protected override async Task DeleteAsync(SnapshotMetadata metadata)
{
var blobClient = Container.GetBlobClient(metadata.ToSnapshotBlobId());
using var cts = new CancellationTokenSource(_settings.RequestTimeout);
await blobClient.DeleteIfExistsAsync(cancellationToken : cts.Token);
}
protected override async Task SaveAsync(SnapshotMetadata metadata, object snapshot)
{
var blob = Container.GetBlockBlobReference(metadata.ToSnapshotBlobId());
var snapshotData = _serialization.SnapshotToBytes(new Serialization.Snapshot(snapshot));
using (var cts = new CancellationTokenSource(_settings.RequestTimeout))
{
blob.Metadata.Add(TimeStampMetaDataKey, metadata.Timestamp.Ticks.ToString());
/*
* N.B. No need to convert the key into the Journal format we use here.
* The blobs themselves don't have their sort order affected by
* the presence of this metadata, so we should just save the SeqNo
* in a format that can be easily deserialized later.
*/
blob.Metadata.Add(SeqNoMetaDataKey, metadata.SequenceNr.ToString());
await blob.UploadFromByteArrayAsync(
snapshotData,
0,
snapshotData.Length,
AccessCondition.GenerateEmptyCondition(),
GenerateOptions(),
new OperationContext(),
cts.Token);
}
}
protected override async Task SaveAsync(SnapshotMetadata metadata, object snapshot)
{
var blobClient = Container.GetBlockBlobClient(metadata.ToSnapshotBlobId());
var snapshotData = _serialization.SnapshotToBytes(new Serialization.Snapshot(snapshot));
using var cts = new CancellationTokenSource(_settings.RequestTimeout);
var blobMetadata = new Dictionary <string, string>
{
[TimeStampMetaDataKey] = metadata.Timestamp.Ticks.ToString(),
/*
* N.B. No need to convert the key into the Journal format we use here.
* The blobs themselves don't have their sort order affected by
* the presence of this metadata, so we should just save the SeqNo
* in a format that can be easily deserialized later.
*/
[SeqNoMetaDataKey] = metadata.SequenceNr.ToString()
};
using var stream = new MemoryStream(snapshotData);
await blobClient.UploadAsync(
stream,
metadata : blobMetadata,
cancellationToken : cts.Token);
}
protected override async Task DeleteAsync(SnapshotMetadata metadata)
{
var blob = Container.GetBlockBlobReference(metadata.ToSnapshotBlobId());
using (var cts = new CancellationTokenSource(_settings.RequestTimeout))
{
await blob.DeleteIfExistsAsync(DeleteSnapshotsOption.None, AccessCondition.GenerateIfExistsCondition(),
GenerateOptions(), new OperationContext(),
cts.Token);
}
}