1/* 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24package sun.hotspot.tools.ctw; 25 26import java.io.IOException; 27import java.nio.file.DirectoryStream; 28import java.nio.file.Files; 29import java.nio.file.Path; 30import java.util.List; 31import java.util.Objects; 32import java.util.stream.Collectors; 33import java.util.stream.Stream; 34 35/** 36 * Handler for dirs containing jar-files with classes to compile. 37 */ 38public class ClassPathJarInDirEntry { 39 public static List<PathHandler> create(Path path) { 40 Objects.requireNonNull(path); 41 if (!Files.exists(path)) { 42 throw new Error(path + " directory not found"); 43 } 44 try { 45 return Stream.concat( 46 Stream.of(new PathHandler(new JarInDirEntry(path))), 47 Files.list(path) 48 .filter(p -> p.getFileName().toString().endsWith(".jar")) 49 .map(ClassPathJarEntry::new) 50 .map(PathHandler::new)) 51 .collect(Collectors.toList()); 52 } catch (IOException e) { 53 throw new Error("can not read " + path + " directory : " + e.getMessage(), e); 54 } 55 } 56 57 // dummy path handler, used just to print description before real handlers. 58 private static class JarInDirEntry extends PathHandler.PathEntry { 59 private JarInDirEntry(Path root) { 60 super(root); 61 } 62 63 @Override 64 protected byte[] findByteCode(String name) { 65 return null; 66 } 67 68 @Override 69 protected Stream<String> classes() { 70 return Stream.empty(); 71 } 72 73 @Override 74 protected String description() { 75 return "# jar_in_dir: " + root; 76 } 77 } 78} 79 80