GMS.Framework.Contract/CallContext.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Remoting.Messaging;
using System.Web;
using Newtonsoft.Json;

namespace GMS.Framework.Contract
{
    /// <summary>
    /// 服务调用上下文，主要传输IP，操作人，认证等数据，可用于WCF传输用
    /// </summary>
    [Serializable]
    public class WCFContext:Dictionary<string,object>
    {
        private const string CallContextKey = "__CallContext";    
        internal const string ContextHeaderLocalName = "__CallContext";
        internal const string ContextHeaderNamespace = "urn:gms.com";

        private void EnsureSerializable(object value)
        {
            if (value == null)
            {
                throw new ArgumentNullException("value");
            }
            if (!value.GetType().IsSerializable)
            {
                throw new ArgumentException(string.Format("The argument of the type \"{0}\" is not serializable!", value.GetType().FullName));
            }
        }       

        public new  object this[string key]
        {
            get
            {
                return base[key];
            }
            set
            {
                this.EnsureSerializable(value);
                base[key] = value;
            }
        }

        public Operater Operater
        {
            get
            {
                return JsonConvert.DeserializeObject<Operater>(this["__Operater"].ToString());
            }
            set
            {
                this["__Operater"] = JsonConvert.SerializeObject(value);
            }
        }

        public static WCFContext Current
        {
            get