com.github.fashionbrot.internal.DefaultConstraint 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.Default;
import com.github.fashionbrot.common.util.ObjectUtil;
import com.github.fashionbrot.constraint.ConstraintValidator;
import com.github.fashionbrot.util.ClassUtil;


import java.math.BigDecimal;
import java.math.BigInteger;

public class DefaultConstraint implements ConstraintValidator {

    @Override
    public boolean isValid(Default annotation, Object var1, Class valueType) {
        return true;
    }


    @Override
    public Object modify(Default annotation, Object value, Class valueType) {
        if (ObjectUtil.isEmpty(annotation.value())) {
            return value;
        }

        if (ClassUtil.isBigDecimal(valueType)) {
            BigDecimal val = (BigDecimal) value;
            if (val == null) {
                return new BigDecimal(annotation.value());
            }
        } else if (ClassUtil.isBigInteger(valueType)) {
            BigInteger var = (BigInteger) value;
            if (var == null) {
                return new BigInteger(annotation.value());
            }
        } else if (ClassUtil.isShort(valueType)) {
            Short var = (Short) value;
            if (var == null) {
                return ObjectUtil.parseShort(annotation.value());
            }
        } else if (ClassUtil.isLong(valueType)) {
            Long var = (Long) value;
            if (var == null) {
                return ObjectUtil.parseLong(annotation.value());
            }
        } else if (ClassUtil.isInt(valueType)) {
            Integer var = (Integer) value;
            if (var == null) {
                return ObjectUtil.parseInteger(annotation.value());
            }
        } else if (ClassUtil.isFloat(valueType)) {
            Float var = (Float) value;
            if (var == null) {
                return ObjectUtil.parseFloat(annotation.value());
            }
        } else if (ClassUtil.isDouble(valueType)) {
            Double var = (Double) value;
            if (var == null) {
                return ObjectUtil.parseDouble(annotation.value());
            }
        } else if (ClassUtil.isString(valueType)) {
            String str = (String) value;
            if (ObjectUtil.isEmpty(str)) {
                return annotation.value();
            }
        }

        return value;
    }

}