public async Task <HttpStatusCode> UploadFileAsync(string filePath, int blockSize = 1 * 1024 * 1024, int maxThreads = 4)
{
var result = HttpStatusCode.BadRequest;
FileInfo file = new FileInfo(filePath);
var blobName = Path.GetFileName(filePath);
_statistics.Initialize(file.Length);
try
{
// Read all blocks in the file
var fileBlocks = Enumerable
.Range(1, 1 + ((int)(file.Length / blockSize)))
.Select(_ => new BlockMetadata(_, blockSize, file.Length))
.Where(block => block.Size > 0)
.ToList();
DateTime start = DateTime.UtcNow;
async Task UploadBlockAsync(BlockMetadata block, IUploadStatistics statistics)
{
// Read file block
var blockData = await file.GetFileContentAsync(block.Index, block.Size).ConfigureAwait(false);
// Stage block to the container
var stageResponseCode = await _restClientHelper.StageBlockAsync(blobName, block.Id, blockData).ConfigureAwait(false);
if (stageResponseCode != HttpStatusCode.OK)
{
throw new HttpRequestException($"StageBlock {block.Id} has failed with code {stageResponseCode}");
}
// Update upload statistics
Program.Logger.LogInformation(statistics.Update(block.Id, blockData.Length, start));
}
// Process file blocks in multiple threads (default = 4)
await _enumerableHelper.ForEachAsync(
source : fileBlocks,
partitionCount : maxThreads,
body : blockMetadata => UploadBlockAsync(blockMetadata, _statistics)).ConfigureAwait(false);
// Create File metadata info
FileMetadata fileMetadata = new FileMetadata
{
FileName = blobName,
Size = file.Length
};
result = await _restClientHelper.CommitBlocksAsync(blobName, fileMetadata).ConfigureAwait(false);
}
catch (Exception ex)
{
Program.Logger.LogError(ex.Message);
}
return(result);
}