Injecting NServiceBus using structuremap without global.asax - asp.net-mvc-4

Question

I am new to NServiceBus and struggling to inject IBus in my controller using structure map. Actually after doing a little research i found that we can inject it by putting below code in Application_Start event of global.asax -
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
BundleConfig.RegisterBundles(BundleTable.Bundles);
Configure.With()
.Log4Net()
.StructureMapBuilder()
.XmlSerializer()
.MsmqTransport()
.IsTransactional(false)
.PurgeOnStartup(false)
.UnicastBus()
.ImpersonateSender(false)
.CreateBus();
}
and in my controller I can use IBus as property or constructor injection:
private IBus Bus { get; set; }
private ITest Test { get; set; }
public MyLinkController(IBus bus, ITest test)
{
Bus = bus;
Test = test;
}
This works fine and inject bus without any problem. But my problem is I do not have control over global.asax, so i want to put the configuration somewhere else e.g. i tried putting it in structuremap registry like below:
For<IBus>().Use(
() =>
NServiceBus.Configure.With()
.Log4Net()
.StructureMapBuilder()
.XmlSerializer()
.IsTransactional(true)
.PurgeOnStartup(false)
.UnicastBus()
.ImpersonateSender(false)
.CreateBus()
.Start()
);
But it doesn't help. Looks like structure map needs to know the configuration before its own initialization.
So is there any way to do it without application_start event?

Answer 1

I was able to do it through structure-map itself. This is how I changed my structure-map registry:
public ServiceBusRegistry()
{
ForSingletonOf<IBus>().Use(
NServiceBus.Configure.With()
.Log4Net()
.DefaultBuilder()
.XmlSerializer()
.MsmqTransport()
.IsTransactional(false)
.PurgeOnStartup(false)
.UnicastBus()
.ImpersonateSender(false)
.CreateBus()
.Start()
);
}
After putting this in Registry class of structure map, I am able to inject IBus in my controller:
public MyController(IRepository<Test, int> repository, IBus bus)
{
_repository = repository;
_bus = bus;
}
Notice, here I used DefaultBuilder instead of StructureMapBuilder. I may try to improve it in further in future, But as of now its working fine for me.
UPDATED (after our project design changed):
Now we have a startup class in our API project(the project is ASP.NET web API) though we dont use global.asax's Application_start, we are able to put the startup code in this startup class:
[assembly: WebActivatorEx.PreApplicationStartMethod(typeof(WebApiPreStartup), "Start", Order = -999)] //make sure we are first
namespace ADP.DS.FrontOffice.Quoting.WebApi
{
public static class WebApiPreStartup
{
public static void Start()
{
GlobalFilterConfig.Configure(GlobalConfiguration.Configuration);
BusConfig.Init();
}
}
}
and the configuration is in separate class:
public static void Init()
{
Configure.Serialization.SystemXml();
Configure.ScaleOut(s => s.UseSingleBrokerQueue());
var configUnicastBus = Configure.With()
.StructureMapBuilder(ObjectFactory.Container)
.UseTransport<NServiceBus.RabbitMQ>()
.PurgeOnStartup(false)
.UnicastBus();
configUnicastBus.SendOnly();
}