public async Task DownloadAsync(string fileName, Stream stream, BytesRange range = default,
CancellationToken ct = default)
{
Guard.NotNull(stream, nameof(stream));
var key = GetKey(fileName, nameof(fileName));
try
{
var request = new GetObjectRequest
{
BucketName = options.Bucket,
Key = key
};
if (range.IsDefined)
{
request.ByteRange = new ByteRange(range.ToString());
}
using (var response = await s3Client.GetObjectAsync(request, ct))
{
await response.ResponseStream.CopyToAsync(stream, BufferSize, ct);
}
}
catch (AmazonS3Exception ex) when(ex.StatusCode == HttpStatusCode.NotFound)
{
throw new AssetNotFoundException(fileName, ex);
}
}
private static void TestBytesRange(BytesRange sut, long?from, long?to, long length, bool defined, string formatted)
{
Assert.Equal(from, sut.From);
Assert.Equal(to, sut.To);
Assert.Equal(length, sut.Length);
Assert.Equal(defined, sut.IsDefined);
Assert.Equal(formatted, sut.ToString());
}
