using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Xml.Serialization;
using System.Data;
using System.Reflection;
using System.Collections;

namespace Ant.Service.Common
{
    /// <summary>
    /// 序列化反序列化对象帮助类
    /// add 作者： 季健国 QQ:181589805 by 2016-03-09
    /// </summary>
    public class SerializationHelper
    {
        public SerializationHelper() { }

        /// <summary>
        /// 反序列化
        /// </summary>
        /// <param name="type">对象类型</param>
        /// <param name="filename">文件路径</param>
        /// <returns></returns>
        public static object Load(Type type, string filename)
        {
            FileStream fs = null;
            try
            {
                // open the stream...
                fs = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
                XmlSerializer serializer = new XmlSerializer(type);
                return serializer.Deserialize(fs);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (fs != null)
                    fs.Close();
            }
        }

        /// <summary>
        /// 序列化
        /// </summary>
        /// <param name="obj">对象</param>
        /// <param name="filename">文件路径</param>
        public static void Save(object obj, string filename)
        {
            FileStream fs = null;
            // serialize it...
            try
            {
                fs = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.ReadWrite);
                XmlSerializer serializer = new XmlSerializer(obj.GetType());
                serializer.Serialize(fs, obj);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (fs != null)
                    fs.Close();
            }
        }

        /// <summary>
        /// 序列化XML字符串
        /// </summary>
        /// <param name="obj">对象</param>
        public static string Save(object obj)
        {
            MemoryStream ms = new MemoryStream();
            System.Xml.XmlTextWriter xtw = new System.Xml.XmlTextWriter(ms, Encoding.Default);
            // serialize it...
            try
            {
                XmlSerializer serializer = new XmlSerializer(obj.GetType());
                serializer.Serialize(xtw, obj);
                return Encoding.Default.GetString(ms.ToArray());
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                xtw.Close();
                ms.Dispose();
            }
        }

        /// <summary>
        /// 反序列化XML字符串
        /// </summary>
        /// <param name="type">类型</param>
        /// <param name="xml">XML字符串</param>
        /// <returns></returns>
        public static object Get(Type type, string xml)
        {
            MemoryStream ms = null;
            StreamReader sr = null;
            try
            {
                XmlSerializer serializer = new XmlSerializer(type);
                ms = new MemoryStream(Encoding.Default.GetBytes(xml));
                using (sr = new StreamReader(ms, Encoding.Default))
                {
                    return serializer.Deserialize(sr);
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                sr.Dispose();
                sr.Close();
                ms.Dispose();
            }
        }

    }
}