public void OnCampaignListener_OnCampaignLoadFail(string param)
        {
            string[] callbackData = Regex.Split(param, DELIMITER);

            if (callbackData.Length == 3)
            {
                string adspaceName  = callbackData[0];
                int    errorCode    = int.Parse(callbackData[1]);
                string errorMessage = callbackData[2];

                if (listener != null)
                {
                    listener.OnCampaignLoadFail(adspaceName, errorCode, errorMessage);
                }
            }
        }