public new void Send()
{
string serverIP = __IpAddress;//coapsharp.Properties.Settings.Default.IpAddress;// "10.90.202.182";//"localhost";
if (HdkUtils.IsIPv4Address(serverIP))
{
CoAPSettings.Instance.AddressFamily = System.Net.Sockets.AddressFamily.InterNetwork;
}
else
{
CoAPSettings.Instance.AddressFamily = System.Net.Sockets.AddressFamily.InterNetworkV6;
}
__coapClient.Initialize(serverIP, __ServerPort);
__coapClient.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
__coapClient.CoAPError += new CoAPErrorHandler(OnCoAPError);
coapReq = new CoAPRequest(this.ConfirmableMessageType, //CoAPMessageType.NON,
CoAPMessageCode.GET,
100); //hardcoded message ID as we are using only once
string uriToCall = "coap://" + serverIP + ":" + __ServerPort + __URI;
coapReq.SetURL(uriToCall);
__Token = DateTime.Now.ToString("HHmmss"); //Token value must be less than 8 bytes
coapReq.Token = new CoAPToken(__Token); //A random token
__coapClient.Send(coapReq);
__Done.WaitOne();
__Done.Reset();
__Done.Close();
__Done = null;
__coapClient.Shutdown();
__coapClient = null;
}
public override void Send()
{
string serverIP = __IpAddress;
__coapClient = new CoAPClientChannel();
__coapClient.Initialize(serverIP, __ServerPort);
__coapClient.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
__coapClient.CoAPRequestReceived += new CoAPRequestReceivedHandler(OnCoAPRequestReceived);
__coapClient.CoAPError += new CoAPErrorHandler(OnCoAPError);
//Send a NON request to get the temperature...in return we will get a NON request from the server
coapReq = new CoAPRequest(CoAPMessageType.RST,
CoAPMessageCode.GET,
HdkUtils.MessageId()); //hardcoded message ID as we are using only once
string uriToCall = "coap://" + serverIP + ":" + __ServerPort + __URI;
coapReq.SetURL(uriToCall);
__Token = DateTime.Now.ToString("HHmmss"); //Token value must be less than 8 bytes
coapReq.Token = new CoAPToken(__Token); //A random token
__coapClient.Send(coapReq);
__Done.WaitOne();
__Done.Reset();
__Done.Close();
__Done = null;
__coapClient.Shutdown();
__coapClient = null;
}
/// <summary>
/// Get the request message that was pending response
/// </summary>
/// <param name="msgId">The message Id corresponding to the message that needs to be extracted</param>
/// <returns>A copy of the request object pending response (if found), else null</returns>
public CoAPRequest GetRequestPendingResponse(UInt16 msgId)
{
this._waitEvent.WaitOne();//Wait for thread to release the queue
CoAPRequest foundReq = null;
try
{
int count = 0;
for (count = 0; count < this._conMessageQ.Count; count++)
{
AbstractCoAPMessage coapMsgInQ = (AbstractCoAPMessage)this._conMessageQ[count];
if (coapMsgInQ.ID.Value == msgId)
{
/*Found*/
foundReq = new CoAPRequest(coapMsgInQ.MessageType.Value, coapMsgInQ.Code.Value, coapMsgInQ.ID.Value);
foreach (CoAPHeaderOption option in coapMsgInQ.Options)
foundReq.AddOption(option.Number, option.Value);
foundReq.Token = coapMsgInQ.Token;
foundReq.Payload = coapMsgInQ.Payload;
foundReq.RemoteSender = coapMsgInQ.RemoteSender;
break;
}
}
}
catch (Exception e)
{
AbstractLogUtil.GetLogger().LogError(e.ToString());
; ;//TOCHECK::nothing for now
}
finally
{
this._waitEvent.Set();//Now allow others to work on the queue
}
return foundReq;
}
private void AcknowledgeResponse(CoAPResponse coapResp)
{
string serverIP = __IpAddress;
// Response handlers already set - leave them alone
coapReq = new CoAPRequest(CoAPMessageType.ACK,
CoAPMessageCode.GET,
HdkUtils.MessageId());
string uriToCall = "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + __ServerPort + __URI;
coapReq.SetURL(uriToCall);
__Token = DateTime.Now.ToString("HHmmss");//Token value must be less than 8 bytes
coapReq.Token = coapResp.Token;
string blat = coapReq.ToString();
// JJK - Changes in v2.0.7
//coapReq.Options.AddOption(CoAPHeaderOption.PROXY_SCHEME, "coap");
// make Proxy packet
coapReq.Options.AddOption(CoAPHeaderOption.BLOCK2, new byte[] { CoAPBlockOption.BLOCK_SIZE_128 });
