spring AliasedIterableConfigurationPropertySource 源码
springboot AliasedIterableConfigurationPropertySource 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/source/AliasedIterableConfigurationPropertySource.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.context.properties.source;
import java.util.List;
import java.util.stream.Stream;
import org.springframework.util.CollectionUtils;
/**
* A {@link IterableConfigurationPropertySource} supporting name aliases.
*
* @author Phillip Webb
* @author Madhura Bhave
*/
class AliasedIterableConfigurationPropertySource extends AliasedConfigurationPropertySource
implements IterableConfigurationPropertySource {
AliasedIterableConfigurationPropertySource(IterableConfigurationPropertySource source,
ConfigurationPropertyNameAliases aliases) {
super(source, aliases);
}
@Override
public Stream<ConfigurationPropertyName> stream() {
return getSource().stream().flatMap(this::addAliases);
}
private Stream<ConfigurationPropertyName> addAliases(ConfigurationPropertyName name) {
Stream<ConfigurationPropertyName> names = Stream.of(name);
List<ConfigurationPropertyName> aliases = getAliases().getAliases(name);
if (CollectionUtils.isEmpty(aliases)) {
return names;
}
return Stream.concat(names, aliases.stream());
}
@Override
protected IterableConfigurationPropertySource getSource() {
return (IterableConfigurationPropertySource) super.getSource();
}
}
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- 本文标签： Spring Boot Java Spring
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