JW/EMIS.Utility/AutofacHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using Autofac;
using Autofac.Integration.Mvc;

namespace EMIS.Utility
{
    public interface IAutofacContainerProvider
    {
        IContainer Container { get; set; }
    }

    public class AutofacHelper
    {
        private static IContainer _Container;
        public static IContainer Container
        {
            get
            {
                if (_Container == null)
                {
                    if (CreateContainerFun != null)
                    {
                        _Container = CreateContainerFun();
                    }
                    else
                    {
                        _Container = (HttpContext.Current.ApplicationInstance as IAutofacContainerProvider).Container;
                    }

                }
                return _Container;

            }
            set
            {
                _Container = value;
            }
        }
        public static Func<IContainer> CreateContainerFun { get; set; }

        public static ILifetimeScope RequestLifetimeScope
        {
            get
            {
                return
                    Container.BeginLifetimeScope(System.Web.HttpContext.Current != null
                        ? System.Web.HttpContext.Current.Timestamp
                        : DateTime.Now);
            }
        }
    }
}