Java tutorial
/* * Copyright 2012-2017 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.boot.context.properties; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.boot.validation.MessageInterpolatorFactory; import org.springframework.context.ApplicationContext; import org.springframework.core.annotation.AnnotatedElementUtils; import org.springframework.validation.annotation.Validated; import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean; /** * {@link LocalValidatorFactoryBean} supports classes annotated with * {@link Validated @Validated}. * * @author Phillip Webb */ class ValidatedLocalValidatorFactoryBean extends LocalValidatorFactoryBean implements ConfigurationPropertiesBinder.InternalValidator { private static final Log logger = LogFactory.getLog(ConfigurationPropertiesBindingPostProcessor.class); ValidatedLocalValidatorFactoryBean(ApplicationContext applicationContext) { setApplicationContext(applicationContext); setMessageInterpolator(new MessageInterpolatorFactory().getObject()); afterPropertiesSet(); } @Override public boolean supports(Class<?> type) { if (!super.supports(type)) { return false; } if (AnnotatedElementUtils.hasAnnotation(type, Validated.class)) { return true; } if (type.getPackage() != null && type.getPackage().getName().startsWith("org.springframework.boot")) { return false; } if (getConstraintsForClass(type).isBeanConstrained()) { logger.warn("The @ConfigurationProperties bean " + type + " contains validation constraints but had not been annotated " + "with @Validated."); } return true; } }