public async Task UploadAsync(string fileName, string userId, Stream stream)
{
lock (_uploadLockObj)
{
if (_uploadTask == null)
{
_uploadTask = Task.Run(async() => await _fileClient.UploadAsync(fileName, userId, stream), _cts.Token);
}
}
await _uploadTask;
}
public async Task ExecuteAsync(UploadDocumentCommand command, CancellationToken cancellationToken = default)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
if (cancellationToken.IsCancellationRequested)
{
_logger.LogInformation($"{nameof(UploadDocumentCommandHandler)}.{nameof(ExecuteAsync)} was cancelled before execution");
cancellationToken.ThrowIfCancellationRequested();
}
using (var stream = command.File.OpenReadStream())
{
await _fileClient.UploadAsync(
fileName : $"{command.Subject}{Path.GetExtension(command.File.FileName)}",
userId : command.Actor,
stream : stream,
cancellationToken : cancellationToken
);
}
var aggregate = _aggregateFactory.FromHistory <Document, DocumentState>(Enumerable.Empty <IEvent>());
if (aggregate == null)
{
throw new ArgumentNullException(nameof(aggregate));
}
aggregate.Upload(
subject: command.Subject,
user: command.Actor,
translationType: command.TranslationType,
fileName: command.File.FileName,
translationSubject: command.TranslationSubject
);
await _aggregateRepository.SaveAsync(aggregate, command, 0, cancellationToken);
}
public async Task StartAsync(TranslationRequest request)
{
int version = request.Version + 1;
var fileResult = await _fileClient.DownloadAsync(
fileName : $"{request.CorrelationId}{Path.GetExtension(request.FileName)}",
userId : request.UserId
);
string text;
using (var fileStream = await fileResult.OpenStreamAsync())
using (var textExtractor = TextExtractor.Open(fileStream, fileResult.ContentType))
{
text = await textExtractor.ExtractAsync();
}
var textChunks = text.ChunkWithDelimeters(5000, '.', '!', '?', ')', '"', '}', ']').ToArray();
await _eventPublisher.PublishAsync(new TranslationStarted(
aggregateId : request.AggregateId,
version : version,
correlationId : request.CorrelationId,
causationId : request.CausationId,
characterCount : textChunks.Sum(tc => tc.Length),
userId : request.UserId
));
try
{
for (int i = 0; i < textChunks.Count(); i++)
{
version++;
await _eventPublisher.PublishAsync(new TranslationCharactersProcessed(
aggregateId : request.AggregateId,
version : version,
correlationId : request.CorrelationId,
causationId : request.CausationId,
charactersProcessed : textChunks[i].Length,
userId : request.UserId
));
}
using (var stream = new MemoryStream())
using (TextWriter tw = new StreamWriter(stream))
{
await tw.WriteAsync("test");
await tw.FlushAsync();
stream.Position = 0;
await _fileClient.UploadAsync($"{request.AggregateId}.mp3", request.UserId, stream);
await _eventPublisher.PublishAsync(new TranslationSucceded(
aggregateId : request.AggregateId,
version : ++version,
correlationId : request.CorrelationId,
causationId : request.CausationId,
userId : request.UserId
));
}
}
catch (Exception e)
{
await _eventPublisher.PublishAsync(new TranslationFailed(
aggregateId : request.AggregateId,
version : ++version,
correlationId : request.CorrelationId,
causationId : request.CausationId,
error : e.Message,
userId : request.UserId
));
}
}
public async Task StartAsync(TranslationRequest request)
{
int version = request.Version + 1;
var fileResult = await _fileClient.DownloadAsync(
fileName : $"{request.CorrelationId}{Path.GetExtension(request.FileName)}",
userId : request.UserId
);
string text;
using (var fileStream = await fileResult.OpenStreamAsync())
using (var textExtractor = TextExtractor.Open(fileStream, fileResult.ContentType))
{
text = await textExtractor.ExtractAsync();
}
