hello-aspnet-core/AspNetCoreDefaultHost/Configs/HostConfig.cs

using AspNetCoreDefaultHost.Pages.Basic;
using AspNetCoreSsrTemplateEngine;
using AspNetCoreSsrTemplateEngine.DataBoundContext;
using AspNetCoreSsrTemplateEngine.Renders;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using System;
using System.Linq;
using System.Reflection;
using Unity;

namespace AspNetCoreDefaultHost.Configs
{
    internal class HostConfig
    {
        public static IUnityContainer RootContainer { get; private set; }

        public static IReadonlyDataBindContext RootDataBindContext { get; private set; }

        public static IComponentResolver RootComponentResolver { get; private set; }

        public static void Init(IServiceProvider services)
        {
            var con = new UnityContainer();
            var dbc = new SimpleDataBindContext();

            RootContainer = con;
            RootDataBindContext = dbc;
            RootComponentResolver = new UnityContainerComponentResolver(con);

            con.RegisterInstance(services);

            LoadGlobalConfig(dbc);
            RegisterComponents(con);
        }

        private static void RegisterComponents(IUnityContainer con)
        {
            var logger = con.Resolve<IServiceProvider>().GetRequiredService<ILogger<HostConfig>>();

            var components = Assembly.GetExecutingAssembly().GetTypes()
                                  .Where(p => p.IsAbstract == false && p.IsSubclassOf(typeof(ComponentBase)))
                                  .Select(Activator.CreateInstance)
                                  .Cast<ComponentBase>().ToArray();

            foreach (var component in components)
            {
                logger.LogInformation($"Registering component `{component.GetType().FullName}'");
                con.RegisterInstance(component.GetType(), component);
                con.RegisterInstance<IRender>(component.GetType().Name, component);
            }

            foreach (var component in components)
            {
                logger.LogInformation($"Initializing component `{component.GetType().FullName}'");
                component.Init();
            }
        }

        private static void LoadGlobalConfig(SimpleDataBindContext dbc)
        {
            dbc.PutValue("SITE_NAME", "STE:DEMO");
        }
    }
}