/// <summary>
/// Главный метод разгребателя очереди на запись в бд.
/// </summary>
private async void Consume()
{
while (!_cancellationTokenSource.IsCancellationRequested)
{
while (_tasksToConsume.TryDequeue(out CurrencyRateOnDate task))
{
try
{
await _ratesStorage.InsertCurrencyRateAsync(task);
}
catch (CustomFailException)
{
_tasksToConsume.Enqueue(task);
}
catch (DuplicateNameException)
{
}
catch (Exception e)
{
_logger.Error(e.Message);
}
}
_taskAddedEvent.WaitOne(5000);
}
}
/// <inheritdoc />
public void AddCurrencyRatesOnDate(List <CurrencyRateOnDate> currency_rates)
{
Task.Factory.StartNew(async() =>
{
foreach (var rate in currency_rates)
{
if (_cancellationTokenSource.IsCancellationRequested)
{
return;
}
await _ratesStorage.InsertCurrencyRateAsync(rate).ContinueWith(task =>
{
if (task.Status != TaskStatus.Faulted)
{
return;
}
if (task.Exception.InnerExceptions.Any(ex => ex.InnerException is DuplicateNameException))
{
return;
}
if (task.Exception.InnerExceptions.Any(ex => ex.InnerException is CustomFailException))
{
AddCurrencyRatesOnDate(new List <CurrencyRateOnDate> {
rate
});
}
else
{
_logger.Error(task.Exception);
}
});
}
}, _cancellationTokenSource.Token, TaskCreationOptions.LongRunning, TaskScheduler.Default);
}
