public static IServiceCollection AddModularStartup <THost>(this IServiceCollection services, IConfiguration configuration)
where THost : AppHostBase
{
if (TopLevelAppModularStartup.Instance != null)
{
throw new NotSupportedException($"{nameof(AddModularStartup)} has already been called");
}
var ci = typeof(THost).GetConstructor(Type.EmptyTypes);
if (ci == null)
{
throw new NotSupportedException($"{typeof(THost).Name} requires a parameterless constructor");
}
var host = (THost)ci.Invoke(TypeConstants.EmptyObjectArray);
var dlls = new List <Assembly>(host.ServiceAssemblies)
{
typeof(THost).Assembly
};
var types = dlls.Distinct().SelectMany(x => x.GetTypes())
.Where(x => x != typeof(TopLevelAppModularStartup)).ToList();
var startup = TopLevelAppModularStartup.Create(host, configuration, () => types);
startup.ConfigureServices(services);
return(services);
}
public static ModularStartup Create <THost>(THost instance,
IConfiguration configuration, Func <IEnumerable <Type> > typesResolver)
where THost : AppHostBase
{
instance.Configuration = configuration;
return(Instance = new TopLevelAppModularStartup(typeof(THost), instance, configuration, typesResolver));
}
