001/*
002 * Copyright 2002-2017 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;
027import org.springframework.lang.Nullable;
028
029/**
030 * Configurable bean class that exposes a specific JSR-303 Validator
031 * through its original interface as well as through the Spring
032 * {@link org.springframework.validation.Validator} interface.
033 *
034 * @author Juergen Hoeller
035 * @since 3.0
036 */
037public class CustomValidatorBean extends SpringValidatorAdapter implements Validator, InitializingBean {
038
039        @Nullable
040        private ValidatorFactory validatorFactory;
041
042        @Nullable
043        private MessageInterpolator messageInterpolator;
044
045        @Nullable
046        private TraversableResolver traversableResolver;
047
048
049        /**
050         * Set the ValidatorFactory to obtain the target Validator from.
051         * <p>Default is {@link javax.validation.Validation#buildDefaultValidatorFactory()}.
052         */
053        public void setValidatorFactory(ValidatorFactory validatorFactory) {
054                this.validatorFactory = validatorFactory;
055        }
056
057        /**
058         * Specify a custom MessageInterpolator to use for this Validator.
059         */
060        public void setMessageInterpolator(MessageInterpolator messageInterpolator) {
061                this.messageInterpolator = messageInterpolator;
062        }
063
064        /**
065         * Specify a custom TraversableResolver to use for this Validator.
066         */
067        public void setTraversableResolver(TraversableResolver traversableResolver) {
068                this.traversableResolver = traversableResolver;
069        }
070
071
072        @Override
073        public void afterPropertiesSet() {
074                if (this.validatorFactory == null) {
075                        this.validatorFactory = Validation.buildDefaultValidatorFactory();
076                }
077
078                ValidatorContext validatorContext = this.validatorFactory.usingContext();
079                MessageInterpolator targetInterpolator = this.messageInterpolator;
080                if (targetInterpolator == null) {
081                        targetInterpolator = this.validatorFactory.getMessageInterpolator();
082                }
083                validatorContext.messageInterpolator(new LocaleContextMessageInterpolator(targetInterpolator));
084                if (this.traversableResolver != null) {
085                        validatorContext.traversableResolver(this.traversableResolver);
086                }
087
088                setTargetValidator(validatorContext.getValidator());
089        }
090
091}