/// <summary>
/// Processa o comando: DataSaveToFile
/// </summary>
/// <param name="request">Comando</param>
/// <param name="cancellationToken">CancellationToken</param>
/// <returns>Task</returns>
public async Task <Unit> Handle(DataSaveToFile request, CancellationToken cancellationToken)
{
const int delayToCheck = 100;
const int delayToAction = 500;
if (!request.SaveImmediately)
{
Log.Verbose("Application data save requested. Waiting {Milliseconds} milliseconds.",
delayToAction);
}
else if (_stopwatchDataSaveToFile != null)
{
Log.Verbose(
"Application data save immediately requested, but there is a task in progress that must be awaited.");
}
else
{
Log.Verbose("Application data save immediately requested.");
}
if (_stopwatchDataSaveToFile != null)
{
_stopwatchDataSaveToFile.Restart();
return(await Task.Run(async() =>
{
while (_stopwatchDataSaveToFile != null)
{
await Task.Delay(delayToCheck, cancellationToken);
}
return Unit.Value;
}, cancellationToken));
}
_stopwatchDataSaveToFile = new Stopwatch();
_stopwatchDataSaveToFile.Start();
while (!request.SaveImmediately &&
_stopwatchDataSaveToFile != null &&
_stopwatchDataSaveToFile.ElapsedMilliseconds < delayToAction)
{
await Task.Delay(delayToCheck, cancellationToken);
}
var data = Program.Data;
try
{
_dataManipulation.SaveToFile(data);
Log.Debug("Application data saved to: {Path}", _dataManipulation.Path);
await _messageBus.Publish(new DataSavedToFile(request), cancellationToken);
}
catch (Exception exception)
{
Log.Error(exception, "Application data cannot save to: {Path}", _dataManipulation.Path);
}
_stopwatchDataSaveToFile = null;
return(Unit.Value);
}