coapReq.Options.AddOption(CoAPHeaderOption.PROXY_URI, "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + "4849" + __URI);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_HOST);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_QUERY);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PATH);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PORT);
coapReq.Options.RemoveOption(CoAPHeaderOption.CONTENT_FORMAT);
// JJK - end of Changes in v2.0.7
FileLogger.Write("About to send CoAP ACK request");
FileLogger.Write(coapReq.ToString());
CoApGatewaySessionManager.Instance.Client.Send(coapReq);
}
/// <summary>
/// Entry point
/// </summary>
public static void Main()
{
NetworkHelpers.SetupAndConnectNetwork();
string serverIP = "localhost";
int serverPort = 5683;
coapClient = new CoAPClientChannel();
coapClient.Initialize(serverIP, serverPort);
coapClient.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
coapClient.CoAPRequestReceived += new CoAPRequestReceivedHandler(OnCoAPRequestReceived);
coapClient.CoAPError += new CoAPErrorHandler(OnCoAPError);
//Send a NON request to get the temperature...in return we will get a NON request from the server
CoAPRequest coapReq = new CoAPRequest(CoAPMessageType.NON,
CoAPMessageCode.GET,
100);//hardcoded message ID as we are using only once
string uriToCall = "coap://" + serverIP + ":" + serverPort + "/sensors/temp";
coapReq.SetURL(uriToCall);
_mToken = DateTime.Today.ToString("HHmmss"); //Token value must be less than 8 bytes
coapReq.Token = new CoAPToken(_mToken); //A random token
coapClient.Send(coapReq);
Thread.Sleep(Timeout.Infinite); //blocks
while (true)
{
Thread.Sleep(3000);
}
}
/// <summary>
/// This method composes a UDP call to the simulator to acquire the device list.
/// </summary>
private void RequestDeviceList()
{
string serverIP = __IpAddress;
__coapClient.Initialize(serverIP, __ServerPort);
__coapClient.AckTimeout = __Timeout;
__coapClient.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
__coapClient.CoAPRequestReceived += new CoAPRequestReceivedHandler(OnCoAPRequestReceived);
__coapClient.CoAPError += new CoAPErrorHandler(OnCoAPError);
//Send a NON request to get the temperature...in return we will get a NON request from the server
coapReq = new CoAPRequest(this.ConfirmableMessageType, //CoAPMessageType.NON
CoAPMessageCode.GET,
HdkUtils.MessageId()); //hardcoded message ID as we are using only once
string uriToCall = "coap://" + serverIP + ":" + __ServerPort + "/devices"; //"/sensors/temp";"/time";//
coapReq.SetURL(uriToCall);
__Token = DateTime.Now.ToString("HHmmss"); //Token value must be less than 8 bytes
coapReq.Token = new CoAPToken(__Token); //A random token
__coapClient.Send(coapReq);
__Done.WaitOne(GatewaySettings.Instance.RequestTimeout);
__Done.Reset();
__Done.Close();
__Done = null;
__coapClient.Shutdown();
__coapClient = null;
}
public override void Send()
{
// If we can't establish a socket with a good login to the gateway api, then just return;
bool gotSession = false;
try
{
gotSession = CoApGatewaySessionManager.Instance.EstablishSession();
}
catch (Exception noSession)
{
FileLogger.Write("Error obtaining session");
FileLogger.Write(noSession.Message);
FileLogger.Write(noSession.StackTrace);
this.ErrorResult = "Error obtaining session" + noSession.Message;
}
if (!gotSession)
{
FileLogger.Write("Session NOT Established");
return;
}
string serverIP = __IpAddress;
// Set the response handlers.
CoApGatewaySessionManager.Instance.Client.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
CoApGatewaySessionManager.Instance.Client.CoAPError += new CoAPErrorHandler(OnCoAPError);
coapReq = new CoAPRequest(this.ConfirmableMessageType,
CoAPMessageCode.GET,
HdkUtils.MessageId());
string uriToCall = "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + __ServerPort + __URI;
coapReq.SetURL(uriToCall);
SetToken();
// Send out the request.
