/// <summary>
    /// 插件模型(xing)
    /// Author:Lind
    /// 可(ke)以被持(chi)久化到(dao)數據(ju)庫里，方便(bian)松插(cha)撥
    /// 根據數據庫的值，生產對應(ying)的實例
    /// </summary>
    public class PluginModel : Entity
    {
        /// <summary>
        /// 模塊名稱(cheng)：對插件進(jin)行分類管理
        /// </summary>
        public string ModuleName { get; set; }
        /// <summary>
        /// 類(lei)(lei)型(xing)顯示(shi)名稱，模塊下面的類(lei)(lei)型(xing)列表，一個模塊可以有多(duo)種類(lei)(lei)型(xing)
        /// </summary>
        public string TypeName { get; set; }
        /// <summary>
        /// 類(lei)型完整路徑，命令名稱(cheng)+類(lei)名
        /// </summary>
        public string TypeFullName { get; set; }
    }

    /// <summary>
    /// 可插拔(ba)組件的管理者
    /// Author:Lind
    /// 依賴于Autofac
    /// </summary>
    public class PluginManager
    {
        /// <summary>
        /// 插(cha)件(jian)容(rong)器輔助字段(duan)
        /// </summary>
        private static IContainer _container = null;
        /// <summary>
        /// 互斥(chi)鎖
        /// </summary>
        private static object lockObj = new object();
        /// <summary>
        /// 類的構造(zao)方法
        /// </summary>
        static PluginManager()
        {

            lock (lockObj)
            {
                if (_container == null)
                {
                    lock (lockObj)
                    {
                        try
                        {
                            Console.WriteLine("開始(shi)注冊(IPlugins)所有插件(jian)...");
                            var builder = new ContainerBuilder();

                            foreach (var item in AssemblyHelper.GetTypesByInterfaces(typeof(IPlugins)))
                            {
                                builder.RegisterType(item)
                                      .Named(item.FullName, item.GetInterfaces().FirstOrDefault());
                            }
                            _container = builder.Build();
                        }
                        catch (Exception)
                        {
                            throw new ArgumentException("PluginManager依賴于autofac包包...");
                        }

                    }
                }
            }

        }
        /// <summary>
        /// 從(cong)插(cha)件容器里返回對象
        /// </summary>
        /// <param name="serviceName"></param>
        /// <param name="serviceType"></param>
        /// <returns></returns>
        public static object Resolve(string serviceName, Type serviceType)
        {
            return _container.ResolveNamed(serviceName, serviceType);
        }
        /// <summary>
        /// 從(cong)插件(jian)容器里(li)返回對象
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="serviceName"></param>
        /// <returns></returns>
        public static TService Resolve<TService>(string serviceName)
        {
            return _container.ResolveNamed<TService>(serviceName);
        }

    }