return(new ChangeFeedIteratorCore(container, feedRangeInternal, changeFeedRequestOptions));
}
public static bool TryParse(
JObject jObject,
JsonSerializer serializer,
out FeedRangeInternal feedRangeInternal)
{
if (FeedRangeEPK.TryParse(jObject, serializer, out feedRangeInternal))
{
return(true);
}
if (FeedRangePartitionKey.TryParse(jObject, serializer, out feedRangeInternal))
{
return(true);
}
if (FeedRangePartitionKeyRange.TryParse(jObject, serializer, out feedRangeInternal))
{
return(true);
}
feedRangeInternal = null;
return(false);
}
public async Task <IReadOnlyList <Documents.Routing.Range <string> > > VisitAsync(FeedRangeEPK feedRange, CancellationToken cancellationToken = default)
{
Routing.PartitionKeyRangeCache partitionKeyRangeCache = await this.container.ClientContext.DocumentClient.GetPartitionKeyRangeCacheAsync();
IReadOnlyList <PartitionKeyRange> pkRanges = await partitionKeyRangeCache.TryGetOverlappingRangesAsync(
collectionRid : await this.container.GetRIDAsync(cancellationToken),
range : feedRange.Range,
forceRefresh : false);
return(pkRanges.Select(pkRange => pkRange.ToRange()).ToList());
}
public void Visit(FeedRangeEPK feedRange)
{
// No-op since the range is defined by the composite continuation token
}
