I've been working on a project where I need Nservicebus to be hosted in IIS. I need the MVC3 webapplication to send a message, a nservicebus host should handle this message and then send back some sort of message to the webapplication.
the Async Pages example http://docs.particular.net/samples/web/asp-mvc-application/ shows one way of doing it. I can get this to work, however this does not fully furfill my requirements. I need an object to be returned from the handler, not just an int.
To get this to work i've tried setting up a host under IIS, in my Global.asax I've got this code:
Bus = Configure.WithWeb()
.DefineEndpointName("CQRS")
.Log4Net()
.DefaultBuilder()
.DisableTimeoutManager()
.XmlSerializer()
.MsmqTransport()
.IsTransactional(true)
.PurgeOnStartup(false)
.InMemorySubscriptionStorage()
.UnicastBus()
.AllowSubscribeToSelf()
.ImpersonateSender(false)
.LoadMessageHandlers()
.CreateBus().Start();
my web.config:
<MessageForwardingInCaseOfFaultConfig ErrorQueue="CQRS.error" />
<MsmqTransportConfig NumberOfWorkerThreads="1" MaxRetries="5" />
<UnicastBusConfig DistributorControlAddress="" DistributorDataAddress="" TimeoutManagerAddress="CQRS.timeouts">
<MessageEndpointMappings>
<add Messages="Nokavision.InvoiceProcessing.CQRS.Messages" Endpoint="CQRS" />
<add Messages="NServiceBus.Scheduling.Messages.ScheduledTask" Endpoint="CQRS" />
</MessageEndpointMappings>
</UnicastBusConfig>
Sending messages with the Bus object works perfectly, a message appears in the "cqrs" queue. The handler within the webapplication however does not trigger. This is the code:
public class UpdateInkoopFactuurAlgemeenHandler : IHandleMessages<UpdateInkoopFactuurAlgemeenCommand>
{
public IBus Bus { get; set; }
public void Handle(UpdateInkoopFactuurAlgemeenCommand message)
{
P2PEntities entities = new P2PEntities();
var factuur = (from f in entities.Documenten.OfType<InkoopFactuur>()
where f.DocumentId == message.DTO.DocumentId
select f).FirstOrDefault();
if (factuur != null)
{
factuur.FactuurNummer = message.DTO.FactuurNummer;
entities.SaveChanges();
}
//Bus.Return(new UpdateInkoopFactuurAlgemeenResponse(message.DTO.ClientConnectionId));
}
}
I'm sure I'm missing something small here but what am I doing wrong, why doesn't the handler get triggered while I can clearly see a message in the queue. Also on the Bus object I can see the handler being loaded.
