com.github.fashionbrot.internal.DigitsConstraint Maven / Gradle / Ivy

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validation 参数验证 https://github.com/fashionbrot/validation

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package com.github.fashionbrot.internal;


import com.github.fashionbrot.annotation.Digits;
import com.github.fashionbrot.common.util.ObjectUtil;
import com.github.fashionbrot.constraint.ConstraintValidator;
import com.github.fashionbrot.util.ClassUtil;

import java.util.regex.Pattern;


public class DigitsConstraint implements ConstraintValidator {


    @Override
    public boolean isValid(Digits annotation, Object value, Class valueType) {
        if (value == null) {
            return annotation.skipEmpty();
        }

        if (ClassUtil.isString(valueType)) {
            String strValue = (String) value;
            if (ObjectUtil.isEmpty(strValue)) {
                return annotation.skipEmpty();
            }

            return strValue.matches("-?\\d+(\\.\\d+)?");
        }
        return true;
    }


}