/*******************************************************************************
 * Copyright(c) 2014 DongkeSoft All rights reserved. / Confidential
 * 类的信息：
 *      1.程序名称：OperationInvoker.cs
 *      2.功能描述：服务操作者
 * 编辑履历：
 *      作者            日期                版本            修改内容
 *      陈晓野          2014/08/13          1.00            新建
 *******************************************************************************/

using System;
using System.ServiceModel;

using Dongke.IBOSS.PRD.Basics.BaseResources;
using Dongke.IBOSS.PRD.Basics.Library;

namespace Dongke.IBOSS.PRD.WCF.Proxys.ServiceProxy
{
    /// <summary>
    /// 服务操作者
    /// </summary>
    public class OperationInvoker
    {
        /// <summary>
        /// 执行
        /// </summary>
        /// <typeparam name="TChannel"></typeparam>
        /// <param name="serviceInvocation"></param>
        /// <param name="channel"></param>
        public static void Invoke<TChannel>(Action<TChannel> serviceInvocation, TChannel channel)
        {
            ICommunicationObject communicationObject = (ICommunicationObject)channel;
            try
            {
                serviceInvocation(channel);
                communicationObject.Close();
            }
            catch (Exception ex)
            {
                HandleException(ex, communicationObject);
            }
        }

        /// <summary>
        /// 执行
        /// </summary>
        /// <typeparam name="TChannel"></typeparam>
        /// <typeparam name="TResult"></typeparam>
        /// <param name="serviceInvocation"></param>
        /// <param name="channel"></param>
        /// <returns></returns>
        public static TResult Invoke<TChannel, TResult>(Func<TChannel, TResult> serviceInvocation, TChannel channel)
        {
            ICommunicationObject communicationObject = (ICommunicationObject)channel;
            TResult result = default(TResult);
            try
            {
                result = serviceInvocation(channel);
                communicationObject.Close();
            }
            catch (Exception ex)
            {
                HandleException(ex, communicationObject);
            }
            return result;
        }

        /// <summary>
        /// 异常处理
        /// </summary>
        /// <param name="ex"></param>
        /// <param name="channel"></param>
        public static void HandleException(Exception ex, ICommunicationObject channel)
        {
            channel.Abort();
            /*
            // 通信错误 诸如网络错误，地址错误，服务器没有启动等等
            // 状态异常 代理已经关闭，或者通道Fault，等问题
            // 服务异常 服务调用时抛出的异常，这个服务内部异常会序列化传递给客户端，被客户端捕获
            if (ex is CommunicationException)
            {
                // 通信错误，诸如网络错误，地址错误，服务器没有启动，验证没有通过等等
            }
            else if (ex is TimeoutException)
            {
                // 通信错误，超时
            }
            //else if (ex is FaultException<ExceptionDetail>)
            //{
            //    // includeExceptionDetailInFaults="true"
            //    //FaultException<ExceptionDetail> ded = (ex as FaultException<ExceptionDetail>);
            //    // 服务端 应用异常
            //}
            else if (ex is FaultException)
            {
                // 服务端 应用异常
            }
            else if (ex is Exception)
            {
                
            }
            */
            throw ex;
        }
    }
}