ParameterValidationGenerator.java 文件源码

protected void addValidation(final INamedParam parameter,
        final JVar argumentVariable) {
    if (isNotBlank(parameter.getPattern())) {
        JAnnotationUse patternAnnotation = argumentVariable.annotate(Pattern.class);
        patternAnnotation.param("regexp", parameter.getPattern());
    }

    final Integer minLength = parameter.getMinLength();
    final Integer maxLength = parameter.getMaxLength();
    if ((minLength != null) || (maxLength != null)) {
        final JAnnotationUse sizeAnnotation = argumentVariable
                .annotate(Size.class);

        if (minLength != null) {
            sizeAnnotation.param("min", minLength);
        }

        if (maxLength != null) {
            sizeAnnotation.param("max", maxLength);
        }
    }

    final BigDecimal minimum = parameter.getMinimum();
    if (minimum != null) {
        addMinMaxConstraint(parameter, "minimum", Min.class, minimum,
                argumentVariable);
    }

    final BigDecimal maximum = parameter.getMaximum();
    if (maximum != null) {
        addMinMaxConstraint(parameter, "maximum", Max.class, maximum,
                argumentVariable);
    }

    if (parameter.isRequired()) {
        argumentVariable.annotate(NotNull.class);
    }
}