org.springframework.boot.env.PropertySourceLoader Maven / Gradle / Ivy
/*
* Copyright 2012-2015 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.env;
import java.io.IOException;
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
*/
public interface PropertySourceLoader {
/**
* Returns the file extensions that the loader supports (excluding the '.').
* @return the file extensions
*/
String[] getFileExtensions();
/**
* Load the resource into a property source.
* @param name the name of the property source
* @param resource the resource to load
* @param profile the name of the profile to load or {@code null}. The profile can be
* used to load multi-document files (such as YAML). Simple property formats should
* {@code null} when asked to load a profile.
* @return a property source or {@code null}
* @throws IOException if the source cannot be loaded
*/
PropertySource load(String name, Resource resource, String profile)
throws IOException;
}