/// <summary>
        ///
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="requestParams"></param>
        /// <param name="request"></param>
        /// <returns></returns>
        private AopDictionary SerializeBizModel <T>(AopDictionary requestParams, IAopRequest <T> request) where T : AopResponse
        {
            AopDictionary result            = requestParams;
            Boolean       isBizContentEmpty = !requestParams.ContainsKey(BIZ_CONTENT) || String.IsNullOrEmpty(requestParams[BIZ_CONTENT]);

            if (isBizContentEmpty && request.GetBizModel() != null)
            {
                AopObject bizModel = request.GetBizModel();
                String    content  = Serialize(bizModel);
                result.Add(BIZ_CONTENT, content);
            }
            return(result);
        }