public async Task <AuxiliaryFileResult <DownloadData> > ReadLatestIndexedAsync( IAccessCondition accessCondition, StringCache stringCache) { var stopwatch = Stopwatch.StartNew(); var blobName = GetLatestIndexedBlobName(); var blobReference = Container.GetBlobReference(blobName); _logger.LogInformation("Reading the latest indexed downloads from {BlobName}.", blobName); bool modified; var downloads = new DownloadData(); AuxiliaryFileMetadata metadata; try { using (var stream = await blobReference.OpenReadAsync(accessCondition)) { ReadStream( stream, (id, version, downloadCount) => { id = stringCache.Dedupe(id); version = stringCache.Dedupe(version); downloads.SetDownloadCount(id, version, downloadCount); }); modified = true; metadata = new AuxiliaryFileMetadata( lastModified: new DateTimeOffset(blobReference.LastModifiedUtc, TimeSpan.Zero), loadDuration: stopwatch.Elapsed, fileSize: blobReference.Properties.Length, etag: blobReference.ETag); } } catch (StorageException ex) when(ex.RequestInformation.HttpStatusCode == (int)HttpStatusCode.NotModified) { _logger.LogInformation("The blob {BlobName} has not changed.", blobName); modified = false; downloads = null; metadata = null; } stopwatch.Stop(); _telemetryService.TrackReadLatestIndexedDownloads(downloads?.Count, modified, stopwatch.Elapsed); return(new AuxiliaryFileResult <DownloadData>( modified, downloads, metadata)); }
public async Task <AuxiliaryFileResult <HashSet <string> > > ReadLatestAsync( IAccessCondition accessCondition, StringCache stringCache) { var stopwatch = Stopwatch.StartNew(); var blobName = GetLatestIndexedBlobName(); var blobReference = Container.GetBlobReference(blobName); _logger.LogInformation("Reading the latest verified packages from {BlobName}.", blobName); bool modified; var data = new HashSet <string>(StringComparer.OrdinalIgnoreCase); AuxiliaryFileMetadata metadata; try { using (var stream = await blobReference.OpenReadAsync(accessCondition)) { ReadStream(stream, id => data.Add(stringCache.Dedupe(id))); modified = true; metadata = new AuxiliaryFileMetadata( lastModified: new DateTimeOffset(blobReference.LastModifiedUtc, TimeSpan.Zero), loadDuration: stopwatch.Elapsed, fileSize: blobReference.Properties.Length, etag: blobReference.ETag); } } catch (StorageException ex) when(ex.RequestInformation.HttpStatusCode == (int)HttpStatusCode.NotModified) { _logger.LogInformation("The blob {BlobName} has not changed.", blobName); modified = false; data = null; metadata = null; } stopwatch.Stop(); _telemetryService.TrackReadLatestVerifiedPackages(data?.Count, modified, stopwatch.Elapsed); return(new AuxiliaryFileResult <HashSet <string> >( modified, data, metadata)); }