spring ResourcePropertiesPersister 源码
spring ResourcePropertiesPersister 代码
文件路径：/spring-core/src/main/java/org/springframework/core/io/support/ResourcePropertiesPersister.java
/*
* Copyright 2002-2020 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.io.support;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;
import org.springframework.core.SpringProperties;
import org.springframework.util.DefaultPropertiesPersister;
/**
* Spring-aware subclass of the plain {@link DefaultPropertiesPersister},
* adding a conditional check for disabled XML support through the shared
* "spring.xml.ignore" property.
*
* <p>This is the standard implementation used in Spring's resource support.
*
* @author Juergen Hoeller
* @author Sebastien Deleuze
* @since 5.3
*/
public class ResourcePropertiesPersister extends DefaultPropertiesPersister {
/**
* A convenient constant for a default {@code ResourcePropertiesPersister} instance,
* as used in Spring's common resource support.
* @since 5.3
*/
public static final ResourcePropertiesPersister INSTANCE = new ResourcePropertiesPersister();
/**
* Boolean flag controlled by a {@code spring.xml.ignore} system property that instructs Spring to
* ignore XML, i.e. to not initialize the XML-related infrastructure.
* <p>The default is "false".
*/
private static final boolean shouldIgnoreXml = SpringProperties.getFlag("spring.xml.ignore");
@Override
public void loadFromXml(Properties props, InputStream is) throws IOException {
if (shouldIgnoreXml) {
throw new UnsupportedOperationException("XML support disabled");
}
super.loadFromXml(props, is);
}
@Override
public void storeToXml(Properties props, OutputStream os, String header) throws IOException {
if (shouldIgnoreXml) {
throw new UnsupportedOperationException("XML support disabled");
}
super.storeToXml(props, os, header);
}
@Override
public void storeToXml(Properties props, OutputStream os, String header, String encoding) throws IOException {
if (shouldIgnoreXml) {
throw new UnsupportedOperationException("XML support disabled");
}
super.storeToXml(props, os, header, encoding);
}
}
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