// JJK - Changes in v2.0.7
//coapReq.Options.AddOption(CoAPHeaderOption.PROXY_SCHEME, "coap");
// make Proxy packet header
coapReq.Options.AddOption(CoAPHeaderOption.BLOCK2, new byte[] { CoAPBlockOption.BLOCK_SIZE_128 });
coapReq.Options.AddOption(CoAPHeaderOption.PROXY_URI, "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + "4849" + __URI);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_HOST);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_QUERY);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PATH);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PORT);
coapReq.Options.RemoveOption(CoAPHeaderOption.CONTENT_FORMAT);
// JJK - end of Changes in v2.0.7
FileLogger.Write("About to send CoAP request");
FileLogger.Write(coapReq.ToString());
coapReq.Timeout = GatewaySettings.Instance.RequestTimeout;//////////////////////////////////////
CoApGatewaySessionManager.Instance.Client.Send(coapReq);
__Done.WaitOne(GatewaySettings.Instance.RequestTimeout);
__Done.Reset();
CoApGatewaySessionManager.Instance.Client.CoAPResponseReceived -= new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
CoApGatewaySessionManager.Instance.Client.CoAPError -= new CoAPErrorHandler(OnCoAPError);
}
/// <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);
}
}
/// <summary>
/// Send the CoAP request to the server
/// </summary>
public override void Send()
{
string device = __IpAddress;
string serverIP = "localhost";
__coapClient.Initialize(serverIP, __ServerPort);
__coapClient.Initialize(serverIP, __ServerPort);
__coapClient.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
__coapClient.CoAPError += new CoAPErrorHandler(OnCoAPError);
coapReq = new CoAPRequest(this.ConfirmableMessageType,//CoAPMessageType.NON,
CoAPMessageCode.GET,
HdkUtils.MessageId());
string uriToCall = "coap://" + serverIP + ":" + __ServerPort + "/" + __IpAddress + __URI;
coapReq.SetURL(uriToCall);
SetToken();
// Send out the request.
coapReq.Options.AddOption(CoAPHeaderOption.PROXY_SCHEME, "coap");
FileLogger.Write("About to send CoAP request");
FileLogger.Write(coapReq.ToString());
__coapClient.Send(coapReq);
__Done.WaitOne(GatewaySettings.Instance.RequestTimeout);
__Done.Reset();
CoApGatewaySessionManager.Instance.Client.CoAPResponseReceived -= new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
CoApGatewaySessionManager.Instance.Client.CoAPError -= new CoAPErrorHandler(OnCoAPError);
}
/// <summary>
/// Remove an observer for the given observable resource
/// </summary>
/// <param name="observableResourceURL">The observable URL for which the observer has to be removed</param>
/// <param name="tokenValue">The Token value the observer</param>
public void RemoveResourceObserver(string observableResourceURL, byte[] tokenValue)
{
if (!this.IsResourceBeingObserved(observableResourceURL))
{
return;
}
this._observableListSync.WaitOne();
bool observerExists = false;
ArrayList observers = (ArrayList)this._observers[observableResourceURL];
int count = 0;
for (count = 0; count < observers.Count; count++)
{
CoAPRequest storedObserver = (CoAPRequest)observers[count];
if (AbstractByteUtils.AreByteArraysEqual(storedObserver.Token.Value, tokenValue))
{
observerExists = true;
break;
}
}
if (observerExists && count < observers.Count)
{
observers.RemoveAt(count);
}
this._observableListSync.Set();
}
/// <summary>
/// Add an observer for the given observable resource
/// </summary>
/// <param name="coapReq">A request message from client that is requesting resource observation</param>
public void AddResourceObserver(CoAPRequest coapReq)
{
if (coapReq == null)
{
throw new ArgumentNullException("CoAP message requesting for observation is NULL");
}
if (!coapReq.IsObservable())
{
throw new ArgumentException("CoAP message requesting for observation is not marked as observable");
}
string observableURL = coapReq.GetURL().Trim().ToLower();
//First, add this URL as an observable resource
this.AddObservableResource(observableURL);
//Now, add this observer for the given observable resource
this._observableListSync.WaitOne();
bool observerAlreadyExists = false;
ArrayList observers = (ArrayList)this._observers[observableURL];
