public async Task <ResultAndAccessCondition <SortedDictionary <string, SortedSet <string> > > > ReadLatestIndexedAsync()
{
var stopwatch = Stopwatch.StartNew();
var blobName = GetLatestIndexedBlobName();
var blobReference = Container.GetBlobReference(blobName);
_logger.LogInformation("Reading the latest indexed owners from {BlobName}.", blobName);
var builder = new PackageIdToOwnersBuilder(_logger);
IAccessCondition accessCondition;
try
{
using (var stream = await blobReference.OpenReadAsync(AccessCondition.GenerateEmptyCondition()))
{
accessCondition = AccessConditionWrapper.GenerateIfMatchCondition(blobReference.ETag);
ReadStream(stream, builder.Add);
}
}
catch (StorageException ex) when(ex.RequestInformation.HttpStatusCode == (int)HttpStatusCode.NotFound)
{
accessCondition = AccessConditionWrapper.GenerateIfNotExistsCondition();
_logger.LogInformation("The blob {BlobName} does not exist.", blobName);
}
var output = new ResultAndAccessCondition <SortedDictionary <string, SortedSet <string> > >(
builder.GetResult(),
accessCondition);
stopwatch.Stop();
_telemetryService.TrackReadLatestIndexedOwners(output.Result.Count, stopwatch.Elapsed);
return(output);
}
