spring FilteredConfigurationPropertiesSource 源码

  • 2022-08-12
  • 浏览 (482)

springboot FilteredConfigurationPropertiesSource 代码

文件路径:/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/source/FilteredConfigurationPropertiesSource.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.function.Predicate;

import org.springframework.util.Assert;

/**
 * A filtered {@link ConfigurationPropertySource}.
 *
 * @author Phillip Webb
 * @author Madhura Bhave
 */
class FilteredConfigurationPropertiesSource implements ConfigurationPropertySource {

	private final ConfigurationPropertySource source;

	private final Predicate<ConfigurationPropertyName> filter;

	FilteredConfigurationPropertiesSource(ConfigurationPropertySource source,
			Predicate<ConfigurationPropertyName> filter) {
		Assert.notNull(source, "Source must not be null");
		Assert.notNull(filter, "Filter must not be null");
		this.source = source;
		this.filter = filter;
	}

	@Override
	public ConfigurationProperty getConfigurationProperty(ConfigurationPropertyName name) {
		boolean filtered = getFilter().test(name);
		return filtered ? getSource().getConfigurationProperty(name) : null;
	}

	@Override
	public ConfigurationPropertyState containsDescendantOf(ConfigurationPropertyName name) {
		ConfigurationPropertyState result = this.source.containsDescendantOf(name);
		if (result == ConfigurationPropertyState.PRESENT) {
			// We can't be sure a contained descendant won't be filtered
			return ConfigurationPropertyState.UNKNOWN;
		}
		return result;
	}

	@Override
	public Object getUnderlyingSource() {
		return this.source.getUnderlyingSource();
	}

	protected ConfigurationPropertySource getSource() {
		return this.source;
	}

	protected Predicate<ConfigurationPropertyName> getFilter() {
		return this.filter;
	}

	@Override
	public String toString() {
		return this.source.toString() + " (filtered)";
	}

}

相关信息

spring 源码目录

相关文章

spring AliasedConfigurationPropertySource 源码

spring AliasedIterableConfigurationPropertySource 源码

spring CachingConfigurationPropertySource 源码

spring ConfigurationProperty 源码

spring ConfigurationPropertyCaching 源码

spring ConfigurationPropertyName 源码

spring ConfigurationPropertyNameAliases 源码

spring ConfigurationPropertySource 源码

spring ConfigurationPropertySources 源码

spring ConfigurationPropertySourcesCaching 源码

0  赞