spring ConfigurationProperties 源码
springboot ConfigurationProperties 代码
文件路径：/buildSrc/src/main/java/org/springframework/boot/build/context/properties/ConfigurationProperties.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.build.context.properties;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Stream;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* Configuration properties read from one or more
* {@code META-INF/spring-configuration-metadata.json} files.
*
* @author Andy Wilkinson
* @author Phillip Webb
*/
final class ConfigurationProperties {
private final Map<String, ConfigurationProperty> byName;
private ConfigurationProperties(List<ConfigurationProperty> properties) {
Map<String, ConfigurationProperty> byName = new LinkedHashMap<>();
for (ConfigurationProperty property : properties) {
byName.put(property.getName(), property);
}
this.byName = Collections.unmodifiableMap(byName);
}
ConfigurationProperty get(String propertyName) {
return this.byName.get(propertyName);
}
Stream<ConfigurationProperty> stream() {
return this.byName.values().stream();
}
@SuppressWarnings("unchecked")
static ConfigurationProperties fromFiles(Iterable<File> files) {
try {
ObjectMapper objectMapper = new ObjectMapper();
List<ConfigurationProperty> properties = new ArrayList<>();
for (File file : files) {
Map<String, Object> json = objectMapper.readValue(file, Map.class);
for (Map<String, Object> property : (List<Map<String, Object>>) json.get("properties")) {
properties.add(ConfigurationProperty.fromJsonProperties(property));
}
}
return new ConfigurationProperties(properties);
}
catch (IOException ex) {
throw new RuntimeException("Failed to load configuration metadata", ex);
}
}
}
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- 所属分类： 后端技术
- 本文标签： Java Spring Spring Boot
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