private void ReadCallBack(IAsyncResult asyncResult)
{
RequestState myRequestState = (RequestState)asyncResult.AsyncState;
Stream responseStream = myRequestState.streamResponse;
try
{
int read = responseStream.EndRead(asyncResult);
// Read the HTML page and then do something with it
if (read > 0)
{
myRequestState.requestData.Append(Encoding.UTF8.GetString(myRequestState.BufferRead, 0, read));
IAsyncResult asynchronousResult = responseStream.BeginRead(myRequestState.BufferRead, 0, BUFFER_SIZE, ReadCallBack, myRequestState);
if (myRequestState.respType == ResponseType.History)
{
history = JsonConvert.DeserializeObject <List <object> >(myRequestState.requestData.ToString());
myRequestState.cb(history);
}
else if (myRequestState.respType == ResponseType.Subscribe)
{
List <object> lstObj = JsonConvert.DeserializeObject <List <object> >(myRequestState.requestData.ToString());
lstObj.Add(myRequestState.channel);
foreach (Channel_status cs in subscriptions)
{
if (cs.channel == myRequestState.channel && !cs.connected && !is_disconnect)
{
callback.disconnectCallback(myRequestState.channel);
is_disconnect = true;
break;
}
}
if (is_disconnect)
{
return;
}
subscribe = lstObj;
callback.responseCallback(myRequestState.channel, subscribe[0]);
}
else
{
myRequestState.cb(JsonConvert.DeserializeObject <List <object> >(myRequestState.requestData.ToString()));
}
}
}
catch (Exception)
{
List <object> error = new List <object>();
if (myRequestState.respType == ResponseType.Time)
{
error.Add("0");
}
else if (myRequestState.respType == ResponseType.History)
{
error.Add("Error: Failed JSONP HTTP Request.");
}
else if (myRequestState.respType == ResponseType.Publish)
{
error.Add("0");
error.Add("Error: Failed JSONP HTTP Request.");
}
else if (myRequestState.respType == ResponseType.Subscribe)
{
error.Add("0");
error.Add("0");
}
myRequestState.cb(error);
}
}
/**
* Request URL
*
* @param List<string> request of url directories.
* @respCallback is a delegate to get async JSON response back
*/
private void _request(List<string> url_components, ResponseCallback respCallback,ResponseType type)
{
try
{
StringBuilder url = new StringBuilder();
// Add Origin To The Request
url.Append(this.ORIGIN);
// Generate URL with UTF-8 Encoding
foreach (string url_bit in url_components)
{
url.Append("/");
url.Append(_encodeURIcomponent(url_bit));
}
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url.ToString());
RequestState myRequestState = new RequestState();
myRequestState.request = request;
myRequestState.cb = respCallback;
myRequestState.respType = type;
if (type == ResponseType.Subscribe)
{
myRequestState.channel = url_components[2];
}
IAsyncResult result = (IAsyncResult)request.BeginGetResponse(requestCallBack, myRequestState);
}
catch (Exception)
{
}
}