spring PropertySourceLoader 源码
springboot PropertySourceLoader 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/env/PropertySourceLoader.java
/*
* Copyright 2012-2019 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
*
* https://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.env;
import java.io.IOException;
import java.util.List;
import org.springframework.core.env.PropertySource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.SpringFactoriesLoader;
/**
* Strategy interface located via {@link SpringFactoriesLoader} and used to load a
* {@link PropertySource}.
*
* @author Dave Syer
* @author Phillip Webb
* @since 1.0.0
*/
public interface PropertySourceLoader {
/**
* Returns the file extensions that the loader supports (excluding the '.').
* @return the file extensions
*/
String[] getFileExtensions();
/**
* Load the resource into one or more property sources. Implementations may either
* return a list containing a single source, or in the case of a multi-document format
* such as yaml a source for each document in the resource.
* @param name the root name of the property source. If multiple documents are loaded
* an additional suffix should be added to the name for each source loaded.
* @param resource the resource to load
* @return a list property sources
* @throws IOException if the source cannot be loaded
*/
List<PropertySource<?>> load(String name, Resource resource) throws IOException;
}
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