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.*; 30 import java.util.jar.*; 31 import java.util.concurrent.Executor; 32 33 import java.io.*; 34 import java.nio.file.*; 35 36 /** 37 * Handler for jar-files containing classes to compile. 38 */ 39 public class ClassPathJarEntry extends PathHandler { 40 41 public ClassPathJarEntry(Path root, Executor executor) { 42 super(root, executor); 43 try { 44 URL url = root.toUri().toURL(); 45 setLoader(new URLClassLoader(new URL[]{url})); 46 } catch (MalformedURLException e) { 47 e.printStackTrace(); 48 } 49 } 50 51 @Override 52 public void process() { 53 CompileTheWorld.OUT.println("# jar: " + root); 54 if (!Files.exists(root)) { 55 return; 56 } 57 try (JarFile jarFile = new JarFile(root.toFile())) { 58 JarEntry entry; 59 for (Enumeration<JarEntry> e = jarFile.entries(); 60 e.hasMoreElements(); ) { 61 entry = e.nextElement(); 62 processJarEntry(entry); 63 if (isFinished()) { 64 return; 65 } 66 } 67 } catch (IOException ioe) { 68 ioe.printStackTrace(); 69 } 70 } 71 72 @Override 73 public long classCount() { 74 try (JarFile jarFile = new JarFile(root.toFile())) { 75 return jarFile.stream() 76 .map(JarEntry::getName) 77 .filter(Utils::isClassFile) 78 .count(); 79 } catch (IOException e) { 80 throw new Error("can not open jar file " + root + " : " 81 + e.getMessage() , e); 82 } 83 } 84 85 private void processJarEntry(JarEntry entry) { 86 String filename = entry.getName(); 87 if (Utils.isClassFile(filename)) { 88 processClass(Utils.fileNameToClassName(filename)); 89 } 90 } 91 } 92