spring PropertiesPropertySource 源码
spring PropertiesPropertySource 代码
文件路径：/spring-core/src/main/java/org/springframework/core/env/PropertiesPropertySource.java
/*
* Copyright 2002-2019 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.core.env;
import java.util.Map;
import java.util.Properties;
/**
* {@link PropertySource} implementation that extracts properties from a
* {@link java.util.Properties} object.
*
* <p>Note that because a {@code Properties} object is technically an
* {@code <Object, Object>} {@link java.util.Hashtable Hashtable}, one may contain
* non-{@code String} keys or values. This implementation, however is restricted to
* accessing only {@code String}-based keys and values, in the same fashion as
* {@link Properties#getProperty} and {@link Properties#setProperty}.
*
* @author Chris Beams
* @author Juergen Hoeller
* @since 3.1
*/
public class PropertiesPropertySource extends MapPropertySource {
@SuppressWarnings({"rawtypes", "unchecked"})
public PropertiesPropertySource(String name, Properties source) {
super(name, (Map) source);
}
protected PropertiesPropertySource(String name, Map<String, Object> source) {
super(name, source);
}
@Override
public String[] getPropertyNames() {
synchronized (this.source) {
return super.getPropertyNames();
}
}
}
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