private async Task <IResultChunk> DownloadChunkAsync(DownloadContextV3 downloadContext)
        {
            //logger.Info($"Start donwloading chunk #{downloadContext.chunkIndex}");
            SFReusableChunk chunk = downloadContext.chunk;

            S3DownloadRequest downloadRequest = new S3DownloadRequest()
            {
                Url  = new UriBuilder(chunk.Url).Uri,
                qrmk = downloadContext.qrmk,
                // s3 download request timeout to one hour
                RestTimeout  = TimeSpan.FromHours(1),
                HttpTimeout  = Timeout.InfiniteTimeSpan, // Disable timeout for each request
                chunkHeaders = downloadContext.chunkHeaders
            };

            using (var httpResponse = await restRequester.GetAsync(downloadRequest, downloadContext.cancellationToken)
                                      .ConfigureAwait(continueOnCapturedContext: false))
                using (Stream stream = await httpResponse.Content.ReadAsStreamAsync()
                                       .ConfigureAwait(continueOnCapturedContext: false))
                {
                    ParseStreamIntoChunk(stream, chunk);
                }
            logger.Info($"Succeed downloading chunk #{chunk.chunkIndexToDownload}");
            return(chunk);
        }
コード例 #2
0
        static void downloadChunkCallBack(Object context)
        {
            DownloadContext downloadContext = (DownloadContext)context;
            SFResultChunk   chunk           = downloadContext.chunk;

            // change download status
            Monitor.Enter(chunk.syncPrimitive);
            try
            {
                chunk.downloadState = DownloadState.IN_PROGRESS;
            }
            finally
            {
                Monitor.Exit(chunk.syncPrimitive);
            }

            S3DownloadRequest downloadRequest = new S3DownloadRequest()
            {
                uri  = new UriBuilder(chunk.url).Uri,
                qrmk = downloadContext.qrmk,
                // s3 download request timeout to one hour
                timeout            = 60 * 60,
                httpRequestTimeout = 16000,
                chunkHeaders       = downloadContext.chunkHeaders
            };

            HttpResponseMessage httpResponse = restRequest.get(downloadRequest);
            Stream stream = httpResponse.Content.ReadAsStreamAsync().Result;
            IEnumerable <string> encoding;

            if (httpResponse.Content.Headers.TryGetValues("Content-Encoding", out encoding))
            {
                if (String.Compare(encoding.First(), "gzip", true) == 0)
                {
                    stream = new GZipStream(stream, CompressionMode.Decompress);
                }
            }

            parseStreamIntoChunk(stream, chunk);

            /*StreamReader r = new StreamReader(stream);
             * string l = r.ReadLine();
             * Console.WriteLine(l);*/

            chunk.downloadState = DownloadState.SUCCESS;

            // signal main thread to start consuming
            lock (chunk.syncPrimitive)
            {
                Monitor.Pulse(chunk.syncPrimitive);
            }
        }
コード例 #3
0
        public Task <HttpResponseMessage> GetAsync(S3DownloadRequest getRequest, CancellationToken cancellationToken)
        {
            HttpRequestMessage message = new HttpRequestMessage(HttpMethod.Get, getRequest.uri);

            if (getRequest.chunkHeaders != null)
            {
                foreach (var item in getRequest.chunkHeaders)
                {
                    message.Headers.Add(item.Key, item.Value);
                }
            }
            else
            {
                message.Headers.Add(SSE_C_ALGORITHM, SSE_C_AES);
                message.Headers.Add(SSE_C_KEY, getRequest.qrmk);
            }
            message.Properties["TIMEOUT_PER_HTTP_REQUEST"] = getRequest.httpRequestTimeout;

            return(SendAsync(message, getRequest.timeout, cancellationToken));
        }
コード例 #4
0
        private async Task <IResultChunk> DownloadChunkAsync(DownloadContext downloadContext)
        {
            logger.Info($"Start donwloading chunk #{downloadContext.chunkIndex}");
            SFResultChunk chunk = downloadContext.chunk;

            chunk.downloadState = DownloadState.IN_PROGRESS;

