Controller Advice - Exception Handlers

Controller Advice - Exception Handlers

// from:
// https://niels.nu/blog/2016/controller-advice-exception-handlers.html

@ControllerAdvice
@Slf4j
public class ExceptionHandlers {
    @ExceptionHandler(UserNotFoundException.class)
    @ResponseStatus(HttpStatus.NOT_FOUND)
    @ResponseBody
    public ErrorResponse handleUserNotFoundException(final UserNotFoundException ex) {
        log.error("User not found thrown", ex);
        return new ErrorResponse("USER_NOT_FOUND", "The user was not found");
    }

    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    @ExceptionHandler(Throwable.class)
    @ResponseBody
    public ErrorResponse handleThrowable(final Throwable ex) {
      log.error("Unexpected error", ex);
      return new ErrorResponse("INTERNAL_SERVER_ERROR", "An unexpected internal server error occured");
    }

    @Data
    public static class ErrorResponse {
        private final String code;
        private final String message;
    }
}