public DriveResponse <DriveEmptyDataInfo> Execute(DriveClient driveClient)
{
var log = Log;
log.Debug("Execute: Downloading a file.");
var driveFile = DriveFile;
if (driveFile == null)
{
var request = new DriveFileGetRequest(FileId);
var response = driveClient.Execute(request);
DriveFile = driveFile = response.Data;
}
var uriItems = driveFile.DownloadUrl.Split(new[] { '?' }, StringSplitOptions.RemoveEmptyEntries);
IRestResponse restResponse;
long rangeBegin = 0;
uint chunkSize = ChunkSize ?? DefaultChunkSize;
var responseWriter = ResponseWriter;
long fileSize = driveFile.FileSize;
RaiseDownloadProgress(0, fileSize);
IRestClient restClient = driveClient.CreateRestClient(uriItems[0]);
int timeout = WriteChunkTimeout ?? DefaultWriteChunkTimeout;
do
{
IRestRequest restRequest = CreateRestRequest(uriItems.Length > 1 ? uriItems[1] : string.Empty);
restRequest.Timeout = timeout;
long rangeEnd = Math.Min(rangeBegin + chunkSize, fileSize - 1);
string rangeStr = string.Format("bytes={0}-{1}", rangeBegin, rangeEnd);
log.Trace("Execute: Downloading a chunk of file. FilePos: \"{0}\"; BufferLen: \"{1}\"; FileLen: \"{2}\"", rangeBegin, rangeEnd - rangeBegin, fileSize);
restRequest.AddParameter("Range", rangeStr, ParameterType.HttpHeader);
restRequest.ResponseWriter = stream => stream.CopyTo(responseWriter);
restResponse = RequestHandler.Request(restClient, restRequest, HttpStatusCode.OK, HttpStatusCode.PartialContent);
if (restResponse.StatusCode == HttpStatusCode.PartialContent)
{
uriItems = restResponse.ResponseUri.ToString().Split(new[] { '?' }, StringSplitOptions.RemoveEmptyEntries);
string rangeResultStr = GetUploadedRange(restResponse, ref rangeBegin, ref rangeEnd, ref fileSize);
log.Trace("Execute: Chunk downloaded. Content-Range: \"{0}\"", rangeResultStr);
RaiseDownloadProgress(rangeEnd, fileSize);
rangeBegin = rangeEnd + 1;
if (rangeBegin >= fileSize)
{
break;
}
}
restClient.BaseUrl = uriItems[0];
} while (restResponse.StatusCode == HttpStatusCode.PartialContent);
var result = new DriveResponse <DriveEmptyDataInfo>(restResponse);
return(result);
}
private static DriveFileInfo GetDriveFolder(DriveClient client, string rootFolderId, IEnumerable <string> pathItems, bool createIfNotExists = false)
{
DriveFileInfo currentFolder = null;
string currentId = rootFolderId;
foreach (var pathItem in pathItems)
{
var getRequest = new DriveFileListRequest
{
MaxResults = 4,
Query = string.Format("trashed = false and title = '{0}' and mimeType = 'application/vnd.google-apps.folder'", pathItem)
};
var getResponse = client.Execute(getRequest);
currentFolder = getResponse.Data.Items.FirstOrDefault();
if (currentFolder == null)
{
if (!createIfNotExists)
{
break;
}
var createRequest = new DriveFolderCreateRequest(new DriveFolderShortInfo
{
Title = pathItem,
Parents = new List <DriveParentReferenceInfo>
{
new DriveParentReferenceInfo {
Id = currentId
}
}
});
var createResponse = client.Execute(createRequest);
currentFolder = createResponse.Data;
}
currentId = currentFolder.Id;
}
return(currentFolder);
}
