protected override async Task SetItemsAsync <T>(IEnumerable <CacheItem <T> > items, string partitionDirectory)
{
partitionDirectory = partitionDirectory ?? _defaultPartitionDirectory;
ArgCheck.NotNull(nameof(partitionDirectory), partitionDirectory);
var utcNow = DateTimeOffset.UtcNow;
foreach (var item in items)
{
var blob = GetBlobReference(item.Key, partitionDirectory);
using (var stream = await blob.OpenWriteAsync(new AccessCondition(), _options, new OperationContext()).ConfigureAwait(false))
{
stream.Position = 0;
await _serializer.SerializeToStreamAsync(stream, item.Value).ConfigureAwait(false);
}
if (item.Expiration.HasValue)
{
// load metadata and properties
await blob.FetchAttributesAsync(new AccessCondition(), _options, new OperationContext()).ConfigureAwait(false);
// set expiration
blob.Metadata[_cacheExpirationMetadataKey] = item.Expiration.Value.ToString(_dateTimeFormatString);
await blob.SetMetadataAsync(new AccessCondition(), _options, new OperationContext()).ConfigureAwait(false);
}
}
}
public static async Task SerializeToFileAsync(this IAsyncStreamSerializer serializer, string path, object graph, bool overwrite = false, CancellationToken cancellationToken = default)
{
using (var stream = File.Open(path, overwrite ? FileMode.Create : FileMode.CreateNew))
{
await serializer.SerializeToStreamAsync(stream, graph, cancellationToken).ConfigureAwait(false);
}
}