Udi Dahan ADSD refactoring

gistfile1.txt

    public class CC1 : IHandleMessages<MakeCustomerPreferred>
    {
        public IBus Bus { get; set; }
        public void Handle(MakeCustomerPreferred message)
        {
            Bus.Publish<CustomerHasBeenMadePreferred>(m => m.CustomerId = message.CustomerId);
        }
    }

    public class BillingSagaData : IContainSagaData
    {
        public Guid Id { get; set; }
        public string Originator { get; set; }
        public string OriginalMessageId { get; set; }
        public bool IsPreferred { get; set; }
        public Guid CustomerId { get; set; }
    }

    public class BillingSaga : NServiceBus.Saga.Saga<BillingSagaData>,
        IAmStartedByMessages<OrderAccepted>,
        IAmStartedByMessages<CustomerHasBeenMadePreferred>
    {
        public override void ConfigureHowToFindSaga()
        {
            ConfigureMapping<OrderAccepted>(s => s.CustomerId, m => m.CustomerId);
        }
        public void Handle(CustomerHasBeenMadePreferred message)
        {
            Data.IsPreferred = true;
            Data.CustomerId = message.CustomerId;
        }

        public void Handle(OrderAccepted message)
        {
            Data.CustomerId = message.CustomerId;

            if (Data.IsPreferred)
                Bus.Send<DiscountOrderBecauseCustomerBecamePreferred>(m => m.OrderId = message.OrderId);
            else
                RequestTimeout(TimeSpan.FromHours(1), message.OrderId);
        }

        public override void Timeout(object state)
        {
            if (Data.IsPreferred)
                Bus.Send<DiscountOrderBecauseCustomerBecamePreferred>(m => m.OrderId = message.OrderId);
        }
    }

    public class B2: IHandleMessages<DiscountOrderBecauseCustomerBecamePreferred>
    {
        public void Handle(DiscountOrderBecauseCustomerBecamePreferred message)
        {
            var o = ORM.Get<Order>(message.OrderId);
            o.Discount(10.Percent);
        }
    }

    public class MakeCustomerPreferred : IMessage
    {
        public Guid CustomerId { get; set; }
    }
    public interface CustomerHasBeenMadePreferred : IMessage
    {
        Guid CustomerId { get; set; }
    }
    public class DiscountOrderBecauseCustomerBecamePreferred : IMessage
    {
        public Guid OrderId { get; set; }
    }