using System;
using System.Text;
using System.Runtime.Serialization.Json;
namespace ZLPlugin_LisPacs_MR.Domain.Units
{
    /// <summary>
    /// 自定义Json辅助类
    /// </summary>
    class JSON
    {
        /// <summary>
        /// 实体类转换为JSON串
        /// </summary>
        /// <typeparam name="T">实体类类型</typeparam>
        /// <param name="jsonObject">实体类实例</param>
        /// <param name="encoding">编码</param>
        /// <returns></returns>
        public static string ObjectToJson<T>(Object jsonObject, Encoding encoding)
        {
            string result = String.Empty;
            DataContractJsonSerializer serializer = new DataContractJsonSerializer(jsonObject.GetType());
            using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
            {
                serializer.WriteObject(ms, jsonObject);
                result = encoding.GetString(ms.ToArray());
            }
            return result;
        }

        /// <summary>
        /// JSON串转换为实体类
        /// </summary>
        /// <typeparam name="T">实体类类型</typeparam>
        /// <param name="json">JSON串</param>
        /// <param name="encoding">编码</param>
        /// <returns></returns>
        public static T JsonToObject<T>(string json, Encoding encoding)
        {
            T resultObject = Activator.CreateInstance<T>();
            DataContractJsonSerializer serializer = new DataContractJsonSerializer(resultObject.GetType());
            using (System.IO.MemoryStream ms = new System.IO.MemoryStream(encoding.GetBytes(json)))
            {
                resultObject = (T)serializer.ReadObject(ms);
            }
            return resultObject;
        }
    }
}