public async Task RunAsync(CancellationToken token)
{
if (!_fileInfo.Exists)
{
throw new FileNotFoundException(_fileInfo.FullName);
}
IsActive = true;
try
{
//validate cancellation before making the API call
token.ThrowIfCancellationRequested();
var job = (State.Status == JobStatus.Pending.ToString())
? await CreateNewJob() : LoadJobFromState();
using (var fs = _fileInfo.OpenRead())
{
var item = new UploadItem
{
ContentLength = _fileInfo.Length,
DataStream = fs
};
//if this is a resumed job, we need to set the stream position
if (State.Status != JobStatus.Pending.ToString())
{
item.DataStream.Position = job.CurrentPosition;
}
UpdateProgress(job, item);
while (job.CurrentPosition < _fileInfo.Length)
{
//validate cancellation before making the API call
token.ThrowIfCancellationRequested();
//upload next chunk
await _client.UploadChunkAsync(job, item);
//update the manifest
State.CurrentPosition = job.CurrentPosition;
State.ProcessedAt = DateTime.UtcNow;
UpdateProgress(job, item);
}
//validate cancellation before making the API call
token.ThrowIfCancellationRequested();
var archiveId = await _client.FinishUploadAsync(job, item);
//mark manifest on complete
State.Status = JobStatus.Completed.ToString();
State.CurrentPosition = job.CurrentPosition;
State.ProcessedAt = DateTime.UtcNow;
State.ArchiveId = archiveId;
fs.Close();
UpdateProgress(job, item);
}
CleanUp();
}
catch (Exception ex)
{
HasFailed = true;
Exception = ex;
//update manifest to indicate failure
State.Status = JobStatus.Failed.ToString();
State.ProcessedAt = DateTime.UtcNow;
}
IsActive = false;
}