/**
* Copyright (c) 2005-2012 springside.org.cn
*/
package org.springboot.sample.util;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.Validator;
/**
* 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>, String内容为message
* 2. List<String>, String内容为propertyPath + separator + message
* 3. Map<propertyPath, message>
*
* 详情见wiki: https://github.com/springside/springside4/wiki/HibernateValidator
*/
public class BeanValidatorUtils {
/**
* 调用JSR303的validate方法, 验证失败时抛出ConstraintViolationException.
*
* 参数 Validator 可以直接注入,如:
*
* @Autowired
* protected Validator validator;
*
*/
public static void validateWithException(Validator validator, Object object, Class<?>... groups)
throws ConstraintViolationException {
Set<? extends ConstraintViolation<?>> constraintViolations = validator.validate(object, groups);
if (!constraintViolations.isEmpty()) {
throw new ConstraintViolationException(constraintViolations);
// 调用处捕获异常后,获取错误信息的方法
// List<String> list = BeanValidatorUtils.extractPropertyAndMessageAsList(ex, ": ");
}
}
/**
* 辅助方法, 转换ConstraintViolationException中的Set<ConstraintViolations>中为List<message>.
*/
public static List<String> extractMessage(ConstraintViolationException e) {
return extractMessage(e.getConstraintViolations());
}
/**
* 辅助方法, 转换Set<ConstraintViolation>为List<message>
*/
@SuppressWarnings("rawtypes")
public static List<String> extractMessage(Set<? extends ConstraintViolation> constraintViolations) {
List<String> errorMessages = new ArrayList<String>();
for (ConstraintViolation violation : constraintViolations) {
errorMessages.add(violation.getMessage());
}
return errorMessages;
}
/**
* 辅助方法, 转换ConstraintViolationException中的Set<ConstraintViolations>为Map<property, message>.
*/
public static Map<String, String> extractPropertyAndMessage(ConstraintViolationException e) {
return extractPropertyAndMessage(e.getConstraintViolations());
}
/**
* 辅助方法, 转换Set<ConstraintViolation>为Map<property, message>.
*/
@SuppressWarnings("rawtypes")
public static Map<String, String> extractPropertyAndMessage(Set<? extends ConstraintViolation> constraintViolations) {
Map<String, String> errorMessages = new HashMap<String, String>();
for (ConstraintViolation violation : constraintViolations) {
errorMessages.put(violation.getPropertyPath().toString(), violation.getMessage());
}
return errorMessages;
}
/**
* 辅助方法, 转换ConstraintViolationException中的Set<ConstraintViolations>为List<propertyPath message>.
*/
public static List<String> extractPropertyAndMessageAsList(ConstraintViolationException e) {
return extractPropertyAndMessageAsList(e.getConstraintViolations(), " ");
}
/**
* 辅助方法, 转换Set<ConstraintViolations>为List<propertyPath message>.
*/
@SuppressWarnings("rawtypes")
public static List<String> extractPropertyAndMessageAsList(Set<? extends ConstraintViolation> constraintViolations) {
return extractPropertyAndMessageAsList(constraintViolations, " ");
}
/**
* 辅助方法, 转换ConstraintViolationException中的Set<ConstraintViolations>为List<propertyPath +separator+ message>.
*/
public static List<String> extractPropertyAndMessageAsList(ConstraintViolationException e, String separator) {
return extractPropertyAndMessageAsList(e.getConstraintViolations(), separator);
}
/**
* 辅助方法, 转换Set<ConstraintViolation>为List<propertyPath +separator+ message>.
*/
@SuppressWarnings("rawtypes")
public static List<String> extractPropertyAndMessageAsList(Set<? extends ConstraintViolation> constraintViolations,
String separator) {
List<String> errorMessages = new ArrayList<String>();
for (ConstraintViolation violation : constraintViolations) {
errorMessages.add(violation.getPropertyPath() + separator + violation.getMessage());
}
return errorMessages;
}
}