001/* 002 * Copyright 2002-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.validation.beanvalidation; 018 019import javax.validation.MessageInterpolator; 020import javax.validation.TraversableResolver; 021import javax.validation.Validation; 022import javax.validation.Validator; 023import javax.validation.ValidatorContext; 024import javax.validation.ValidatorFactory; 025 026import org.springframework.beans.factory.InitializingBean; 027 028/** 029 * Configurable bean class that exposes a specific JSR-303 Validator 030 * through its original interface as well as through the Spring 031 * {@link org.springframework.validation.Validator} interface. 032 * 033 * @author Juergen Hoeller 034 * @since 3.0 035 */ 036public class CustomValidatorBean extends SpringValidatorAdapter implements Validator, InitializingBean { 037 038 private ValidatorFactory validatorFactory; 039 040 private MessageInterpolator messageInterpolator; 041 042 private TraversableResolver traversableResolver; 043 044 045 /** 046 * Set the ValidatorFactory to obtain the target Validator from. 047 * <p>Default is {@link javax.validation.Validation#buildDefaultValidatorFactory()}. 048 */ 049 public void setValidatorFactory(ValidatorFactory validatorFactory) { 050 this.validatorFactory = validatorFactory; 051 } 052 053 /** 054 * Specify a custom MessageInterpolator to use for this Validator. 055 */ 056 public void setMessageInterpolator(MessageInterpolator messageInterpolator) { 057 this.messageInterpolator = messageInterpolator; 058 } 059 060 /** 061 * Specify a custom TraversableResolver to use for this Validator. 062 */ 063 public void setTraversableResolver(TraversableResolver traversableResolver) { 064 this.traversableResolver = traversableResolver; 065 } 066 067 068 @Override 069 public void afterPropertiesSet() { 070 if (this.validatorFactory == null) { 071 this.validatorFactory = Validation.buildDefaultValidatorFactory(); 072 } 073 074 ValidatorContext validatorContext = this.validatorFactory.usingContext(); 075 MessageInterpolator targetInterpolator = this.messageInterpolator; 076 if (targetInterpolator == null) { 077 targetInterpolator = this.validatorFactory.getMessageInterpolator(); 078 } 079 validatorContext.messageInterpolator(new LocaleContextMessageInterpolator(targetInterpolator)); 080 if (this.traversableResolver != null) { 081 validatorContext.traversableResolver(this.traversableResolver); 082 } 083 084 setTargetValidator(validatorContext.getValidator()); 085 } 086 087}