//send nomal coap request
private Request PerformCoAP(Request.Method method, Uri uri, Boolean messageVisible, Boolean observe)
{
if (null != _currentRequest)
{
_currentRequest.Cancel();
}
Request request = Request.Create(method);
_currentRequest = request;
request.URI = uri;
if (method == Request.Method.POST || method == Request.Method.PUT)
{
request.SetPayload(this.Payload, MediaType.TextPlain);
}
if (messageVisible)
{
request.Responding += new EventHandler <ResponseEventArgs>(request_Responding);
request.Responded += new EventHandler <ResponseEventArgs>(request_Responded);
}
request.ResponseQueueEnabled = true;
request.Execute();
return(request);
}
//send observe request
private void PerformObserve(Request.Method method, Uri uri)
{
if (null != _currentRequest)
{
_currentRequest.Cancel();
}
Request request = Request.Create(method);
_currentRequest = request;
request.URI = uri;
request.AddOption(Option.Create(OptionType.Observe, 60));
request.Token = TokenManager.Instance.AcquireToken(false);
request.Responded += new EventHandler <ResponseEventArgs>(observe_Responded);
_observingRequest = request;
//try Websocket connect
try
{
//wait for websocket connect
Thread.Sleep(5000);
observedSession = coapWebSocektService.SessionList[coapWebSocektService.SessionList.Count - 1];
request.ResponseQueueEnabled = true;
request.Execute();
}
catch
{
_observingRequest.RemoveOptions(OptionType.Observe);
_observingRequest.Execute();
_observingRequest = null;
Console.WriteLine("Bad websocket connect");
this.clientSocket.Send(Encoding.UTF8.GetBytes("Bad websocket connect"));
this.clientSocket.Disconnect(false);
this.clientSocket.Dispose();
}
}