예제 #1
0
  /**
   * Process incoming CarbonHttpRequest and update CarbonHttpResponse with generated swagger
   * definition in json format
   *
   * @param request CarbonHttpRequest representing the incoming request
   * @param response Updated CarbonHttpResponse with swagger definition
   * @param configurationContext Global configuration context
   * @throws Exception Will be thrown if any exception occurs during update
   */
  public void process(
      CarbonHttpRequest request,
      CarbonHttpResponse response,
      ConfigurationContext configurationContext)
      throws Exception {
    API api = SwaggerUtils.getAPIFromSynapseConfig(request);

    if (api == null) {
      log.error("API not found for the request : " + request.getRequestURI());
      throw new Exception("API not found by SwaggerJsonProcessor");
    } else {
      JSONObject jsonDefinition =
          new JSONObject(new GenericApiObjectDefinition(api).getDefinitionMap());
      String responseString = jsonDefinition.toString(SwaggerConstants.DEFAULT_INDENT_FACTOR);
      SwaggerUtils.updateResponse(response, responseString, SwaggerConstants.CONTENT_TYPE_JSON);
    }
  }
  private void processWithGetProcessor(
      HttpRequest request,
      HttpResponse response,
      String requestUri,
      String requestUrl,
      String queryString,
      String item,
      OutputStream outputStream,
      NHttpServerConnection conn)
      throws Exception {
    OverflowBlob temporaryData = new OverflowBlob(256, 4048, "_nhttp", ".dat");
    try {
      CarbonHttpRequest carbonHttpRequest = new CarbonHttpRequest("GET", requestUri, requestUrl);

      String uri = request.getRequestLine().getUri();
      // setting the parameters for nhttp transport
      int pos = uri.indexOf("?");
      if (pos != -1) {
        StringTokenizer st = new StringTokenizer(uri.substring(pos + 1), "&");
        while (st.hasMoreTokens()) {
          String param = st.nextToken();
          pos = param.indexOf("=");
          if (pos != -1) {
            carbonHttpRequest.setParameter(param.substring(0, pos), param.substring(pos + 1));
          } else {
            carbonHttpRequest.setParameter(param, null);
          }
        }
      }

      carbonHttpRequest.setContextPath(cfgCtx.getServiceContextPath());
      carbonHttpRequest.setQueryString(queryString);

      CarbonHttpResponse carbonHttpResponse =
          new CarbonHttpResponse(temporaryData.getOutputStream());

      (getRequestProcessors.get(item)).process(carbonHttpRequest, carbonHttpResponse, cfgCtx);

      // adding headers
      Map<String, String> responseHeaderMap = carbonHttpResponse.getHeaders();
      for (Object key : responseHeaderMap.keySet()) {
        Object value = responseHeaderMap.get(key);
        response.addHeader(key.toString(), value.toString());
      }

      // setting status code
      response.setStatusCode(carbonHttpResponse.getStatusCode());

      // setting error codes
      if (carbonHttpResponse.isError()) {
        if (carbonHttpResponse.getStatusMessage() != null) {
          response.setStatusLine(
              response.getProtocolVersion(),
              carbonHttpResponse.getStatusCode(),
              carbonHttpResponse.getStatusMessage());
        } else {
          response.setStatusLine(response.getProtocolVersion(), carbonHttpResponse.getStatusCode());
        }
      }

      if (carbonHttpResponse.isRedirect()) {
        response.addHeader("Location", carbonHttpResponse.getRedirect());
        response.setStatusLine(response.getProtocolVersion(), 302);
      }

      serverHandler.commitResponseHideExceptions(conn, response);
      temporaryData.writeTo(outputStream);

      try {
        outputStream.flush();
        outputStream.close();
      } catch (Exception ignored) {
      }
    } finally {
      temporaryData.release();
    }
  }