cn.net.wanmo.common.util.BeanValidatorUtil Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of common Show documentation
The newest version!
package cn.net.wanmo.common.util;

import com.google.common.collect.Lists;
import com.google.common.collect.Maps;

import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.Validator;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * JSR303 Validator(Hibernate Validator)工具类.
 * 
 * ConstraintViolation中包含propertyPath, message 和invalidValue等信息.
 * 提供了各种convert方法，适合不同的i18n需求: 1. List, String内容为message 2.
 * List, String内容为propertyPath + separator + message 3.
 * Map
 * 
 * 详情见wiki: https://github.com/springside/springside4/wiki/HibernateValidator
 */
public class BeanValidatorUtil {

    /**
     * 调用JSR303的validate方法, 验证失败时抛出ConstraintViolationException.
     */
    @SuppressWarnings({ "unchecked", "rawtypes" })
    public static void validateWithException(Validator validator, Object object, Class... groups)
            throws ConstraintViolationException {
        Set constraintViolations = validator.validate(object, groups);
        if (!constraintViolations.isEmpty()) {
            throw new ConstraintViolationException(constraintViolations);
        }
    }

    /**
     * 辅助方法,
     * 转换ConstraintViolationException中的Set中为List.
     */
    public static List extractMessage(ConstraintViolationException e) {
        return extractMessage(e.getConstraintViolations());
    }

    /**
     * 辅助方法, 转换Set为List
     */
    @SuppressWarnings("rawtypes")
    public static List extractMessage(Set constraintViolations) {
        List errorMessages = Lists.newArrayList();
        for (ConstraintViolation violation : constraintViolations) {
            errorMessages.add(violation.getMessage());
        }
        return errorMessages;
    }

    /**
     * 辅助方法, 转换ConstraintViolationException中的Set为Map.
     */
    public static Map extractPropertyAndMessage(ConstraintViolationException e) {
        return extractPropertyAndMessage(e.getConstraintViolations());
    }

    /**
     * 辅助方法, 转换Set为Map.
     */
    @SuppressWarnings("rawtypes")
    public static Map extractPropertyAndMessage(
            Set constraintViolations) {
        Map errorMessages = Maps.newHashMap();
        for (ConstraintViolation violation : constraintViolations) {
            errorMessages.put(violation.getPropertyPath().toString(), violation.getMessage());
        }
        return errorMessages;
    }

    /**
     * 辅助方法,
     * 转换ConstraintViolationException中的Set为List.
     */
    public static List extractPropertyAndMessageAsList(ConstraintViolationException e) {
        return extractPropertyAndMessageAsList(e.getConstraintViolations(), " ");
    }

    /**
     * 辅助方法, 转换Set为List.
     */
    @SuppressWarnings("rawtypes")
    public static List extractPropertyAndMessageAsList(
            Set constraintViolations) {
        return extractPropertyAndMessageAsList(constraintViolations, " ");
    }

    /**
     * 辅助方法,
     * 转换ConstraintViolationException中的Set为List.
     */
    public static List extractPropertyAndMessageAsList(ConstraintViolationException e, String separator) {
        return extractPropertyAndMessageAsList(e.getConstraintViolations(), separator);
    }

    /**
     * 辅助方法, 转换Set为List.
     */
    @SuppressWarnings("rawtypes")
    public static List extractPropertyAndMessageAsList(Set constraintViolations,
            String separator) {
        List errorMessages = Lists.newArrayList();
        for (ConstraintViolation violation : constraintViolations) {
            errorMessages.add(violation.getPropertyPath() + separator + violation.getMessage());
        }
        return errorMessages;
    }
}