private Attachment CreateBinaryFile(string fileName)
        {
            if (string.IsNullOrEmpty(fileName))
                return null;
            if (!File.Exists(fileName))
            {
                throw new FileNotFoundException("Файл не найден или нет доступа", fileName);
            }
            var mimeMappingService = Locator.GetServiceNotNull<IMimeMappingService>();

            var binaryFile = new BinaryFile {
                ContentType = mimeMappingService.GetTypeByExtension(Path.GetExtension(fileName)),
                Name = Path.GetFileName(fileName),
                ContentFilePath = fileName,
                CreateDate = DateTime.Now,
            };
            binaryFile.InitializeContentFilePath();
            File.Copy(fileName, binaryFile.ContentFilePath);
            var fileManager = Locator.GetServiceNotNull<IFileManager>();
            fileManager.SaveFile(binaryFile);
            return new Attachment() {
                File = binaryFile
            };
        }