//private WoopraTracker()
        //{
        //    throw new NotImplementedException("Not supported yet.");
        //}

        public void Track(WoopraVisitor visitor, WoopraEvent woopraEvent)
        {
            HttpRequest(woopraEvent, visitor);
        }
        private void HttpRequest(WoopraEvent woopraEvent, WoopraVisitor visitor)
        {
            try
            {
                var url = new StringBuilder();
                url.Append(((_httpsEnable) ? "https" : "http") + "://www.woopra.com/track/");
                // TODO: Warning!!!, inline IF is not supported ?
                // Identify or Track
                //Identify or Track

                url.Append(woopraEvent == null ? "identify/" : "ce/");

                // Request Options

                url.Append("?host=").Append(HttpUtility.UrlEncode(domain, Encoding.UTF8));
                url.Append("&app=").Append(SDK_ID);
                url.Append("&cookie=").Append(HttpUtility.UrlEncode(visitor.GetCookieValue(), Encoding.UTF8));
                url.Append("&timeout=").Append(_idleTimeout);
                if (!visitor.GetIpAddress().Equals(""))
                {
                    url.Append("&ip=").Append(HttpUtility.UrlEncode(visitor.GetIpAddress(), Encoding.UTF8));
                }


                if (woopraEvent != null && woopraEvent.Timestamp > 0)
                {
                    url.Append("&timestamp=").Append(woopraEvent.Timestamp);
                }

                // visitor Props
                foreach (var item in visitor.properties)
                {
                    url.Append("&cv_")
                    .Append(HttpUtility.UrlEncode(item.Key, Encoding.UTF8))
                    .Append("=")
                    .Append(HttpUtility.UrlEncode(item.Value.ToString(), Encoding.UTF8));
                }


                // event Props
                if (woopraEvent != null)
                {
                    url.Append("&event=").Append(HttpUtility.UrlEncode(woopraEvent.Name, Encoding.UTF8));

                    foreach (var item in woopraEvent.properties)
                    {
                        url.Append("&ce_")
                        .Append(HttpUtility.UrlEncode(item.Key, Encoding.UTF8))
                        .Append("=")
                        .Append(HttpUtility.UrlEncode(item.Value.ToString(), Encoding.UTF8));
                    }
                }


                //Here is a new thread

                using (var client = new WebClient())
                {
                    if ((visitor.GetUserAgent().Equals("") == false))
                    {
                        client.Headers.Add("User-Agent", visitor.GetUserAgent());
                    }
                    if (_httpAuthEnable)
                    {
                        // create credentials, base64 encode of username:password
                        string credentials =
                            Convert.ToBase64String(Encoding.ASCII.GetBytes(_httpAuthUser + ":" + _httpAuthPassword));

                        // Inject this string as the Authorization header
                        client.Headers[HttpRequestHeader.Authorization] = string.Format("Basic {0}", credentials);
                    }
                    client.DownloadStringAsync(new Uri(url.ToString()));

                    //client.OpenRead(url.ToString());
                }
            }

            //catch (JSONException e) {
            //    //  TODO Auto-generated catch block
            //    e.printStackTrace();
            //}
            catch (UriFormatException e)
            {
                //  TODO Auto-generated catch block
                Trace.WriteLine(e.Message);
            }
            catch (IOException e)
            {
                //  TODO Auto-generated catch block
                //e.printStackTrace();
                Trace.WriteLine(e.Message);
            }
            catch (Exception e)
            {
                //  TODO Auto-generated catch block
                //e.printStackTrace();
                Trace.WriteLine(e.Message);
            }
        }