private void ListenToInternal <TEvent, THandler>()
where TEvent : Event
where THandler : IHandler <TEvent>
{
var queueUrl = _eventBusInitializer.GetQueueUrl <TEvent>();
var handler = Activator.CreateInstance <THandler>();
Task.Factory.StartNew(async() =>
{
while (true)
{
var eventsReceived = await _sqsOperations.Dequeue(queueUrl);
foreach (var eventReceivedRaw in eventsReceived)
{
_logger.Info($"Received {typeof(TEvent)}", eventReceivedRaw.Body);
var eventReceived = JsonConvert.DeserializeObject <SqsPulledObject>(eventReceivedRaw.Body);
try
{
var isHandledSuccessfully = await handler.HandleAsync(JsonConvert.DeserializeObject <TEvent>(eventReceived.Message));
if (isHandledSuccessfully)
{
#pragma warning disable CS4014
Task.Run(() => _sqsOperations.Delete(queueUrl, eventReceivedRaw));
#pragma warning restore CS4014
}
else
{
//TODO
//Dead letter queue
}
}
catch (Exception e)
{
_logger.Error($"An unexpected error happened when processing the message {typeof(TEvent)}. {e}");
}
}
}
},
_eventBusInitializer.GetCancellationToken <TEvent>().Token,
TaskCreationOptions.LongRunning, TaskScheduler.Default);
}
