package com.gxx.record.utils;

import java.util.Set;

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;

import org.hibernate.validator.HibernateValidator;

/**
 * 校验工具类
 * @author Gxx
 */
public class ValidationUtils {
    /**
     * 使用hibernate的注解来进行验证
     */
    private static Validator validator = Validation.byProvider(HibernateValidator.class)
    		.configure().failFast(true).buildValidatorFactory().getValidator();

    /**
     * 校验
     * @param obj
     */
    public static <T> void validate(T obj) {
        Set<ConstraintViolation<T>> constraintViolations = validator.validate(obj);
        /**
         * 抛出检验异常
         */
        if (constraintViolations.size() > 0) {
            throw new RuntimeException(String.format("参数校验失败:%s", constraintViolations.iterator().next().getMessage()));
        }
    }
}