znyc.recruitment.admin.api/Znyc.Recruitment.Admin.WeChat.Core/CommonService/MessageHandlers/CustomMessageHandler/CustomMessageContext.cs

using Senparc.NeuChar;
using Senparc.NeuChar.Context;
using Senparc.NeuChar.Entities;
using System;
using System.Xml.Linq;

namespace Znyc.Recruitment.Admin.WeChat.CommonService.CustomMessageHandler
{
    public class CustomMessageContext : MessageContext<IRequestMessageBase, IResponseMessageBase>
    {
        public CustomMessageContext()
        {
            base.MessageContextRemoved += CustomMessageContext_MessageContextRemoved;
        }

        public override IRequestMessageBase GetRequestEntityMappingResult(RequestMsgType requestMsgType,
            XDocument doc = null)
        {
            throw new NotImplementedException();
        }

        public override IResponseMessageBase GetResponseEntityMappingResult(ResponseMsgType responseMsgType,
            XDocument doc = null)
        {
            throw new NotImplementedException();
        }

        /// <summary>
        ///     当上下文过期，被移除时触发的时间
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void CustomMessageContext_MessageContextRemoved(object sender,
            WeixinContextRemovedEventArgs<IRequestMessageBase, IResponseMessageBase> e)
        {
            /* 注意，这个事件不是实时触发的（当然你也可以专门写一个线程监控）
             * 为了提高效率，根据WeixinContext中的算法，这里的过期消息会在过期后下一条请求执行之前被清除
             */

            CustomMessageContext messageContext = e.MessageContext as CustomMessageContext;
            if (messageContext == null)
            {
                return; //如果是正常的调用，messageContext不会为null
            }

            //TODO:这里根据需要执行消息过期时候的逻辑，下面的代码仅供参考

            //Log.InfoFormat("{0}的消息上下文已过期",e.OpenId);
            //api.SendMessage(e.OpenId, "由于长时间未搭理客服，您的客服状态已退出！");
        }
    }
}