org.springframework.boot.env.PropertiesPropertySourceLoader Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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.Collections;
import java.util.List;
import java.util.Map;
import org.springframework.core.env.PropertySource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PropertiesLoaderUtils;
/**
* Strategy to load '.properties' files into a {@link PropertySource}.
*
* @author Dave Syer
* @author Phillip Webb
* @author Madhura Bhave
*/
public class PropertiesPropertySourceLoader implements PropertySourceLoader {
private static final String XML_FILE_EXTENSION = ".xml";
@Override
public String[] getFileExtensions() {
return new String[] { "properties", "xml" };
}
@Override
public List> load(String name, Resource resource)
throws IOException {
Map properties = loadProperties(resource);
if (properties.isEmpty()) {
return Collections.emptyList();
}
return Collections
.singletonList(new OriginTrackedMapPropertySource(name, properties));
}
@SuppressWarnings({ "unchecked", "rawtypes" })
private Map loadProperties(Resource resource) throws IOException {
String filename = resource.getFilename();
if (filename != null && filename.endsWith(XML_FILE_EXTENSION)) {
return (Map) PropertiesLoaderUtils.loadProperties(resource);
}
return new OriginTrackedPropertiesLoader(resource).load();
}
}