spring PrefixedConfigurationPropertySource 源码
springboot PrefixedConfigurationPropertySource 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/source/PrefixedConfigurationPropertySource.java
/*
* Copyright 2012-2021 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 org.springframework.util.Assert;
/**
* A {@link ConfigurationPropertySource} supporting a prefix.
*
* @author Madhura Bhave
*/
class PrefixedConfigurationPropertySource implements ConfigurationPropertySource {
private final ConfigurationPropertySource source;
private final ConfigurationPropertyName prefix;
PrefixedConfigurationPropertySource(ConfigurationPropertySource source, String prefix) {
Assert.notNull(source, "Source must not be null");
Assert.hasText(prefix, "Prefix must not be empty");
this.source = source;
this.prefix = ConfigurationPropertyName.of(prefix);
}
protected final ConfigurationPropertyName getPrefix() {
return this.prefix;
}
@Override
public ConfigurationProperty getConfigurationProperty(ConfigurationPropertyName name) {
ConfigurationProperty configurationProperty = this.source.getConfigurationProperty(getPrefixedName(name));
if (configurationProperty == null) {
return null;
}
return ConfigurationProperty.of(configurationProperty.getSource(), name, configurationProperty.getValue(),
configurationProperty.getOrigin());
}
private ConfigurationPropertyName getPrefixedName(ConfigurationPropertyName name) {
return this.prefix.append(name);
}
@Override
public ConfigurationPropertyState containsDescendantOf(ConfigurationPropertyName name) {
return this.source.containsDescendantOf(getPrefixedName(name));
}
@Override
public Object getUnderlyingSource() {
return this.source.getUnderlyingSource();
}
protected ConfigurationPropertySource getSource() {
return this.source;
}
}
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- 本文标签： Spring Boot Spring Java
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