package me.zhengjie.utils;

import cn.hutool.core.util.ObjectUtil;
import me.zhengjie.exception.BadRequestException;

/**
 * 验证工具
 * @author Zheng Jie
 * @date 2018-11-23
 */
public class ValidationUtil{

    /**
     * 验证空
     */
    public static void isNull(Object obj, String entity, String parameter , Object value){
        if(ObjectUtil.isNull(obj)){
            String msg = entity + " 不存在: "+ parameter +" is "+ value;
            throw new BadRequestException(msg);
        }
    }

    /**
     * 验证是否为邮箱
     */
    public static boolean isEmail(String string) {
        if (string == null){
            return false;
        }
        String regEx1 = "^([a-z0-9A-Z]+[-|.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";
        return string.matches(regEx1);
    }
}
