001/*
002 * Copyright 2012-2018 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 *      http://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.boot.context.properties;
018
019import org.springframework.beans.factory.config.BeanDefinition;
020import org.springframework.beans.factory.support.BeanDefinitionRegistry;
021import org.springframework.beans.factory.support.GenericBeanDefinition;
022import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
023import org.springframework.core.type.AnnotationMetadata;
024
025/**
026 * {@link ImportBeanDefinitionRegistrar} for binding externalized application properties
027 * to {@link ConfigurationProperties} beans.
028 *
029 * @author Dave Syer
030 * @author Phillip Webb
031 */
032public class ConfigurationPropertiesBindingPostProcessorRegistrar
033                implements ImportBeanDefinitionRegistrar {
034
035        @Override
036        public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata,
037                        BeanDefinitionRegistry registry) {
038                if (!registry.containsBeanDefinition(
039                                ConfigurationPropertiesBindingPostProcessor.BEAN_NAME)) {
040                        registerConfigurationPropertiesBindingPostProcessor(registry);
041                        registerConfigurationBeanFactoryMetadata(registry);
042                }
043        }
044
045        private void registerConfigurationPropertiesBindingPostProcessor(
046                        BeanDefinitionRegistry registry) {
047                GenericBeanDefinition definition = new GenericBeanDefinition();
048                definition.setBeanClass(ConfigurationPropertiesBindingPostProcessor.class);
049                definition.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
050                registry.registerBeanDefinition(
051                                ConfigurationPropertiesBindingPostProcessor.BEAN_NAME, definition);
052
053        }
054
055        private void registerConfigurationBeanFactoryMetadata(
056                        BeanDefinitionRegistry registry) {
057                GenericBeanDefinition definition = new GenericBeanDefinition();
058                definition.setBeanClass(ConfigurationBeanFactoryMetadata.class);
059                definition.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
060                registry.registerBeanDefinition(ConfigurationBeanFactoryMetadata.BEAN_NAME,
061                                definition);
062        }
063
064}