Map generateErrorHandlerMapFromApi()

in src/main/java/feign/error/AnnotationErrorDecoder.java [75:113]
33 lines of code
5 McCabe index (conditional complexity)

    Map<String, MethodErrorHandler> generateErrorHandlerMapFromApi(Class<?> apiType) {

      ExceptionGenerator classLevelDefault = new ExceptionGenerator.Builder()
          .withResponseBodyDecoder(responseBodyDecoder)
          .withExceptionType(ErrorHandling.NO_DEFAULT.class)
          .build();
      Map<Integer, ExceptionGenerator> classLevelStatusCodeDefinitions =
          new HashMap<Integer, ExceptionGenerator>();

      Optional<ErrorHandling> classLevelErrorHandling =
          readErrorHandlingIncludingInherited(apiType);
      if (classLevelErrorHandling.isPresent()) {
        ErrorHandlingDefinition classErrorHandlingDefinition =
            readAnnotation(classLevelErrorHandling.get(), responseBodyDecoder);
        classLevelDefault = classErrorHandlingDefinition.defaultThrow;
        classLevelStatusCodeDefinitions = classErrorHandlingDefinition.statusCodesMap;
      }

      Map<String, MethodErrorHandler> methodErrorHandlerMap =
          new HashMap<String, MethodErrorHandler>();
      for (Method method : apiType.getMethods()) {
        if (method.isAnnotationPresent(ErrorHandling.class)) {
          ErrorHandlingDefinition methodErrorHandling =
              readAnnotation(method.getAnnotation(ErrorHandling.class), responseBodyDecoder);
          ExceptionGenerator methodDefault = methodErrorHandling.defaultThrow;
          if (methodDefault.getExceptionType().equals(ErrorHandling.NO_DEFAULT.class)) {
            methodDefault = classLevelDefault;
          }

          MethodErrorHandler methodErrorHandler =
              new MethodErrorHandler(methodErrorHandling.statusCodesMap,
                  classLevelStatusCodeDefinitions, methodDefault);

          methodErrorHandlerMap.put(configKey(apiType, method), methodErrorHandler);
        }
      }

      return methodErrorHandlerMap;
    }