            S3DownloadRequest downloadRequest =
                new S3DownloadRequest(ResultSet.sfStatement.SfSession.InsecureMode)
            {
                Url  = new UriBuilder(chunk.url).Uri,
                qrmk = downloadContext.qrmk,
                // s3 download request timeout to one hour
                RestTimeout  = TimeSpan.FromHours(1),
                HttpTimeout  = TimeSpan.FromSeconds(32),
                chunkHeaders = downloadContext.chunkHeaders
            };


            var httpResponse = await restRequester.GetAsync(downloadRequest, downloadContext.cancellationToken).ConfigureAwait(false);

            Stream stream = Task.Run(async() => await httpResponse.Content.ReadAsStreamAsync()).Result;
            IEnumerable <string> encoding;

            //TODO this shouldn't be required.
            if (httpResponse.Content.Headers.TryGetValues("Content-Encoding", out encoding))
            {
                if (String.Compare(encoding.First(), "gzip", true) == 0)
                {
                    stream = new GZipStream(stream, CompressionMode.Decompress);
                }
            }

            ParseStreamIntoChunk(stream, chunk);

            chunk.downloadState = DownloadState.SUCCESS;
            logger.Info($"Succeed downloading chunk #{downloadContext.chunkIndex}");

            return(chunk);
        }
コード例 #5
0
        private async Task <SFResultChunk> DownloadChunkAsync(DownloadContextV2 downloadContext)
        {
            logger.Info($"Start downloading chunk #{downloadContext.chunkIndex+1}");
            SFResultChunk chunk = downloadContext.chunk;

            chunk.downloadState = DownloadState.IN_PROGRESS;

            S3DownloadRequest downloadRequest = new S3DownloadRequest()
            {
                uri  = new UriBuilder(chunk.url).Uri,
                qrmk = downloadContext.qrmk,
                // s3 download request timeout to one hour
                timeout            = TimeSpan.FromHours(1),
                httpRequestTimeout = TimeSpan.FromSeconds(16),
                chunkHeaders       = downloadContext.chunkHeaders
            };

            var httpResponse = await restRequest.GetAsync(downloadRequest, downloadContext.cancellationToken).ConfigureAwait(false);

            Stream stream = await httpResponse.Content.ReadAsStreamAsync().ConfigureAwait(false);

            if (httpResponse.Content.Headers.TryGetValues("Content-Encoding", out var encoding))
            {
                if (string.Equals(encoding.First(), "gzip", StringComparison.OrdinalIgnoreCase))
                {
                    stream = new GZipStream(stream, CompressionMode.Decompress);
                }
            }

            parseStreamIntoChunk(stream, chunk);

            chunk.downloadState = DownloadState.SUCCESS;
            logger.Info($"Succeed downloading chunk #{downloadContext.chunkIndex+1}");

            return(chunk);
        }
コード例 #6
0
        private async Task <SFResultChunk> DownloadChunkAsync(DownloadContext downloadContext)
        {
            SFResultChunk chunk = downloadContext.chunk;

            chunk.downloadState = DownloadState.IN_PROGRESS;

            S3DownloadRequest downloadRequest = new S3DownloadRequest()
            {
                uri  = new UriBuilder(chunk.url).Uri,
                qrmk = downloadContext.qrmk,
                // s3 download request timeout to one hour
                timeout            = TimeSpan.FromHours(1),
                httpRequestTimeout = TimeSpan.FromSeconds(16),
                chunkHeaders       = downloadContext.chunkHeaders
            };

            var httpResponse = await restRequest.GetAsync(downloadRequest, downloadContext.cancellationToken);

            Stream stream = httpResponse.Content.ReadAsStreamAsync().Result;
            IEnumerable <string> encoding;

            //TODO this shouldn't be required.
            if (httpResponse.Content.Headers.TryGetValues("Content-Encoding", out encoding))
            {
                if (String.Compare(encoding.First(), "gzip", true) == 0)
                {
                    stream = new GZipStream(stream, CompressionMode.Decompress);
                }
            }

            parseStreamIntoChunk(stream, chunk);

            chunk.downloadState = DownloadState.SUCCESS;

            return(chunk);
        }