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}