/// <summary>
/// Notify listeners of the new temperature
/// </summary>
/// <param name="temp">The temperature</param>
static private void NotifyListeners(int temp)
{
ArrayList resObservers = coapServer.ObserversList.GetResourceObservers(OBSERVED_RESOURCE_URI);
if (resObservers == null || resObservers.Count == 0)
{
return;
}
//The next observe sequence number
UInt16 obsSeq = (UInt16)Convert.ToInt16(DateTime.Today.ToString("mmss"));//Will get accomodated in 24-bits limit and will give good sequence
foreach (CoAPRequest obsReq in resObservers)
{
UInt16 mId = coapServer.GetNextMessageID();
CoAPRequest notifyReq = new CoAPRequest(CoAPMessageType.CON, CoAPMessageCode.PUT, mId);
notifyReq.RemoteSender = obsReq.RemoteSender;
notifyReq.Token = obsReq.Token;
//Add observe option with sequence number
notifyReq.AddOption(CoAPHeaderOption.OBSERVE, AbstractByteUtils.GetBytes(obsSeq));
//The payload will be JSON
Hashtable ht = new Hashtable();
ht.Add("temp", temp);
string jsonStr = JSONResult.ToJSON(ht);
notifyReq.AddPayload(jsonStr);
//Tell recipient about the content-type of the response
notifyReq.AddOption(CoAPHeaderOption.CONTENT_FORMAT, AbstractByteUtils.GetBytes(CoAPContentFormatOption.APPLICATION_JSON));
//send it
coapServer.Send(notifyReq);
}
}
