[rabbitmq-discuss] Reading multiple messages in RabbitMQ
Demi Zike
habtdemis at gmail.com
Wed Jul 20 15:50:01 BST 2011
Hi,
I use Subscription from the RabbitMQ.Client.MessagePatterns namespace to
subscribe to multiple queues. I then read messages based on the subscription
(code below). However, I am not able to read messages other than the first
one. i.e. Whether I try to read from multiple queues(subscriptions) or a
single queue(subscription). I do Ack() at each iteration of the message
reading. Could you see where the run time error originated at for me?
Thanks
private List<Subscription> subscriptions = new List<Subscription>();
Subscription sub = null;
public Measurement readMessage()
{
Measurement m = new Measurement();
foreach(Subscription element in subscriptions)
{
if( element.QueueName == null)
{
m = null;
}
else
{
BasicDeliverEventArgs ev = element.Next();
if( ev != null) {
m = Measurement.AltDeSerialize( ev.Body );
m.id = element.QueueName;
element.Ack();
return m;
}
m = null;
element.Ack();
}
}
System.Console.WriteLine("No message in the queue(s) at this
time.");
return m;
}
public void subscribeToQueue(string queueName)
{
sub = new Subscription(channel, queueName);
subscriptions.Add(sub);
}
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