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  * @author igor.ignatyev@oracle.com
  39  */
  40 public class ClassPathJarEntry extends PathHandler {
  41 
  42     public ClassPathJarEntry(Path root, Executor executor) {
  43         super(root, executor);
  44         try {
  45             URL url = root.toUri().toURL();
  46             setLoader(new URLClassLoader(new URL[]{url}));
  47         } catch (MalformedURLException e) {
  48             e.printStackTrace();
  49         }
  50     }
  51 
  52     @Override
  53     public void process() {
  54         System.out.println("# jar: " + root);
  55         if (!Files.exists(root)) {
  56             return;
  57         }
  58         try {
  59             JarFile jarFile = new JarFile(root.toFile());
  60             JarEntry entry;
  61             for (Enumeration<JarEntry> e = jarFile.entries();
  62                     e.hasMoreElements(); ) {
  63                 entry = e.nextElement();
  64                 compileJarEntry(entry);
  65                 if (isFinished()) {
  66                     return;
  67                 }
  68             }
  69         } catch (IOException ioe) {
  70             ioe.printStackTrace();
  71         }
  72     }
  73 
  74      private void compileJarEntry(JarEntry entry) {
  75         String filename = entry.getName();
  76         if (Utils.isClassFile(filename)) {
  77             compileWholeClass(Utils.fileNameToClassName(filename));
  78         }
  79     }
  80 }
  81