for (int count = 0; count < observers.Count; count++)
{
CoAPRequest storedObserver = (CoAPRequest)observers[count];
if (storedObserver.ID.Value == coapReq.ID.Value)
{
observerAlreadyExists = true;
break;
}
}
if (!observerAlreadyExists)
{
observers.Add(coapReq);
}
this._observableListSync.Set();
}
/// <summary>
/// Send CoAP request to the server
/// </summary>
public override void Send()
{
string device = __IpAddress;
string serverIP = "localhost";
__coapClient.Initialize(serverIP, __ServerPort);
__coapClient.AckTimeout = __Timeout;
__coapClient.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
__coapClient.CoAPRequestReceived += new CoAPRequestReceivedHandler(OnCoAPRequestReceived);
__coapClient.CoAPError += new CoAPErrorHandler(OnCoAPError);
//Send a NON request to get the temperature...in return we will get a NON request from the server
coapReq = new CoAPRequest(this.ConfirmableMessageType, //CoAPMessageType.NON
CoAPMessageCode.GET,
HdkUtils.MessageId()); //hardcoded message ID as we are using only once
string uriToCall = "coap://" + serverIP + ":" + __ServerPort + "/" + __IpAddress + "/.well-known/core"; //"/sensors/temp";"/time";//
coapReq.SetURL(uriToCall);
SetToken();
__coapClient.Send(coapReq);
__Done.WaitOne(GatewaySettings.Instance.RequestTimeout);
__Done.Reset();
__Done.Close();
__Done = null;
__coapClient.Shutdown();
__coapClient = null;
}
/// <summary>
/// Handle error
/// </summary>
/// <param name="e">The exception that occurred</param>
/// <param name="associatedMsg">The associated message (if any)</param>
private static void OnCoAPError(Exception e, AbstractCoAPMessage associatedMsg)
{
if (e.GetType() == typeof(UndeliveredException))
{
//Some CON message never got delivered...
CoAPRequest undeliveredCONReq = (CoAPRequest)associatedMsg;
//Now take action on this underlivered request
}
}
public override void Send()
{
// If we can't establish a socket with a good login to the gateway api, then just return;
if (!CoApGatewaySessionManager.Instance.EstablishSession())
{
return;
}
string serverIP = __IpAddress;
// Set the response handlers.
CoApGatewaySessionManager.Instance.Client.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
CoApGatewaySessionManager.Instance.Client.CoAPError += new CoAPErrorHandler(OnCoAPError);
__URI = "/";
coapReq = new CoAPRequest(CoAPMessageType.CON,
CoAPMessageCode.GET,
HdkUtils.MessageId());
string uriToCall = "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + __ServerPort + __URI;
coapReq.SetURL(uriToCall);
SetToken();
// Send out the request.
// JJK - Changes in v2.0.7
//coapReq.Options.AddOption(CoAPHeaderOption.PROXY_SCHEME, "coap");
// make Proxy packet
coapReq.Options.AddOption(CoAPHeaderOption.BLOCK2, new byte[] { CoAPBlockOption.BLOCK_SIZE_128 });
coapReq.Options.AddOption(CoAPHeaderOption.PROXY_URI, "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + "4849" + __URI);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_HOST);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_QUERY);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PATH);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PORT);
coapReq.Options.RemoveOption(CoAPHeaderOption.CONTENT_FORMAT);
// JJK - end of Changes in v2.0.7
//////coapReq = new CoAPRequest(CoAPMessageType.CON,
////// CoAPMessageCode.EMPTY,
////// HdkUtils.MessageId());
//////string uriToCall = "coap://" + HdkUtils.UriFromMac(__IpAddress);// + ":" + __ServerPort + __URI;
//////coapReq.SetURL(uriToCall);
////////SetToken();
//////// Send out the request.
////////coapReq.Options.AddOption(CoAPHeaderOption.PROXY_SCHEME, "coap");
FileLogger.Write("About to send CoAP request");
FileLogger.Write(coapReq.ToString());
CoApGatewaySessionManager.Instance.Client.Send(coapReq);
__Done.WaitOne(GatewaySettings.Instance.RequestTimeout);
__Done.Reset();
CoApGatewaySessionManager.Instance.Client.CoAPResponseReceived -= new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
CoApGatewaySessionManager.Instance.Client.CoAPError -= new CoAPErrorHandler(OnCoAPError);
}
/// <summary>
/// Get the next request from the Q that was pending a separate response.
