001/*
002 * Copyright 2012-2017 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 *      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.autoconfigure.context;
018
019import org.springframework.boot.autoconfigure.AutoConfigureOrder;
020import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
021import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
022import org.springframework.boot.autoconfigure.condition.SearchStrategy;
023import org.springframework.context.annotation.Bean;
024import org.springframework.context.annotation.Configuration;
025import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
026import org.springframework.core.Ordered;
027
028/**
029 * {@link EnableAutoConfiguration Auto-configuration} for
030 * {@link PropertySourcesPlaceholderConfigurer}.
031 *
032 * @author Phillip Webb
033 * @author Dave Syer
034 */
035@Configuration
036@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE)
037public class PropertyPlaceholderAutoConfiguration {
038
039        @Bean
040        @ConditionalOnMissingBean(search = SearchStrategy.CURRENT)
041        public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
042                return new PropertySourcesPlaceholderConfigurer();
043        }
044
045}