001/* 002 * Copyright 2018-2019 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.batch.item.validator; 018 019import javax.validation.Validator; 020 021import org.springframework.util.Assert; 022import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean; 023import org.springframework.validation.beanvalidation.SpringValidatorAdapter; 024 025/** 026 * A {@link ValidatingItemProcessor} that uses the Bean Validation API (JSR-303) 027 * to validate items. 028 * 029 * @param <T> type of items to validate 030 * @author Mahmoud Ben Hassine 031 * @since 4.1 032 */ 033public class BeanValidatingItemProcessor<T> extends ValidatingItemProcessor<T> { 034 035 private Validator validator; 036 037 /** 038 * Create a new instance of {@link BeanValidatingItemProcessor} with the 039 * default configuration. 040 */ 041 public BeanValidatingItemProcessor() { 042 LocalValidatorFactoryBean localValidatorFactoryBean = new LocalValidatorFactoryBean(); 043 localValidatorFactoryBean.afterPropertiesSet(); 044 this.validator = localValidatorFactoryBean.getValidator(); 045 } 046 047 /** 048 * Create a new instance of {@link BeanValidatingItemProcessor}. 049 * @param localValidatorFactoryBean used to configure the Bean Validation validator 050 */ 051 public BeanValidatingItemProcessor(LocalValidatorFactoryBean localValidatorFactoryBean) { 052 Assert.notNull(localValidatorFactoryBean, "localValidatorFactoryBean must not be null"); 053 this.validator = localValidatorFactoryBean.getValidator(); 054 } 055 056 @Override 057 public void afterPropertiesSet() throws Exception { 058 SpringValidatorAdapter springValidatorAdapter = new SpringValidatorAdapter(this.validator); 059 SpringValidator<T> springValidator = new SpringValidator<>(); 060 springValidator.setValidator(springValidatorAdapter); 061 springValidator.afterPropertiesSet(); 062 setValidator(springValidator); 063 super.afterPropertiesSet(); 064 } 065}