netch/Netch/Utils/ServerHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using Netch.Interfaces;

namespace Netch.Utils
{
    public static class ServerHelper
    {
        static ServerHelper()
        {
            var serversUtilsTypes = Assembly.GetExecutingAssembly()
                .GetExportedTypes()
                .Where(type => type.GetInterfaces().Contains(typeof(IServerUtil)));

            ServerUtilDictionary = serversUtilsTypes.Select(t => (IServerUtil)Activator.CreateInstance(t)!).ToDictionary(util => util.TypeName);
        }

        public static Dictionary<string, IServerUtil> ServerUtilDictionary { get; }

        public static IServerUtil GetUtilByTypeName(string typeName)
        {
            return ServerUtilDictionary.GetValueOrDefault(typeName) ?? throw new NotSupportedException("Specified server type is not supported.");
        }

        public static IServerUtil? GetUtilByUriScheme(string scheme)
        {
            return ServerUtilDictionary.Values.SingleOrDefault(i => i.UriScheme.Any(s => s.Equals(scheme)));
        }

        public static Type GetTypeByTypeName(string typeName)
        {
            return GetUtilByTypeName(typeName).ServerType;
        }
    }
}