private void SetQosAndCreateConsumers()
{
if (!AcknowledgeMode.IsAutoAck() && !Cancelled)
{
// Set basicQos before calling basicConsume (otherwise if we are not acking the broker
// will send blocks of 100 messages)
try
{
Channel.BasicQos(0, PrefetchCount, true);
}
catch (Exception e)
{
ActiveObjectCounter.Release(this);
throw new RabbitIOException(e);
}
}
try
{
if (!Cancelled)
{
foreach (var queueName in Queues)
{
if (!MissingQueues.Contains(queueName))
{
ConsumeFromQueue(queueName);
}
}
}
}
catch (Exception e)
{
throw RabbitExceptionTranslator.ConvertRabbitAccessException(e);
}
}
private void HandleDeclarationException(int passiveDeclareRetries, DeclarationException e)
{
if (passiveDeclareRetries > 0 && Channel.IsOpen)
{
Logger?.LogWarning(e, "Queue declaration failed; retries left={retries}", passiveDeclareRetries);
try
{
Thread.Sleep(FailedDeclarationRetryInterval);
}
catch (Exception e1)
{
Declaring = false;
ActiveObjectCounter.Release(this);
throw RabbitExceptionTranslator.ConvertRabbitAccessException(e1);
}
}
else if (e.FailedQueues.Count < Queues.Count)
{
Logger?.LogWarning("Not all queues are available; only listening on those that are - configured: {queues}; not available: {notavail}", string.Join(',', Queues), string.Join(',', e.FailedQueues));
lock (MissingQueues)
{
foreach (var q in e.FailedQueues)
{
MissingQueues.Add(q);
}
}
LastRetryDeclaration = DateTimeOffset.Now.ToUnixTimeMilliseconds();
}
else
{
Declaring = false;
ActiveObjectCounter.Release(this);
throw new QueuesNotAvailableException("Cannot prepare queue for listener. Either the queue doesn't exist or the broker will not allow us to use it.", e);
}
}