var textChunks = text.ChunkWithDelimeters(5000, '.', '!', '?', ')', '"', '}', ']');
await _eventPublisher.PublishAsync(new TranslationStarted(
aggregateId : request.AggregateId,
version : version,
correlationId : request.CorrelationId,
causationId : request.CausationId,
characterCount : textChunks.Sum(tc => tc.Length),
userId : request.UserId
));
try
{
var result = await _speechSynthesizer.TranslateTextAsync(new GoogleSpeechRequest(
voiceSelection : new VoiceSelectionParams
{
Name = request.TranslationSubject
},
audioConfig : new AudioConfig
{
AudioEncoding = AudioEncoding.Mp3
},
content : textChunks,
callback : async length =>
{
Interlocked.Increment(ref version);
await _semaphoreSlim.WaitAsync();
try
{
await _eventPublisher.PublishAsync(new TranslationCharactersProcessed(
aggregateId: request.AggregateId,
version: version,
correlationId: request.CorrelationId,
causationId: request.CausationId,
charactersProcessed: length,
userId: request.UserId
));
}
catch (Exception)
{
throw;
}
finally
{
_semaphoreSlim.Release();
}
}
));
using (var stream = await result.OpenStreamAsync())
{
await _fileClient.UploadAsync($"{request.AggregateId}.mp3", request.UserId, stream);
await _eventPublisher.PublishAsync(new TranslationSucceded(
aggregateId : request.AggregateId,
version : ++version,
correlationId : request.CorrelationId,
causationId : request.CausationId,
userId : request.UserId
));
}
}
catch (Exception e)
{
await _eventPublisher.PublishAsync(new TranslationFailed(
aggregateId : request.AggregateId,
version : ++version,
correlationId : request.CorrelationId,
causationId : request.CausationId,
error : e.Message,
userId : request.UserId
));
}
}
public async Task StartAsync(TranslationRequest request)
{
int version = request.Version + 1;
var fileResult = await _fileClient.DownloadAsync(
fileName : $"{request.CorrelationId.ToString()}{Path.GetExtension(request.FileName)}",
userId : request.UserId
);
string text;
using (var fileStream = await fileResult.OpenStreamAsync())
using (var textExtractor = TextExtractor.Open(fileStream, fileResult.ContentType))
{
text = await textExtractor.ExtractAsync();
}
var textChunks = text.ChunkWithDelimeters(100000, '.', '!', '?', ')', '"', '}', ']');
await _eventPublisher.PublishAsync(new TranslationStarted(
aggregateId : request.AggregateId,
version : version,
correlationId : request.CorrelationId,
causationId : request.CausationId,
characterCount : text.Length,
userId : request.UserId
));
try
{
var result = await _speechSynthesizer.TranslateTextAsync(new AWSSpeechRequest {
OutputFormat = "",
Content = textChunks,
VoiceId = request.TranslationSubject,
CallBack = async length =>
{
Interlocked.Increment(ref version);
await _semaphoreSlim.WaitAsync();
try
{
await _eventPublisher.PublishAsync(new TranslationCharactersProcessed(
aggregateId: request.AggregateId,
version: version,
correlationId: request.CorrelationId,
causationId: request.CausationId,
charactersProcessed: length,
userId: request.UserId
));
}
catch (Exception)
{
throw;
}
finally
{
_semaphoreSlim.Release();
}
}
});;
using (var stream = await result.OpenStreamAsync())
{
await _fileClient.UploadAsync($"{request.AggregateId}.mp3", request.UserId, stream);
await _eventPublisher.PublishAsync(new TranslationSucceded(
aggregateId : request.AggregateId,
version : version + 1,
correlationId : request.CorrelationId,
causationId : request.CausationId,
userId : request.UserId
));
}
}
catch (Exception e)
{
await _eventPublisher.PublishAsync(new TranslationFailed(
aggregateId : request.AggregateId,
version : version + 1,
correlationId : request.CorrelationId,
causationId : request.CausationId,
error : e.Message,
userId : request.UserId
));
}
}
