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 24 package sun.hotspot.tools.ctw; 25 26 import java.net.MalformedURLException; 27 import java.net.URL; 28 import java.net.URLClassLoader; 29 import java.util.Set; 30 import java.util.EnumSet; 31 import java.util.HashSet; 32 import java.util.concurrent.Executor; 33 34 import java.io.*; 35 import java.nio.file.*; 36 import java.nio.file.attribute.*; 37 38 /** 39 * * Handler for dirs containing classes to compile. 40 * @author igor.ignatyev@oracle.com 41 */ 42 public class ClassPathDirEntry extends PathHandler { 43 44 private final int rootLength = root.toString().length(); 45 46 public ClassPathDirEntry(Path root, Executor executor) { 47 super(root, executor); 48 try { 49 URL url = root.toUri().toURL(); 50 setLoader(new URLClassLoader(new URL[]{url})); 51 } catch (MalformedURLException e) { 52 e.printStackTrace(); 53 } 54 } 55 56 @Override 57 public void process() { 58 System.out.println("# dir: " + root); 59 if (!Files.exists(root)) { 60 return; 61 } 62 try { 63 Files.walkFileTree(root, EnumSet.of(FileVisitOption.FOLLOW_LINKS), 64 Integer.MAX_VALUE, new CompileFileVisitor()); 65 } catch (IOException ioe) { 66 ioe.printStackTrace(); 67 } 68 } 69 70 private void processFile(Path file) { 71 if (Utils.isClassFile(file.toString())) { 72 processClass(pathToClassName(file)); 73 } 74 } 75 76 private String pathToClassName(Path file) { 77 String fileString; 78 if (root == file) { 79 fileString = file.normalize().toString(); 80 } else { 81 fileString = file.normalize().toString().substring(rootLength + 1); 82 } 83 return Utils.fileNameToClassName(fileString); 84 } 85 86 private class CompileFileVisitor extends SimpleFileVisitor<Path> { 87 88 private final Set<Path> ready = new HashSet<>(); 89 90 @Override 91 public FileVisitResult preVisitDirectory(Path dir, 92 BasicFileAttributes attrs) throws IOException { 93 if (ready.contains(dir)) { 94 return FileVisitResult.SKIP_SUBTREE; 95 } 96 ready.add(dir); 97 return super.preVisitDirectory(dir, attrs); 98 } 99 100 @Override 101 public FileVisitResult visitFile(Path file, 102 BasicFileAttributes attrs) throws IOException { 103 if (!ready.contains(file)) { 104 processFile(file); 105 } 106 return isFinished() ? FileVisitResult.TERMINATE 107 : FileVisitResult.CONTINUE; 108 } 109 110 @Override 111 public FileVisitResult visitFileFailed(Path file, 112 IOException exc) throws IOException { 113 return FileVisitResult.CONTINUE; 114 } 115 } 116 } 117