spring JarResourceManager 源码
springboot JarResourceManager 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/JarResourceManager.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.web.embedded.undertow;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import io.undertow.UndertowMessages;
import io.undertow.server.handlers.resource.Resource;
import io.undertow.server.handlers.resource.ResourceChangeListener;
import io.undertow.server.handlers.resource.ResourceManager;
import io.undertow.server.handlers.resource.URLResource;
import org.springframework.util.StringUtils;
/**
* {@link ResourceManager} for JAR resources.
*
* @author Ivan Sopov
* @author Andy Wilkinson
*/
class JarResourceManager implements ResourceManager {
private final String jarPath;
JarResourceManager(File jarFile) {
try {
this.jarPath = jarFile.getAbsoluteFile().toURI().toURL().toString();
}
catch (MalformedURLException ex) {
throw new IllegalArgumentException(ex);
}
}
@Override
public Resource getResource(String path) throws IOException {
URL url = new URL("jar:" + this.jarPath + "!" + (path.startsWith("/") ? path : "/" + path));
URLResource resource = new URLResource(url, path);
if (StringUtils.hasText(path) && !"/".equals(path) && resource.getContentLength() < 0) {
return null;
}
return resource;
}
@Override
public boolean isResourceChangeListenerSupported() {
return false;
}
@Override
public void registerResourceChangeListener(ResourceChangeListener listener) {
throw UndertowMessages.MESSAGES.resourceChangeListenerNotSupported();
}
@Override
public void removeResourceChangeListener(ResourceChangeListener listener) {
throw UndertowMessages.MESSAGES.resourceChangeListenerNotSupported();
}
@Override
public void close() throws IOException {
}
}
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- 本文标签： Spring Boot Java Spring
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