public async Task <OneOf <StorageFile, NotFound, Exception> > ReadAsync(string name, CancellationToken cancellationToken = default)
{
try
{
var cache = await _redis.GetObjectAsync <Cache>(_options.Prefix + name, cancellationToken);
if (cache == null)
{
var result = await _impl.ReadAsync(name, cancellationToken);
if (result.TryPickT0(out var file, out _))
{
await using (file)
{
cache = new Cache
{
Data = await file.Stream.ToArrayAsync(cancellationToken),
MediaType = file.MediaType
};
await _redis.SetObjectAsync(_options.Prefix + name, cache, _options.Expiry, cancellationToken : cancellationToken);
}
}
}
if (cache == null)
{
return(new NotFound());
}
return(new StorageFile
{
Name = name,
MediaType = cache.MediaType,
Stream = _memory.GetStream(cache.Data)
});
}
catch (Exception e)
{
_logger.LogWarning(e, $"Failed to read file '{name}'.");
return(e);
}
}
