| /** |
| * 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.xbean.finder.archive; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * @version $Rev$ $Date: 2012/05/03 13:43:15 $ |
| */ |
| public class FileArchive implements Archive { |
| |
| private final ClassLoader loader; |
| private final File dir; |
| |
| public FileArchive(ClassLoader loader, URL url) { |
| this.loader = loader; |
| this.dir = toFile(url); |
| } |
| |
| public FileArchive(ClassLoader loader, File dir) { |
| this.loader = loader; |
| this.dir = dir; |
| } |
| |
| public InputStream getBytecode(String className) throws IOException, ClassNotFoundException { |
| int pos = className.indexOf("<"); |
| if (pos > -1) { |
| className = className.substring(0, pos); |
| } |
| pos = className.indexOf(">"); |
| if (pos > -1) { |
| className = className.substring(0, pos); |
| } |
| if (!className.endsWith(".class")) { |
| className = className.replace('.', '/') + ".class"; |
| } |
| |
| URL resource = loader.getResource(className); |
| if (resource != null) return resource.openStream(); |
| |
| throw new ClassNotFoundException(className); |
| } |
| |
| |
| public Class<?> loadClass(String className) throws ClassNotFoundException { |
| return loader.loadClass(className); |
| } |
| |
| public Iterator<String> iterator() { |
| return file(dir).iterator(); |
| } |
| |
| private List<String> file(File dir) { |
| List<String> classNames = new ArrayList<String>(); |
| if (dir.isDirectory()) { |
| scanDir(dir, classNames, ""); |
| } |
| return classNames; |
| } |
| |
| private void scanDir(File dir, List<String> classNames, String packageName) { |
| File[] files = dir.listFiles(); |
| for (File file : files) { |
| if (file.isDirectory()) { |
| scanDir(file, classNames, packageName + file.getName() + "."); |
| } else if (file.getName().endsWith(".class")) { |
| String name = file.getName(); |
| name = name.replaceFirst(".class$", ""); |
| if (name.contains(".")) continue; |
| classNames.add(packageName + name); |
| } |
| } |
| } |
| |
| private static File toFile(URL url) { |
| if (!"file".equals(url.getProtocol())) throw new IllegalArgumentException("not a file url: " + url); |
| String path = url.getFile(); |
| File dir = new File(decode(path)); |
| if (dir.getName().equals("META-INF")) { |
| dir = dir.getParentFile(); // Scrape "META-INF" off |
| } |
| return dir; |
| } |
| |
| public static String decode(String fileName) { |
| if (fileName.indexOf('%') == -1) return fileName; |
| |
| StringBuilder result = new StringBuilder(fileName.length()); |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| |
| for (int i = 0; i < fileName.length();) { |
| char c = fileName.charAt(i); |
| |
| if (c == '%') { |
| out.reset(); |
| do { |
| if (i + 2 >= fileName.length()) { |
| throw new IllegalArgumentException("Incomplete % sequence at: " + i); |
| } |
| |
| int d1 = Character.digit(fileName.charAt(i + 1), 16); |
| int d2 = Character.digit(fileName.charAt(i + 2), 16); |
| |
| if (d1 == -1 || d2 == -1) { |
| throw new IllegalArgumentException("Invalid % sequence (" + fileName.substring(i, i + 3) + ") at: " + String.valueOf(i)); |
| } |
| |
| out.write((byte) ((d1 << 4) + d2)); |
| |
| i += 3; |
| |
| } while (i < fileName.length() && fileName.charAt(i) == '%'); |
| |
| |
| result.append(out.toString()); |
| |
| continue; |
| } else { |
| result.append(c); |
| } |
| |
| i++; |
| } |
| return result.toString(); |
| } |
| } |