private async Task <ObjectResult <ContentHashListWithCacheMetadata> > UnpackBlobContentHashListAsync(Context context, BlobContentHashListWithCacheMetadata blobCacheMetadata)
{
Contract.Assert(blobCacheMetadata != null);
if (blobCacheMetadata.ContentHashListWithDeterminism.BlobIdentifier == null)
{
return(new ObjectResult <ContentHashListWithCacheMetadata>(
new ContentHashListWithCacheMetadata(
new ContentHashListWithDeterminism(null, blobCacheMetadata.Determinism),
blobCacheMetadata.GetRawExpirationTimeUtc(),
blobCacheMetadata.ContentGuarantee,
blobCacheMetadata.HashOfExistingContentHashList)));
}
BlobIdentifier blobId = blobCacheMetadata.ContentHashListWithDeterminism.BlobIdentifier;
Func <ContentHash, CancellationToken, Task <ObjectResult <Stream> > > openStreamFunc = async(hash, cts) =>
{
OpenStreamResult openStreamResult = await _blobContentSession.OpenStreamAsync(context, hash, cts);
if (openStreamResult.Succeeded)
{
return(new ObjectResult <Stream>(openStreamResult.Stream));
}
return(new ObjectResult <Stream>(openStreamResult));
};
StructResult <ContentHashListWithDeterminism> contentHashListResult =
await BlobContentHashListExtensions.UnpackFromBlob(
openStreamFunc,
blobId);
if (contentHashListResult.Succeeded)
{
var contentHashListWithCacheMetadata = new ContentHashListWithCacheMetadata(
contentHashListResult.Data,
blobCacheMetadata.GetRawExpirationTimeUtc(),
blobCacheMetadata.ContentGuarantee,
blobCacheMetadata.HashOfExistingContentHashList);
return(new ObjectResult <ContentHashListWithCacheMetadata>(contentHashListWithCacheMetadata));
}
else
{
return(new ObjectResult <ContentHashListWithCacheMetadata>(contentHashListResult));
}
}
/// <inheritdoc />
public async Task <ObjectResult <ContentHashListWithCacheMetadata> > AddContentHashListAsync(
Context context,
string cacheNamespace,
StrongFingerprint strongFingerprint,
ContentHashListWithCacheMetadata valueToAdd)
{
try
{
Func <System.IO.Stream, System.Threading.CancellationToken, Task <StructResult <ContentHash> > > putStreamFunc =
async(stream, cts) =>
{
PutResult putResult = await _blobContentSession.PutStreamAsync(context, HashType.Vso0, stream, cts);
if (putResult.Succeeded)
{
return(new StructResult <ContentHash>(putResult.ContentHash));
}
return(new StructResult <ContentHash>(putResult));
};
StructResult <ContentHash> blobIdOfContentHashListResult =
await BlobContentHashListExtensions.PackInBlob(
putStreamFunc,
valueToAdd.ContentHashListWithDeterminism);
if (!blobIdOfContentHashListResult.Succeeded)
{
return(new ObjectResult <ContentHashListWithCacheMetadata>(blobIdOfContentHashListResult));
}
var blobContentHashListWithDeterminism =
new BlobContentHashListWithDeterminism(
valueToAdd.ContentHashListWithDeterminism.Determinism.EffectiveGuid,
BlobIdentifierToContentHashExtensions.ToBlobIdentifier(blobIdOfContentHashListResult.Data));
var blobContentHashListWithCacheMetadata = new BlobContentHashListWithCacheMetadata(
blobContentHashListWithDeterminism,
valueToAdd.GetRawExpirationTimeUtc(),
valueToAdd.ContentGuarantee,
valueToAdd.HashOfExistingContentHashList);
BlobContentHashListResponse addResult = await ArtifactHttpClientErrorDetectionStrategy.ExecuteWithTimeoutAsync(
context,
"AddContentHashList",
innerCts => _buildCacheHttpClient.AddContentHashListAsync(
cacheNamespace,
strongFingerprint,
blobContentHashListWithCacheMetadata),
CancellationToken.None).ConfigureAwait(false);
DownloadUriCache.Instance.BulkAddDownloadUris(addResult.BlobDownloadUris);
// add succeeded but returned an empty contenthashlistwith cache metadata. correct this.
if (addResult.ContentHashListWithCacheMetadata == null)
{
return
(new ObjectResult <ContentHashListWithCacheMetadata>(
new ContentHashListWithCacheMetadata(
new ContentHashListWithDeterminism(null, blobContentHashListWithCacheMetadata.Determinism),
blobContentHashListWithCacheMetadata.GetRawExpirationTimeUtc(),
blobContentHashListWithCacheMetadata.ContentGuarantee)));
}
else
{
return(await UnpackBlobContentHashListAsync(context, addResult.ContentHashListWithCacheMetadata));
}
}
catch (Exception ex)
{
return(new ObjectResult <ContentHashListWithCacheMetadata>(ex));
}
}