#Obvs.MessageDispatcher.Autofac

Provides integration support between the core Obvs.MessageDispatcher framework and the Autofac dependency injection framework in the form of an IMessageHandlerSelector implementation which resolves instances of IMessageHandler<TMessage> from a specified Autofac container.

##Basic configuration Configuration of this integration would look like this:

// Configure and create an Obvs service bus instance
var myObvsServiceBusConfiguration = ConfigureServiceBus();
var serviceBus = myServiceBusConfiguration.CreateServiceBus();
IContainer myAutofacContainer = BuildAutofacContainer();

// Create a message dispatcher for the events that are coming off the service bus
var dispatcherConfiguration = serviceBus.CreateMessageDispatcherFor(sb => sb.Events);

// Configure the dispatcher to use the IMessageHandlerSelector factory which will
// resolve IMessageHandler<TMessage> instances from the supplied Autofac container
dispatcherConfiguration.WithAutofacMessageHandlerSelectorFactory(myAutofacContainer);

// Start the message dispatcher
dispatcherConfiguration.DispatchMessages();

##Autofac Integration Details

###Configuration Extensions

This library also contains an extension method for Autofac's ContainerBuilder to help register any instances of IMessageHandler<TMessage> found in any specified assemblies:

var containerBuilder = new ContainerBuilder();

containerBuilder.RegisterMessageHandlers(typeof(MyProgram).Assembly);

###Lifetime Scopes The WithAutofacMessageHandlerSelector extension method provides a factory method which begins a new Autofac lifetime scope by calling IContainer::BeginLifetimeScope on the supplied IContainer instance.