Approaches to use Repositories (w/ StructureMap) with AutoMapper?

Question

Any idea how I can tell AutoMapper to resolve a TypeConverter constructor argument using StructureMap?

ie. We have this:

    private class StringIdToContentProviderConverter : TypeConverter<string, ContentProvider> {
        private readonly IContentProviderRepository _repository;

        public StringIdToContentProviderConverter(IContentProviderRepository repository) {
            _repository = repository;
        }

        public StringIdToContentProviderConverter() {
            _repository = ObjectFactory.GetInstance<IContentProviderRepository>();
        }

        protected override ContentProvider ConvertCore(string contentProviderId) {
            return _repository.Get(new Guid(contentProviderId));
        }
    }

And in the AutoMap registration:

        Mapper.CreateMap<Guid, ContentProvider>().ConvertUsing<GuidToContentProviderConverter>();

However, I don't like the idea of hardwiring an ObjectFactory.GetInstance in my constructor for the converter. Any ideas how I can tell AutoMapper how to resolve my IContentProviderRepository?

Or ideas to other approaches for using Automapper to hydrate domain objects from viewmodel ID's using a repository?

Answer 1

The ConstructUsing method seems to have an overload that accepts a Func<T1,T2> . In there you could access your container.

EDIT: Convert also knows such an overload such that you could do:

Mapper.CreateMap<A, B>().ConvertUsing(i=> c.With(i).GetInstance<B>());

Where c is your container

Answer 2

We use this (in one of our Bootstrapper tasks)...

        private IContainer _container; //Structuremap container

        Mapper.Initialize(map =>
        {
            map.ConstructServicesUsing(_container.GetInstance);
            map.AddProfile<MyMapperProfile>();
        }