/// If nothing is pending then NULL value is returned
/// </summary>
/// <returns>CoAPRequest</returns>
public virtual CoAPRequest GetNextRequestPendingSeparateResponse()
{
if (this._separateResponseQ == null)
{
throw new InvalidOperationException("Please initialize the server first");
}
CoAPRequest coapReq = (CoAPRequest)this._separateResponseQ.GetNextPendingRequest();
return(coapReq);
}
/// <summary>
/// Add this request to the pending separate response queue.
/// The message can be extracted later and acted upon
/// </summary>
/// <param name="coapReq">CoAPRequest</param>
public virtual void Add(CoAPRequest coapReq)
{
if (coapReq == null)
{
throw new ArgumentNullException("CoAPRequest to add to this queue cannot be NULL");
}
this._separateRespQSync.WaitOne();
this._separateResponseQ.Enqueue(coapReq);
this._separateRespQSync.Set();
}
/// <summary>
/// Perform a session request (acquire or terminate).
/// </summary>
/// <param name="messageCode">CoAPMessageCode.POST for establishing a session or oAPMessageCode.DELETE for terminating a session</param>
/// <returns>a boolean indicating success or failure of the request</returns>
private bool SessionCall(byte messageCode)
{
__TimedOut = true;
__SessionRequestSucceeded = false;
string token = GatewaySettings.Instance.SfdpToken;
//api.coap-test.developer.ssni.com
string serverIP = AbstractNetworkUtils.GetIPAddressFromHostname(GatewaySettings.Instance.GatewayURI).ToString();
__coapClient.Initialize(GatewaySettings.Instance.GatewayURI, __ServerPort);
__coapClient.AckTimeout = __Timeout;
__coapClient.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPSessionResponseReceived);
__coapClient.CoAPError += new CoAPErrorHandler(OnCoAPError);
coapReq = new CoAPRequest(this.ConfirmableMessageType,
messageCode,
HdkUtils.MessageId());
string uriToCall = "coap://" + GatewaySettings.Instance.GatewayURI + ":"
+ __ServerPort + "/sessions?security=none";//?token="
//+ GatewaySettings.Instance.SfdpToken;
//+ "&security=none";
coapReq.SetURL(uriToCall);
byte[] zero = { 0x00 };
coapReq.AddOption(CoAPHeaderOption.CONTENT_FORMAT, zero);
if (messageCode != CoAPMessageCode.DELETE)
{
coapReq.Payload = new CoAPPayload(GatewaySettings.Instance.SfdpToken);
}
SetToken();
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_QUERY); // JJK - Change in v2.0.7
FileLogger.Write("About to send session request");
try
{
FileLogger.Write(coapReq.ToString());
}
catch (Exception flErr)
{
FileLogger.Write(flErr.Message);
}
__coapClient.Send(coapReq);
__Done.WaitOne(GatewaySettings.Instance.RequestTimeout);
__Done.Reset();
if (__TimedOut)
{
this.ErrorResult = "Request timed out";
FileLogger.Write(this.ErrorResult);
}
__coapClient.CoAPResponseReceived -= new CoAPResponseReceivedHandler(OnCoAPSessionResponseReceived);
return(__SessionRequestSucceeded);
}
/// <summary>
/// Add this request to the pending separate response queue.
/// The message can be extracted later and acted upon
/// </summary>
/// <param name="coapReq">CoAPRequest</param>
public virtual void AddToPendingSeparateResponse(CoAPRequest coapReq)
{
if (this._separateResponseQ == null)
{
throw new InvalidOperationException("Please initialize the server first");
}
if (coapReq == null)
{
throw new ArgumentNullException("CoAPRequest to add to this queue cannot be NULL");
}
this._separateResponseQ.Add(coapReq);
}
/// <summary>
/// Get the next request from the Q that was pending a separate response.
/// If nothing is pending then NULL value is returned
/// </summary>
/// <returns>CoAPRequest</returns>
public virtual CoAPRequest GetNextPendingRequest()
{
CoAPRequest coapReq = null;
this._separateRespQSync.WaitOne();
if (this._separateResponseQ.Count > 0 && this._separateResponseQ.Peek() != null)
{
coapReq = (CoAPRequest)this._separateResponseQ.Dequeue();
}
this._separateRespQSync.Set();
return(coapReq);
}
public void StartObserving()
{
string serverIP = __IpAddress;
// Set the response handlers.
