private static ICompositionRoot GetCompositionRoot(IAssemblyWrapper assembly)
{
var compositionRootType = GetImplementationTypeOfCompositionRoot(assembly);
if (compositionRootType != null)
{
return((ICompositionRoot)compositionRootType.GetNewInstance());
}
var registerDependenciesAttributes = assembly.GetAttributes <RegisterDependenciesAttribute>();
var registerDependenciesByAttributes = assembly.GetAttributes <RegisterDependenciesByAttribute>();
if (registerDependenciesAttributes.IsEmpty() && registerDependenciesByAttributes.IsEmpty())
{
return(null);
}
return(new DefaultCompositionRoot(registerDependenciesAttributes, registerDependenciesByAttributes, assembly.Assembly));
}
private static Type GetImplementationTypeOfCompositionRoot(IAssemblyWrapper assembly)
{
var compositionRootAttributes = assembly.GetAttributes <CompositionRootAttribute>();
if (compositionRootAttributes.Any())
{
return(compositionRootAttributes.Single().CompositionRootType);
}
var compositionRootTypes = SearchCompositionRootTypes(assembly);
if (compositionRootTypes.HasSeveralElements())
{
throw new SeveralCompositionRootsWasFoundException(assembly, compositionRootTypes);
}
return(compositionRootTypes.SingleOrDefault());
}
