| /* |
| * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URL; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.nio.file.StandardCopyOption; |
| import java.util.Arrays; |
| |
| /** |
| * A utility to copy the class and all it's inner classes to the specified directory. |
| * <p> |
| * Usage in jtreg: |
| * |
| * @build CopyClassFile |
| * @run main CopyClassFile package.class dest_directory |
| * |
| * In case the source file should be removed add -r option |
| */ |
| public class CopyClassFile { |
| |
| private static final ClassLoader cl = CopyClassFile.class.getClassLoader(); |
| |
| private static String destinationDir; |
| private static String className; |
| private static String classFile; |
| |
| private static boolean removeSource = false; |
| |
| public static void main(String[] args) throws Exception { |
| if (args.length < 2) { |
| throw new IllegalArgumentException("Illegal usage: class name and destination directory should be specified"); |
| } |
| |
| int classNameIndex = parseOptions(args); |
| |
| className = args[classNameIndex]; |
| destinationDir = args[classNameIndex + 1]; |
| classFile = className.replaceAll("\\.", File.separator) + ".class"; |
| |
| URL url = cl.getResource(classFile); |
| if (url == null) { |
| throw new RuntimeException("Could not find a class: " + classFile); |
| } |
| |
| File[] files = new File(url.toURI()) |
| .getParentFile() |
| .listFiles((dir, name) -> name.startsWith(cutPackageName(className)) && name.endsWith(".class")); |
| |
| Arrays.stream(files).forEach(CopyClassFile::copyFile); |
| } |
| |
| private static int parseOptions(String[] args) { |
| int optionsEnd = 0; |
| while (args[optionsEnd].startsWith("-")) { |
| switch (args[optionsEnd].substring(1)) { |
| case "r" : |
| removeSource = true; |
| break; |
| default: |
| throw new RuntimeException("Unrecognized option passed to CopyClassFile: " + args[optionsEnd]); |
| } |
| optionsEnd++; |
| } |
| return optionsEnd; |
| } |
| |
| private static String cutPackageName(String className) { |
| int dotIndex = className.lastIndexOf(".") + 1; |
| if (dotIndex <= 0) { |
| return className; |
| } else { |
| return className.substring(dotIndex); |
| } |
| } |
| |
| private static void copyFile(File f) { |
| try { |
| Path classFilePath = Paths.get(classFile); |
| String packagePath = classFilePath.getParent() == null ? "" : classFilePath.getParent().toString(); |
| Path p = Paths.get(destinationDir + packagePath + File.separator + f.getName()); |
| Files.createDirectories(p.getParent()); |
| try (InputStream is = new FileInputStream(f)) { |
| Files.copy(is, p, StandardCopyOption.REPLACE_EXISTING); |
| } |
| |
| if (removeSource && !f.delete()) { |
| throw new RuntimeException("Failed to delete a file"); |
| } |
| |
| } catch (IOException ex) { |
| throw new RuntimeException("Could not copy file " + f, ex); |
| } |
| } |
| } |