CoApGatewaySessionManager.Instance.Client.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPObserveResponseReceived);
CoApGatewaySessionManager.Instance.Client.CoAPError += new CoAPErrorHandler(OnCoAPError);
coapReq = new CoAPRequest(this.ConfirmableMessageType,
CoAPMessageCode.GET,
HdkUtils.MessageId());
string uriToCall = "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + __ServerPort + __URI;
coapReq.SetURL(uriToCall);
SetToken();
string blat = coapReq.ToString();
byte[] observerOption = new byte[1];
observerOption[0] = 0; // Start observing
coapReq.Options.AddOption(CoAPHeaderOption.OBSERVE, new byte[0]);
//coapReq.Options.AddOption(CoAPHeaderOption.OBSERVE, observerOption);
// JJK - Changes in v2.0.7
//coapReq.Options.AddOption(CoAPHeaderOption.PROXY_SCHEME, "coap");
// make Proxy packet
coapReq.Options.AddOption(CoAPHeaderOption.BLOCK2, new byte[] { CoAPBlockOption.BLOCK_SIZE_128 });
coapReq.Options.AddOption(CoAPHeaderOption.PROXY_URI, "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + "4849" + __URI);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_HOST);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_QUERY);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PATH);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PORT);
coapReq.Options.RemoveOption(CoAPHeaderOption.CONTENT_FORMAT);
// JJK - end of Changes in v2.0.7
FileLogger.Write("About to send CoAP request");
FileLogger.Write(coapReq.ToString());
CoApGatewaySessionManager.Instance.Client.Send(coapReq);
__Observing = true;
while (__Observing)
{
//FileLogger.Write(CoApGatewaySessionManager.Instance.Client.ToString());
Application.DoEvents();
Thread.Sleep(100);
//__Done.WaitOne(GatewaySettings.Instance.RequestTimeout);
}
__Done.Reset();
}
public bool GetRequest()
{
CoAPRequest coapReq = new CoAPRequest(CoAPMessageType.CON,
CoAPMessageCode.GET,
id);
id++;
string uriToCall = "coap://" + serverIP + ":" + serverPort + "/.well-known/core";
coapReq.SetURL(uriToCall);
_mToken = DateTime.Now.ToString("HHmmss"); //Token value must be less than 8 bytes
coapReq.Token = new CoAPToken(_mToken); //A random token
_coapClient.Send(coapReq);
tempAsJSON = "";
timeOut = false;
Timer timer = new Timer(delay);
timer.Elapsed += Timer_Elapsed;
timer.Start();
while (tempAsJSON == string.Empty && timeOut == false)
{
;
}
timer.Stop();
if (timeOut == true && tempAsJSON == string.Empty)
{
return(false);
}
Services.Clear();
ObserveServices.Clear();
InteractServices.Clear();
ParseServices(tempAsJSON);
string s = tempAsJSON;
tempAsJSON = "";
return(true);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public new byte[] ToBytes()
{
string serverIP = __IpAddress; //coapsharp.Properties.Settings.Default.IpAddress;// "10.90.202.182";//"localhost";
coapReq = new CoAPRequest(this.ConfirmableMessageType, //CoAPMessageType.NON,
CoAPMessageCode.GET,
HdkUtils.MessageId()); //hardcoded message ID as we are using only once
string uriToCall = "coap://" + serverIP + ":" + __ServerPort + __URI;
coapReq.SetURL(uriToCall);
__Token = DateTime.Now.ToString("HHmmss"); //Token value must be less than 8 bytes
coapReq.Token = new CoAPToken(__Token); //A random token
byte[] b = __coapClient.ToBytes(coapReq);
return(b);
}
/// <summary>
/// Send the request to get the temperature
/// </summary>
private static void SendRequest()
{
string urlToCall = "coap://localhost:5683/sensors/temp";
UInt16 mId = coapClient.GetNextMessageID();//Using this method to get the next message id takes care of pending CON requests
CoAPRequest tempReq = new CoAPRequest(CoAPMessageType.CON, CoAPMessageCode.GET, mId);
tempReq.SetURL(urlToCall);
/*Uncomment the two lines below to use non-default values for timeout and retransmission count*/
/*Dafault value for timeout is 2 secs and retransmission count is 4*/
//tempReq.Timeout = 10;
//tempReq.RetransmissionCount = 5;
coapClient.Send(tempReq);
}
/// <summary>
/// Raised when a CoAP request is received
/// </summary>
/// <param name="coapReq">CoAPRequest</param>
protected void HandleRequestReceived(CoAPRequest coapReq)
{
CoAPRequestReceivedHandler reqRxHandler = CoAPRequestReceived;
try
{
if (reqRxHandler != null)
{
reqRxHandler(coapReq);
}
}
catch (Exception e)
{
AbstractLogUtil.GetLogger().LogError(e.ToString());
