}
    }

    private <T> void validateNonNull(String element, T value, Runnable validator) {
        if (value == null) {
            logError(element, "is missing");
        } else {
            validator.run();
        }
    }

    private void validateString(String element, String value) {
        validateNonNull(element, value, () -> validateNonEmpty(element, value, String::isBlank));
    }