public BookTransfer(BloomParseClient bloomParseClient, BloomS3Client bloomS3Client, BookThumbNailer htmlThumbnailer, BookDownloadStartingEvent bookDownloadStartingEvent) { this._parseClient = bloomParseClient; this._s3Client = bloomS3Client; _thumbnailer = htmlThumbnailer; _bookDownloadStartingEvent = bookDownloadStartingEvent; }