//Do nothing else...do not want to bring down the whole thing because handler failed
}
}
/// <summary>
/// Send the request to get the temperature
/// </summary>
public static void SendRequest()
{
string urlToCall = "coap://localhost:5683/sensors/temp/observe";
UInt16 mId = coapClient.GetNextMessageID();//Using this method to get the next message id takes care of pending CON requests
CoAPRequest tempReq = new CoAPRequest(CoAPMessageType.CON, CoAPMessageCode.GET, mId);
tempReq.SetURL(urlToCall);
//Important::Add the Observe option
tempReq.AddOption(CoAPHeaderOption.OBSERVE, null); //Value of observe option has no meaning in request
tempReq.AddTokenValue(DateTime.Today.ToString("HHmmss")); //must be <= 8 bytes
/*Uncomment the two lines below to use non-default values for timeout and retransmission count*/
/*Dafault value for timeout is 2 secs and retransmission count is 4*/
//tempReq.Timeout = 10;
//tempReq.RetransmissionCount = 5;
coapClient.Send(tempReq);
}
/// <summary>
/// Send the CoAP message to client
/// </summary>
/// <param name="coapMsg">The CoAP message to send</param>
/// <returns>Number of bytes sent</returns>
public override int Send(AbstractCoAPMessage coapMsg)
{
if (coapMsg == null)
{
throw new ArgumentNullException("Message is NULL");
}
if (this._socket == null)
{
throw new InvalidOperationException("CoAP server not yet started");
}
int bytesSent = 0;
try
{
//We do not want server to die when a socket send error occurs...
//just clean all settings specific to the remote client and
//keep going
byte[] coapBytes = coapMsg.ToByteStream();
bytesSent = this._socket.SendTo(coapBytes, coapMsg.RemoteSender);
if (coapMsg.MessageType.Value == CoAPMessageType.CON)
{
//confirmable message...need to wait for a response
coapMsg.DispatchDateTime = DateTime.Now;
this._msgPendingAckQ.AddToWaitQ(coapMsg);
}
}
catch (Exception e)
{
this._msgPendingAckQ.RemoveFromWaitQ(coapMsg.ID.Value);
if (coapMsg.GetType() == typeof(CoAPRequest))
{
CoAPRequest coapReq = (CoAPRequest)coapMsg;
this._observers.RemoveResourceObserver(coapReq.GetURL(), coapReq.Token.Value);
}
else if (coapMsg.GetType() == typeof(CoAPResponse))
{
CoAPResponse coapResp = (CoAPResponse)coapMsg;
this._observers.RemoveResourceObserver(coapResp);
}
this.HandleError(e, coapMsg);
}
return(bytesSent);
}
public void SendMessage(string message, string location)
{
CoAPRequest coapReq = new CoAPRequest(CoAPMessageType.CON,
CoAPMessageCode.PUT,
id); //hardcoded message ID as we are using only once
id++;
string uriToCall = $"coap://{serverIP}:{serverPort}{location}";
coapReq.SetURL(uriToCall);
_mToken = DateTime.Now.ToString("HHmmss"); //Token value must be less than 8 bytes
coapReq.Token = new CoAPToken(_mToken); //A random token
coapReq.Payload = new CoAPPayload(message);
_coapClient.Send(coapReq);
}
public string GetDeviceStatus(string location)
{
CoAPRequest coapReq = new CoAPRequest(CoAPMessageType.CON,
CoAPMessageCode.GET,
id);
id++;
string uriToCall = $"coap://{serverIP}:{serverPort}{location}";
coapReq.SetURL(uriToCall);
_mToken = DateTime.Now.ToString("HHmmss"); //Token value must be less than 8 bytes
coapReq.Token = new CoAPToken(_mToken); //A random token
_coapClient.Send(coapReq);
tempAsJSON = "";
timeOut = false;
Timer timer = new Timer(delay);
timer.Elapsed += Timer_Elapsed;
timer.Start();
while (tempAsJSON == string.Empty && timeOut == false)
{
;
}
timer.Stop();
if (timeOut == true && tempAsJSON == string.Empty)
{
return("not found");
}
string s = tempAsJSON;
tempAsJSON = "";
return(s);
}
/// <summary>
/// Send the PUT request
/// </summary>
public override void Send()
{
string serverIP = __IpAddress;
// Set up the handlers
CoApGatewaySessionManager.Instance.Client.CoAPResponseReceived += new CoAPResponseReceivedHandler(OnCoAPResponseReceived);
CoApGatewaySessionManager.Instance.Client.CoAPError += new CoAPErrorHandler(OnCoAPError);
coapReq = new CoAPRequest(this.ConfirmableMessageType,
CoAPMessageCode.PUT,
HdkUtils.MessageId());
string uriToCall = "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + __ServerPort + __URI;
coapReq.SetURL(uriToCall);
SetToken();
byte[] octet = new byte[1];
// As of this moment, the expectation is that the content is an octet stream.
