private void SetupEventPipeline(EventPipelineBuilder builder)
{
builder
.AddMiddleware(new Events.PipelineMiddlewares.EventHandlerLocatorMiddleware(
typeof(EventsTests).GetTypeInfo().Assembly))
.AddMiddleware(new Events.PipelineMiddlewares.EventHandlerResolverMiddleware())
.AddMiddleware(new Events.PipelineMiddlewares.EventHandlerExecutorMiddleware
{
UseParametersResolve = true
});
}
/*
* This example will hold all domain events until your transaction have been completed.
* That's great since failing transactions won't result in events for stuff that hasn't been persisted.
*
* To keep the example simple we'll use a fake transaction.
*
*/
static void Main(string[] args)
{
// configure Griffin.Container
var container = ConfigureGriffinContainer();
var dbContext = new FakeDbContext();
// Use a synchronous IoC dispatcher
var builder = new EventPipelineBuilder(new ErrorHandler());
var dispatcher = builder
.WaitOnTransactions(dbContext) //do not release events if a transaction is active
.UseGriffinContainer(container) //use Griffin.Container
.Build(); // Build the pipeline dispatcher
Console.WriteLine("Step 1. A simple publising");
Console.WriteLine("=============================");
DomainEvent.Assign(dispatcher);
// Will be published directly
DomainEvent.Publish(new UserRegistered("Arne"));
Console.WriteLine();
Console.WriteLine("Step 1. Disposed Uow = no events");
Console.WriteLine("=============================");
using (var uow = dbContext.CreateUnitOfWork())
{
Console.WriteLine("** Nothing should come between this line");
DomainEvent.Publish(new UserRegistered("Arne"));
Console.WriteLine("** ...and this line...");
//no save = rollback
}
Console.WriteLine("* this should come directly after 'And this line...'");
Console.WriteLine();
Console.WriteLine("Step 3. Uow = dispatch after");
Console.WriteLine("=============================");
using (var uow = dbContext.CreateUnitOfWork())
{
Console.WriteLine("** Nothing should come between this line");
DomainEvent.Publish(new UserRegistered("Arne"));
Console.WriteLine("** ...and this line...");
uow.SaveChanges();
}
Console.WriteLine("** Two domain messages should have come.");
// and wait
Console.ReadLine();
}
/// <summary>
/// Use Griffin.Container to dispatch events
/// </summary>
/// <param name="builder">this</param>
/// <param name="griffinContainer">Your created container, look at the Griffin.Container HP for instructions on how to build it.</param>
/// <returns>this</returns>
public static EventPipelineBuilder UseGriffinContainer(this EventPipelineBuilder builder,
IParentContainer griffinContainer)
{
if (builder == null)
{
throw new ArgumentNullException("builder");
}
if (griffinContainer == null)
{
throw new ArgumentNullException("griffinContainer");
}
builder.UseContainer(new ContainerAdapter(griffinContainer));
return(builder);
}
