protected override string ProcessRequest()
        {
            try
            {
                BlobStorageService _blobStorageService = new BlobStorageService();

                string newsXmlFileBlobPath = _blobStorageService.GetSinglFile(BlobStorageService.Blob_XMLFileContainer, "News.xml");

                GetNews(newsXmlFileBlobPath);

                return("{ \"Status\":\"Ok\",\"Message\" : \"successfully crawl news.\" }");
            }
            catch (Exception ex)
            {
                return("{ \"Status\":\"Error\", \"Message\" : \"Error occured.\", \"ActualMessage\" : \"" + ex.Message + "\"}");
            }
        }