protected virtual void ForwardToPoisonMessageExchange(BasicDeliverEventArgs message, Exception exception)
{
Log.Info("Message '{0}' is a poison message.", message.MessageId());
this.AppendException(message, exception);
message.SetAttemptCount(0);
this.adapter.AppendRetryAddress(message);
this.ForwardTo(message, this.configuration.PoisonMessageExchange);
}
protected virtual int AppendException(BasicDeliverEventArgs message, Exception exception)
{
if (exception == null)
return 0;
var currentAttempt = message.GetAttemptCount();
message.SetAttemptCount(currentAttempt + 1); // 1-based value
this.adapter.AppendException(message, exception, currentAttempt);
return currentAttempt;
}
protected virtual void RetryMessage(BasicDeliverEventArgs message, Exception exception)
{
var nextAttempt = message.GetAttemptCount() + 1;
message.SetAttemptCount(nextAttempt);
// 0-based to 1-based value
Log.Debug("Message '{0}' has been attempted {1} times.", message.MessageId(), nextAttempt);
if (nextAttempt > this.configuration.MaxAttempts)
this.ForwardToPoisonMessageExchange(message, exception);
else
this.ForwardTo(message, this.configuration.InputQueue.ToPublicationAddress());
}
