/// <summary>
/// Compress list of file entity objects into array of byte.
/// </summary>
/// <param name="files">list of files to compress.</param>
/// <returns></returns>
public static byte[] Compress(this ConcurrentBag <FileEntity> files)
{
if (files.Any())
{
var ms = new MemoryStream();
using (var archive = new ZipArchive(ms, ZipArchiveMode.Create, leaveOpen: true))
{
foreach (var file in files)
{
var entry = archive.Add(file);
}
}
ms.Position = 0; //reset memory stream position.
return(ms.ReadBytes());
}
return(null);
}