package com.kidgrow.common.utils;
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import com.kidgrow.common.annotation.DateValidator;
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import javax.validation.ConstraintValidator;
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import javax.validation.ConstraintValidatorContext;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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/**
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* 石家庄喜高科技有限责任公司 版权所有 © Copyright 2020<br>
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*
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* @Description: <br>
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* @Project: <br>
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* @CreateDate: Created in 2020/4/3 11:41 <br>
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* @Author: <a href="4345453@kidgrow.com">liuke</a>
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*/
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public class KidgrowDateValidator implements ConstraintValidator<DateValidator, Date> {
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private DateValidator dateValidator;
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@Override
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public void initialize(DateValidator constraintAnnotation) {
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this.dateValidator = constraintAnnotation;
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}
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@Override
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public boolean isValid(Date value, ConstraintValidatorContext context) {
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String pattern = dateValidator.pattern();
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SimpleDateFormat df = new SimpleDateFormat(pattern);
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String myMinDate = dateValidator.minDate();
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String myMaxDate = dateValidator.maxDate();
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// 为空可以放过
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if (value == null){
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return true;
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}
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try {
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Date maxDate = null;
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Date minDate = null;
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if ("".equals(myMinDate)){
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// 未设置最小时间
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maxDate = df.parse(dateValidator.maxDate());
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// compareTo方法, 1：后者大于前者;-1:后者小于前者;0:两个相同
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return value.compareTo(maxDate) != 1;
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} else if ("".equals(myMaxDate)){
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// 未设置最大时间
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minDate = df.parse(dateValidator.minDate());
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return value.compareTo(minDate) >= 0;
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} else {
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// 设置了最大时间和最小时间
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maxDate = df.parse(dateValidator.maxDate());
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minDate = df.parse(dateValidator.minDate());
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return value.compareTo(maxDate) != 1 && value.compareTo(minDate) >= 0;
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}
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return false;
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}
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}
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