Package ch.ethz.inf.vs.californium.network.serialization

Examples of ch.ethz.inf.vs.californium.network.serialization.DataParser


     * The endpoint's executor executes this method to convert the raw bytes
     * into a message, look for an associated exchange and forward it to
     * the stack of layers.
     */
    private void receiveMessage(RawData raw) {
      DataParser parser = new DataParser(raw.getBytes());
     
      if (parser.isRequest()) {
        // This is a request
        Request request;
        try {
          request = parser.parseRequest();
        } catch (IllegalStateException e) {
          String log = "message format error caused by " + raw.getInetSocketAddress();
          if (!parser.isReply()) {
            // manually build RST from raw information
            EmptyMessage rst = new EmptyMessage(Type.RST);
            rst.setDestination(raw.getAddress());
            rst.setDestinationPort(raw.getPort());
            rst.setMID(parser.getMID());
            for (MessageInterceptor interceptor:interceptors)
              interceptor.sendEmptyMessage(rst);
            connector.send(serializer.serialize(rst));
            log += " and reseted";
          }
          LOGGER.info(log);
          return;
        }
        request.setSource(raw.getAddress());
        request.setSourcePort(raw.getPort());

        /*
         * Logging here causes significant performance loss.
         * If necessary, add an interceptor that logs the messages,
         * e.g., the MessageTracer.
         */
       
        for (MessageInterceptor interceptor:interceptors)
          interceptor.receiveRequest(request);

        // MessageInterceptor might have canceled
        if (!request.isCanceled()) {
          Exchange exchange = matcher.receiveRequest(request);
          if (exchange != null) {
            exchange.setEndpoint(CoAPEndpoint.this);
            coapstack.receiveRequest(exchange, request);
          }
        }
       
      } else if (parser.isResponse()) {
        // This is a response
        Response response = parser.parseResponse();
        response.setSource(raw.getAddress());
        response.setSourcePort(raw.getPort());

        /*
         * Logging here causes significant performance loss.
         * If necessary, add an interceptor that logs the messages,
         * e.g., the MessageTracer.
         */
       
        for (MessageInterceptor interceptor:interceptors)
          interceptor.receiveResponse(response);

        // MessageInterceptor might have canceled
        if (!response.isCanceled()) {
          Exchange exchange = matcher.receiveResponse(response);
          if (exchange != null) {
            exchange.setEndpoint(CoAPEndpoint.this);
            response.setRTT(System.currentTimeMillis() - exchange.getTimestamp());
            coapstack.receiveResponse(exchange, response);
          }
        }
       
      } else if (parser.isEmpty()) {
        // This is an empty message
        EmptyMessage message = parser.parseEmptyMessage();
        message.setSource(raw.getAddress());
        message.setSourcePort(raw.getPort());
       
        /*
         * Logging here causes significant performance loss.
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