| /* |
| * 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.axis2.classloader; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.net.URLStreamHandler; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| |
| /** |
| * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $ |
| */ |
| public class JarFileUrlStreamHandler extends URLStreamHandler { |
| public static URL createUrl(JarFile jarFile, JarEntry jarEntry) throws MalformedURLException { |
| return createUrl(jarFile, jarEntry, new File(jarFile.getName()).toURL()); |
| } |
| |
| public static URL createUrl(JarFile jarFile, JarEntry jarEntry, URL codeSource) throws MalformedURLException { |
| JarFileUrlStreamHandler handler = new JarFileUrlStreamHandler(jarFile, jarEntry); |
| URL url = new URL("jar", "", -1, codeSource + "!/" + jarEntry.getName(), handler); |
| handler.setExpectedUrl(url); |
| return url; |
| } |
| |
| private URL expectedUrl; |
| private JarFile jarFile = null; |
| private JarEntry jarEntry = null; |
| |
| public JarFileUrlStreamHandler() { |
| } |
| |
| public JarFileUrlStreamHandler(JarFile jarFile, JarEntry jarEntry) { |
| if (jarFile == null) throw new NullPointerException("jarFile is null"); |
| if (jarEntry == null) throw new NullPointerException("jarEntry is null"); |
| |
| this.jarFile = jarFile; |
| this.jarEntry = jarEntry; |
| } |
| |
| public void setExpectedUrl(URL expectedUrl) { |
| if (expectedUrl == null) throw new NullPointerException("expectedUrl is null"); |
| this.expectedUrl = expectedUrl; |
| } |
| |
| public URLConnection openConnection(URL url) throws IOException { |
| |
| if (expectedUrl == null || !expectedUrl.equals(url)) { |
| // the new url is supposed to be within our context, so it must have a jar protocol |
| if (!url.getProtocol().equals("jar")) { |
| throw new IllegalArgumentException("Unsupported protocol " + url.getProtocol()); |
| } |
| |
| // split the path at "!/" into the file part and entry part |
| String path = url.getPath(); |
| String[] chunks = path.split("!/", 2); |
| |
| // if we only got only one chunk, it didn't contain the required "!/" delimiter |
| if (chunks.length == 1) { |
| throw new MalformedURLException("Url does not contain a '!' character: " + url); |
| } |
| |
| String file = chunks[0]; |
| String entryPath = chunks[1]; |
| |
| // this handler only supports jars on the local file system |
| if (!file.startsWith("file:")) { |
| // let the system handler deal with this |
| return new URL(url.toExternalForm()).openConnection(); |
| } |
| file = file.substring("file:".length()); |
| |
| File f = new File(file); |
| if (f.exists()) { |
| jarFile = new JarFile(f); |
| } |
| |
| if (jarFile == null) { |
| throw new FileNotFoundException("Cannot find JarFile: " + file); |
| } |
| |
| // get the entry |
| jarEntry = jarFile.getJarEntry(entryPath); |
| if (jarEntry == null) { |
| throw new FileNotFoundException("Entry not found: " + url); |
| } |
| expectedUrl = url; |
| } |
| |
| return new JarFileUrlConnection(url, jarFile, jarEntry); |
| } |
| } |