/// <summary>
/// Creates a new <see cref="BlobMetadata"/> instance from a <see cref="IDictionary{string, string}"/> of metadata.
/// </summary>
/// <param name="metadata"></param>
/// <returns></returns>
internal static BlobMetadata FromDictionary(IDictionary <string, string> metadata, bool isBase64Encoded = true)
{
BlobMetadata result = new BlobMetadata();
Type t = typeof(BlobMetadata);
foreach (var kvp in metadata)
{
if (t.GetProperty(kvp.Key) == null)
{
continue;
}
string value = kvp.Value;
if (isBase64Encoded)
{
//all metadata in storage are currently base64 encoded to bypass ASCII only limitation https://github.com/Azure/azure-sdk-for-net/issues/178
value = Encoding.UTF8.GetString(Convert.FromBase64String(kvp.Value));
}
result.m_Metadata[kvp.Key] = value;
}
return(result);
}
/// <summary>
/// Create a new <see cref="AzureBlob"/> from an Azure storage blob properties.
/// </summary>
/// <param name="blobProperties"></param>
/// <returns></returns>
public static AzureBlob FromBlobProperties(string blobPath, BlobProperties blobProperties, IDictionary <string, string> blobMetadata)
{
return(new AzureBlob
{
Path = blobPath,
Checksum = blobProperties.ContentMD5,
ContentType = blobProperties.ContentType,
LastModified = blobProperties.LastModified.Value,
Length = blobProperties.Length,
Metadata = BlobMetadata.FromDictionary(blobMetadata)
});
}
/// <summary>
/// Initializes a new instance of the class.
/// </summary>
/// <param name="stream"></param>
/// <param name="metadata"></param>
public BlobStreamDecorator(Stream stream, BlobMetadata metadata)
{
m_Stream = stream ?? throw new ArgumentNullException(nameof(stream));
Metadata = metadata ?? throw new ArgumentNullException(nameof(metadata));
}
