Examples of ch.ethz.inf.vs.californium.coap.Request

ch.ethz.inf.vs.californium.coap.Request

le.com:5683/sensors/temperature"); request.send(); Response response = request.waitForResponse(); The client can also send requests asynchronously and define a handler that is invoked when a response arrives. This is in particular useful, when a client wants to observe the target resource and react to notifications. For instance:

 Request request = new Request(Code.GET); request.setURI("coap://example.com:5683/sensors/temperature"); request.setObserve(); request.addMessageObserver(new MessageObserverAdapter() { public void responded(Response response) { if (response.getCode() == ResponseCode.CONTENT) { System.out.println("Received " + response.getPayloadString()); } else { // error handling } } }); request.send();

We can also modify the options of a request. For example:

 Request post = new Request(Code.POST); post.setPayload("Plain text"); post.getOptions() .setContentFormat(MediaTypeRegistry.TEXT_PLAIN) .setAccept(MediaTypeRegistry.TEXT_PLAIN) .setIfNoneMatch(true); String response = post.send().waitForResponse().getPayloadString();

@see Response

      System.err.println("URI not specified");
      System.exit(ERR_MISSING_URI);
    }
    
    // create request according to specified method
    Request request = newRequest(method);


    // set request URI
    if (method.equals("DISCOVER") && (uri.getPath() == null || uri.getPath().isEmpty() || uri.getPath().equals("/"))) {
      // add discovery resource path to URI
      try {
        uri = new URI(uri.getScheme(), uri.getAuthority(), DISCOVERY_RESOURCE, uri.getQuery());
        
      } catch (URISyntaxException e) {
        System.err.println("Failed to parse URI: " + e.getMessage());
        System.exit(ERR_BAD_URI);
      }
    }
    
    request.setURI(uri);
    request.setPayload(payload);
    request.getOptions().setContentFormat(MediaTypeRegistry.TEXT_PLAIN);
    
    if (request.getScheme().equals(CoAP.COAP_SECURE_URI_SCHEME)) {
      dtlsEndpoint = new CoAPEndpoint(new DTLSConnector(new InetSocketAddress(0)), NetworkConfig.getStandard());
      dtlsEndpoint.setMessageDeliverer(new ClientMessageDeliverer());
      dtlsEndpoint.start();
      EndpointManager.getEndpointManager().setDefaultSecureEndpoint(dtlsEndpoint);
    }
    
    // execute request
    try {
      request.send();


      // loop for receiving multiple responses
      do {
  
        // receive response
        Response response = null;
        try {
          response = request.waitForResponse();
        } catch (InterruptedException e) {
          System.err.println("Failed to receive response: " + e.getMessage());
          System.exit(ERR_RESPONSE_FAILED);
        }

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    } else if (method.equals("DELETE")) {
      return Request.newDelete();
    } else if (method.equals("DISCOVER")) {
      return Request.newGet();
    } else if (method.equals("OBSERVE")) {
      Request request = Request.newGet();
      request.setObserve();
      loop = true;
      return request;
    } else {
      System.err.println("Unknown method: " + method);
      System.exit(ERR_UNKNOWN_METHOD);

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    // TODO check with draft authors if update should be atomic
    if (newContext.equals("")) {
      context = "coap://" + request.getSource()+":"+request.getSourcePort();
    } else {
      Request checkRequest = Request.newGet();


      try { 
        checkRequest.setURI(context);
      } catch (Exception e) {
        LOGGER.warning(e.toString());
        return false;
      }
    }

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    @Override
    public void run() {


      LOGGER.info("Validating endpoint: "+getContext());
      
      Request validationRequest = Request.newGet();
      validationRequest.setURI(getContext()+"/.well-known/core");
      if (etag!=null) {
        validationRequest.getOptions().addETag(etag);
      }
      Response response = null;
      
      try {
        validationRequest.send();
        response = validationRequest.waitForResponse();
        
      } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }

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  public CO08(String serverURI) {
    super(CO08.class.getSimpleName());


    // create the request
    Request request = new Request(Code.GET, Type.CON);
    // request.setToken(TokenManager.getInstance().acquireToken(false));
    request.setObserve();
    // set the parameters and execute the request
    executeRequest(request, serverURI, RESOURCE_URI);


  }

View Full Code Here

      }


      // Delete the /obs resource of the server (either locally or by
      // having another CoAP client perform a DELETE request)
      System.out.println("+++++ Sending PUT +++++");
      Request asyncRequest = new Request(Code.PUT, Type.CON);
      asyncRequest.setURI(uri);
      asyncRequest.getOptions().setContentFormat((int) Math.random() * 0xFFFF + 1);
      asyncRequest.setPayload("Random");
      asyncRequest.addMessageObserver(new MessageObserverAdapter() {
        public void onResponse(Response response) {
          if (response != null) {
            checkInt(EXPECTED_RESPONSE_CODE_1.value,
                response.getCode().value, "code");
          }
        }
      });
      // enable response queue for synchronous I/O
      asyncRequest.send();


      long time = response.getOptions().getMaxAge() * 1000;


      response = request.waitForResponse(time + 1000);
      System.out.println("received " + response);

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  public CC06(String serverURI) {
    super(CC06.class.getSimpleName());


    // create the request
    Request request = Request.newDelete();
    request.setConfirmable(false);
    // set the parameters and execute the request
    executeRequest(request, serverURI, RESOURCE_URI);
  }

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  public CC02(String serverURI) {
    super(CC02.class.getSimpleName());


    // create the request
    Request request = Request.newDelete();
    // set the parameters and execute the request
    executeRequest(request, serverURI, RESOURCE_URI);
  }

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  public CL08(String serverURI) {
    super(CL08.class.getSimpleName());


    // create the request
    Request request = new Request(Code.GET, Type.CON);
    // set query
    request.getOptions().addURIQuery(EXPECTED_HREF);
    // set the parameters and execute the request
    executeRequest(request, serverURI, RESOURCE_URI);
  }

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  public CL05(String serverURI) {
    super(CL05.class.getSimpleName());


    // create the request
    Request request = new Request(Code.GET, Type.CON);
    // set query
    request.getOptions().addURIQuery(EXPECTED_IF);
    // set the parameters and execute the request
    executeRequest(request, serverURI, RESOURCE_URI);
  }

View Full Code Here

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ch.ethz.inf.vs.californium.benchmark.BenchmarkServer

ch.ethz.inf.vs.californium.CoapClient

ch.ethz.inf.vs.californium.CoapObserveRelation

ch.ethz.inf.vs.californium.examples.ExampleClient

ch.ethz.inf.vs.californium.examples.ExampleServer

ch.ethz.inf.vs.californium.examples.GETClient

ch.ethz.inf.vs.californium.examples.GUIClient

ch.ethz.inf.vs.californium.examples.resources.MirrorResource

ch.ethz.inf.vs.californium.network.CoAPEndpoint$RawDataChannelImpl

ch.ethz.inf.vs.californium.network.Matcher

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