octet[0] = (byte)CoAPContentFormatOption.APPLICATION_OCTET_STREAM;
// JJK - Changes in v2.0.7
//coapReq.Options.AddOption(CoAPHeaderOption.PROXY_SCHEME, "coap");
// make Proxy packet
coapReq.Options.AddOption(CoAPHeaderOption.BLOCK2, new byte[] { CoAPBlockOption.BLOCK_SIZE_128 });
coapReq.Options.AddOption(CoAPHeaderOption.PROXY_URI, "coap://" + HdkUtils.UriFromMac(__IpAddress) + ":" + "4849" + __URI);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_HOST);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_QUERY);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PATH);
coapReq.Options.RemoveOption(CoAPHeaderOption.URI_PORT);
coapReq.Options.RemoveOption(CoAPHeaderOption.CONTENT_FORMAT);
// JJK - end of Changes in v2.0.7
coapReq.Options.AddOption(CoAPHeaderOption.CONTENT_FORMAT, octet);
coapReq.Payload = __Payload;
FileLogger.Write("About to send CoAP request");
FileLogger.Write(coapReq.ToString());
CoApGatewaySessionManager.Instance.Client.Send(coapReq);
__Done.WaitOne(GatewaySettings.Instance.RequestTimeout);
__Done.Reset();
}
/// <summary>
/// Called when a CoAP request is received...we will only support CON requests
/// of type GET... the path is sensors/temp
/// </summary>
/// <param name="coapReq">CoAPRequest object</param>
private static void OnCoAPRequestReceived(CoAPRequest coapReq)
{
string reqPath = (coapReq.GetPath() != null) ? coapReq.GetPath().ToLower() : "";
if (coapReq.MessageType.Value == CoAPMessageType.CON)
{
if (coapReq.Code.Value != CoAPMessageCode.GET)
{
CoAPResponse resp = new CoAPResponse(CoAPMessageType.ACK,
CoAPMessageCode.METHOD_NOT_ALLOWED,
coapReq /*Copy all necessary values from request in the response*/);
//When you use the constructor that accepts a request, then automatically
//the message id , token and remote sender values are copied over to the response
coapServer.Send(resp);
}
else if (reqPath != "sensors/temp")
{
//We do not understand this..
CoAPResponse resp = new CoAPResponse(CoAPMessageType.ACK,
CoAPMessageCode.NOT_FOUND,
coapReq /*Copy all necessary values from request in the response*/);
coapServer.Send(resp);
}
else
{
Debug.WriteLine(coapReq.ToString());
CoAPResponse resp = new CoAPResponse(CoAPMessageType.ACK,
CoAPMessageCode.CONTENT,
coapReq /*Copy all necessary values from request in the response*/);
//The payload will be JSON
Hashtable ht = new Hashtable();
ht.Add("temp", GetRoomTemperature());
string jsonStr = JSONResult.ToJSON(ht);
resp.AddPayload(jsonStr);
//Tell recipient about the content-type of the response
resp.AddOption(CoAPHeaderOption.CONTENT_FORMAT, AbstractByteUtils.GetBytes(CoAPContentFormatOption.APPLICATION_JSON));
//send it
coapServer.Send(resp);
}
}
}
