// method called when program booting
public Task StartAsync(CancellationToken cancellationToken)
{
try
{
// create exchange , queue and bind queue with exchange
Register(ExchangeName, QueueName, ExchangeArgu, ExchangeType);
if (_timer != null)
{
_timer.Dispose();
}
return(Task.CompletedTask);
}
catch (Exception ex)
{
_logger.LogError(ex, "failure when try register {CreationDate} {ExchangeName} {QueueName}",
DateTime.Now, ExchangeName, QueueName);
//retry to connect
_timer = new System.Timers.Timer();
// 2 minute
_timer.Interval = 120000;
_timer.Elapsed += _timer_Elapsed;
_timer.Start();
return(Task.CompletedTask);
}
}
public async Task <TResponse> Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate <TResponse> next)
{
try
{
return(await next());
}
catch (ValidationException)
{
_logger.LogWarning("{Status} {ReferenceNumber}", MessageLifeCycle.ValidationError, _referenceNumberService.ReferenceNumber);
throw;
}
catch (Exception ex)
{
_logger.LogError(ex, MessageLifeCycle.ExceptoinWhenProcessNewRequest, _referenceNumberService.ReferenceNumber);
throw;
}
}
private void OnConnectionBlocked(object sender, ConnectionBlockedEventArgs e)
{
_logger.LogError("ConnectionBlocked {CreationDate} {e}", DateTime.Now, Newtonsoft.Json.JsonConvert.SerializeObject(e));
}