private bool TryGetRequest(ConcurrentQueueingConsumer consumer, out HttpRequestPacket request, out MessageDispatch dispatch)
{
request = null;
dispatch = null;
BasicDeliverEventArgs item;
if (!consumer.TryInstantDequeue(out item, throwIfClosed: false))
{
return(false);
}
//TODO: Pool MessageDispatch
//Get message
dispatch = new MessageDispatch {
Consumer = consumer, Delivery = item
};
//Deserialize message
bool wasDeserialized = true;
try
{
request = HttpRequestPacket.Deserialize(item.Body);
}
catch
{
wasDeserialized = false;
}
if (wasDeserialized)
{
//Add/Update Subscriber-Id header
request.Headers[Common.Shared.SUBSCRIBER_ID_HEADER] = this.subscriberIdHeader;
//Add redelivered header if item was redelivered.
if (item.Redelivered)
{
request.Headers[Common.Shared.REDELIVERED_HEADER] = TRUE_STRING_ARRAY;
}
}
//Reject message if deserialization failed.
else if (!wasDeserialized && Settings.AckBehavior != SubscriberAckBehavior.Automatic)
{
consumer.Model.BasicReject(item.DeliveryTag, false);
return(false);
}
return(true);
}
private bool TryGetRequest(SharedQueue <BasicDeliverEventArgs> queue, out HttpRequestPacket request, out IBasicProperties properties)
{
object obj;
BasicDeliverEventArgs evt;
request = null;
properties = null;
obj = queue.DequeueNoWait(null);
if (obj != null)
{
evt = (BasicDeliverEventArgs)obj;
}
else
{
return(false);
}
//Get message properties
properties = evt.BasicProperties;
//Deserialize message
bool wasDeserialized = true;
try
{
request = HttpRequestPacket.Deserialize(evt.Body);
//Add/Update Content-Length Header
request.Headers["Content-Length"] = new string[] { (request.Content == null ? 0 : request.Content.Length).ToString() };
//Add/Update Subscriber-Id header
request.Headers[Common.Shared.SUBSCRIBER_ID_HEADER] = new string[] { this.subscriberId };
}
catch
{
wasDeserialized = false;
}
//Ack or reject message
if (evt.ConsumerTag == workConsumer.ConsumerTag)
{
if (wasDeserialized)
{
workConsumer.Model.BasicAck(evt.DeliveryTag, false);
return(true);
}
else
{
workConsumer.Model.BasicReject(evt.DeliveryTag, false);
return(false);
}
}
else if (evt.ConsumerTag == subscriberConsumer.ConsumerTag)
{
if (wasDeserialized)
{
subscriberConsumer.Model.BasicAck(evt.DeliveryTag, false);
return(true);
}
else
{
subscriberConsumer.Model.BasicReject(evt.DeliveryTag, false);
return(false);
}
}
else
{
throw new InvalidOperationException("Message was dequeued by an unexpected/unknown consumer");
}
}