public async Task Handle(StartProcessingFile message, IMessageHandlerContext context)
{
if (Data.HasStarted)
{
_log.Info("Saga has started");
return;
}
_log.Info("Hello from FileProcessor handler");
_log.InfoFormat("Processing file '{0}' from location '{1}', TotalRecordCount {2}", message.FileName,
message.FilePath, message.TotalRecordCount);
await PopulateSagaData(message);
// Start processing by retrieving the file
// breaking the content into chunks
// process each chunk
// move the file into "processed" folder
MarkAsComplete();
_log.Warn("Saga Complete");
await Task.CompletedTask;
}
private string ProcessFile(string file, string outPath)
{
var inPlaylist = ReadPlaylist(file);
if (inPlaylist != null)
{
StartProcessingFile?.Invoke(this, new ProgressEventArgs(file, inPlaylist.Length));
string targetDirectory = string.Empty;
if (_targetStorage is MtpStorage)
{
targetDirectory = HandleContent(file, inPlaylist, AppDomain.CurrentDomain.BaseDirectory, _sourceStorage);
CreateTargetPlaylist(inPlaylist, file, targetDirectory, _sourceStorage);
return(targetDirectory);
}
else
{
targetDirectory = HandleContent(file, inPlaylist, outPath, _targetStorage);
CreateTargetPlaylist(inPlaylist, file, targetDirectory, _targetStorage);
return(targetDirectory);
}
}
else
{
StartProcessingFile?.Invoke(this, new ProgressEventArgs(file, 0));
return(string.Empty);
}
}
private async Task PopulateSagaData(StartProcessingFile startingMessage)
{
Data.HasStarted = true;
Data.ImportId = startingMessage.ImportId;
Data.FileName = startingMessage.FileName;
Data.FilePath = startingMessage.FilePath;
Data.TotalRecordCount = startingMessage.TotalRecordCount;
await Task.CompletedTask;
}
private void CopyToDevice(string inPlaylistName, string fromDirectory, string toDirectory)
{
var targetDirectory = CreateTargetDirectory(inPlaylistName, toDirectory, _targetStorage);
foreach (var sourceFile in _sourceStorage.Directory.GetFiles(fromDirectory, SearchOption.AllDirectories))
{
var targetFile = GetTargetFilePath(targetDirectory, sourceFile);
StartProcessingFile?.Invoke(this, new ProgressEventArgs(targetFile, 0));
_targetStorage.File.Create(targetFile, _sourceStorage.File.Read(sourceFile));
}
}
private int CopyContent(string targetDirectory, PlaylistItem[] playlistItems, IStorage storage)
{
int fileCopyCount = 0;
foreach (var playlistItem in playlistItems)
{
var sourceFile = playlistItem.FileName;
var targetFile = GetTargetFilePath(targetDirectory, sourceFile, ++fileCopyCount);
StartProcessingFile?.Invoke(this, new ProgressEventArgs(targetFile, 0));
storage.File.Create(targetFile, _sourceStorage.File.Read(sourceFile));
playlistItem.FileName = Path.GetFileName(targetFile);
}
return(fileCopyCount);
}
