spring SimpleConfigurationMetadataRepository 源码
springboot SimpleConfigurationMetadataRepository 代码
文件路径:/spring-boot-project/spring-boot-tools/spring-boot-configuration-metadata/src/main/java/org/springframework/boot/configurationmetadata/SimpleConfigurationMetadataRepository.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.configurationmetadata;
import java.io.Serializable;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/**
* The default {@link ConfigurationMetadataRepository} implementation.
*
* @author Stephane Nicoll
* @since 1.3.0
*/
@SuppressWarnings("serial")
public class SimpleConfigurationMetadataRepository implements ConfigurationMetadataRepository, Serializable {
private final Map<String, ConfigurationMetadataGroup> allGroups = new HashMap<>();
@Override
public Map<String, ConfigurationMetadataGroup> getAllGroups() {
return Collections.unmodifiableMap(this.allGroups);
}
@Override
public Map<String, ConfigurationMetadataProperty> getAllProperties() {
Map<String, ConfigurationMetadataProperty> properties = new HashMap<>();
for (ConfigurationMetadataGroup group : this.allGroups.values()) {
properties.putAll(group.getProperties());
}
return properties;
}
/**
* Register the specified {@link ConfigurationMetadataSource sources}.
* @param sources the sources to add
*/
public void add(Collection<ConfigurationMetadataSource> sources) {
for (ConfigurationMetadataSource source : sources) {
String groupId = source.getGroupId();
ConfigurationMetadataGroup group = this.allGroups.get(groupId);
if (group == null) {
group = new ConfigurationMetadataGroup(groupId);
this.allGroups.put(groupId, group);
}
String sourceType = source.getType();
if (sourceType != null) {
addOrMergeSource(group.getSources(), sourceType, source);
}
}
}
/**
* Add a {@link ConfigurationMetadataProperty} with the
* {@link ConfigurationMetadataSource source} that defines it, if any.
* @param property the property to add
* @param source the source
*/
public void add(ConfigurationMetadataProperty property, ConfigurationMetadataSource source) {
if (source != null) {
putIfAbsent(source.getProperties(), property.getId(), property);
}
putIfAbsent(getGroup(source).getProperties(), property.getId(), property);
}
/**
* Merge the content of the specified repository to this repository.
* @param repository the repository to include
*/
public void include(ConfigurationMetadataRepository repository) {
for (ConfigurationMetadataGroup group : repository.getAllGroups().values()) {
ConfigurationMetadataGroup existingGroup = this.allGroups.get(group.getId());
if (existingGroup == null) {
this.allGroups.put(group.getId(), group);
}
else {
// Merge properties
group.getProperties().forEach((name, value) -> putIfAbsent(existingGroup.getProperties(), name, value));
// Merge sources
group.getSources().forEach((name, value) -> addOrMergeSource(existingGroup.getSources(), name, value));
}
}
}
private ConfigurationMetadataGroup getGroup(ConfigurationMetadataSource source) {
if (source == null) {
ConfigurationMetadataGroup rootGroup = this.allGroups.get(ROOT_GROUP);
if (rootGroup == null) {
rootGroup = new ConfigurationMetadataGroup(ROOT_GROUP);
this.allGroups.put(ROOT_GROUP, rootGroup);
}
return rootGroup;
}
return this.allGroups.get(source.getGroupId());
}
private void addOrMergeSource(Map<String, ConfigurationMetadataSource> sources, String name,
ConfigurationMetadataSource source) {
ConfigurationMetadataSource existingSource = sources.get(name);
if (existingSource == null) {
sources.put(name, source);
}
else {
source.getProperties().forEach((k, v) -> putIfAbsent(existingSource.getProperties(), k, v));
}
}
private <V> void putIfAbsent(Map<String, V> map, String key, V value) {
if (!map.containsKey(key)) {
map.put(key, value);
}
}
}
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