/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.apache.tomcat.util.scan;
import java.io.IOException;
import java.net.JarURLConnection;
import java.net.URL;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
/**
* Implementation of {@link org.apache.tomcat.Jar} that is optimised for file based JAR URLs that refer to a JAR file
* nested inside a WAR (e.g. URLs of the form jar:file: ... .war!/ ... .jar).
*/
public class JarFileUrlNestedJar extends AbstractInputStreamJar {
private final JarFile warFile;
private final JarEntry jarEntry;
public JarFileUrlNestedJar(URL url) throws IOException {
super(url);
JarURLConnection jarConn = (JarURLConnection) url.openConnection();
jarConn.setUseCaches(false);
warFile = jarConn.getJarFile();
String urlAsString = url.toString();
int pathStart = urlAsString.indexOf("!/") + 2;
String jarPath = urlAsString.substring(pathStart);
jarEntry = warFile.getJarEntry(jarPath);
}
@Override
public void close() {
closeStream();
if (warFile != null) {
try {
warFile.close();
} catch (IOException ignore) {
// Ignore
}
}
}
@Override
protected NonClosingJarInputStream createJarInputStream() throws IOException {
return new NonClosingJarInputStream(warFile.getInputStream(jarEntry));
}
}