docs: @Override
      public synchronized void init(ProcessingEnvironment processingEnv) {
          super.init(processingEnv);
  
          if (generateDoc) {
              try {
                  docWriter = mFiler.createResource(
                          StandardLocation.SOURCE_OUTPUT,
                          PACKAGE_OF_GENERATE_DOCS,
                          "arouter-map-of-" + moduleName + ".json"
                  ).openWriter();
              } catch (IOException e) {
                  logger.error("Create doc writer failed, because " + e.getMessage());
              }
          }
  
          iProvider = elementUtils.getTypeElement(Consts.IPROVIDER).asType();
  
          logger.info(">>> RouteProcessor init. <<<");
      }