public void OnError(Exception exception, CancellationToken cancellationToken)
{
_logger.Error(LogTag, exception);
Stop();
Listen(cancellationToken);
}
public void Stop()
{
_tokenSource.Cancel();
try
{
if (_preempter != null)
{
_logger.Debug(LogTag, "Waiting for preempter to stop...");
_preempter.Stop();
}
_logger.Debug(LogTag, "Waiting for task(s) to end...");
Task.WaitAll(_tasks.ToArray(), _tokenSource.Token);
}
catch (OperationCanceledException) { }
catch (AggregateException e)
{
foreach (var exception in e.WithoutCancellations().InnerExceptions)
{
_logger.Error(LogTag, exception);
}
}
OnStopped();
_logger.Debug(LogTag, "Stopped.");
}
public async Task TryAction(Func <Task> action, IMonitoredActivity activity, int attempts = 0)
{
try
{
await action().ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.Error(ex);
var handler = _handling.DetermineAction(ex, activity);
var continuation = await handler.Handle(ex, attempts + 1, activity);
switch (continuation)
{
case ExceptionAction.Retry:
await TryAction(action, activity, attempts + 1);
break;
case ExceptionAction.Pause:
await pause(activity).ConfigureAwait(false);
break;
case ExceptionAction.Stop:
await stop(activity).ConfigureAwait(false);
break;
case ExceptionAction.StopAll:
await stopAll().ConfigureAwait(false);
break;
}
}
}