private IMessage Handle(Delivery delivery)
{
if (delivery == null && Shutdown != null)
{
throw new ShutdownSignalException(Shutdown);
}
if (delivery == null)
{
return(null);
}
var body = delivery.Body;
var messageProperties = MessageHeadersConverter.ToMessageHeaders(delivery.Properties, delivery.Envelope, EncodingUtils.Utf8);
var accesor = RabbitHeaderAccessor.GetMutableAccessor(messageProperties);
accesor.ConsumerTag = delivery.ConsumerTag;
accesor.ConsumerQueue = delivery.Queue;
var message = Message.Create(body, accesor.MessageHeaders);
Logger?.LogDebug("Received message: {message}", message);
if (messageProperties.DeliveryTag() != null)
{
DeliveryTags.Add(messageProperties.DeliveryTag().Value);
}
if (Transactional && !LocallyTransacted)
{
ConnectionFactoryUtils.RegisterDeliveryTag(ConnectionFactory, Channel, delivery.Envelope.DeliveryTag);
}
return(message);
}
/// <summary>Perform a commit or message acknowledgement, as appropriate</summary>
/// <param name="locallyTransacted">if set to <c>true</c> [locally transacted].</param>
/// <returns>True if committed, else false.</returns>
public bool CommitIfNecessary(bool locallyTransacted)
{
if (this.deliveryTags == null || this.deliveryTags.Count < 1)
{
return(false);
}
try
{
var ackRequired = !this.acknowledgeMode.IsAutoAck() && !this.acknowledgeMode.IsManual();
if (ackRequired)
{
if (this.transactional && !locallyTransacted)
{
// Not locally transacted but it is transacted so it
// could be synchronized with an external transaction
foreach (var deliveryTag in this.deliveryTags)
{
ConnectionFactoryUtils.RegisterDeliveryTag(this.connectionFactory, this.channel, deliveryTag);
}
}
else
{
if (this.deliveryTags != null && this.deliveryTags.Count > 0)
{
var copiedTags = new List <long>(this.deliveryTags);
if (copiedTags.Count > 0)
{
var deliveryTag = copiedTags[copiedTags.Count - 1];
this.channel.BasicAck((ulong)deliveryTag, true);
}
}
}
}
if (locallyTransacted)
{
// For manual acks we still need to commit
RabbitUtils.CommitIfNecessary(this.channel);
}
}
finally
{
this.deliveryTags.Clear();
}
return(true);
}