1 /*
   2  * Copyright (c) 2015, 2017, 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 jdk.test.lib;
  25 
  26 import java.io.IOException;
  27 import java.nio.file.FileVisitResult;
  28 import java.nio.file.Files;
  29 import java.nio.file.Path;
  30 import java.nio.file.Paths;
  31 import java.nio.file.SimpleFileVisitor;
  32 import java.nio.file.StandardCopyOption;
  33 import java.nio.file.attribute.BasicFileAttributes;
  34 
  35 // !!!
  36 // NOTE: this class is widely used. DO NOT depend on any other classes in any test library, or else
  37 // you may see intermittent ClassNotFoundException as in JDK-8188828
  38 // !!!
  39 
  40 /**
  41  * Copy a resource: file or directory recursively, using relative path(src and dst)
  42  * which are applied to test source directory(src) and current directory(dst)
  43  */
  44 public class FileInstaller {
  45     public static final String TEST_SRC = System.getProperty("test.src", "").trim();
  46 
  47     /**
  48      * @param args source and destination
  49      * @throws IOException if an I/O error occurs
  50      */
  51     public static void main(String[] args) throws IOException {
  52         if (args.length != 2) {
  53             throw new IllegalArgumentException("Unexpected number of arguments for file copy");
  54         }
  55         Path src = Paths.get(TEST_SRC, args[0]).toAbsolutePath().normalize();
  56         Path dst = Paths.get(args[1]).toAbsolutePath().normalize();
  57         if (src.toFile().exists()) {
  58             System.out.printf("copying %s to %s%n", src, dst);
  59             if (src.toFile().isDirectory()) {
  60                 // can't use Files::copy for dirs, as 'dst' might exist already
  61                 Files.walkFileTree(src, new CopyFileVisitor(src, dst));
  62             } else {
  63                 Path dstDir = dst.getParent();
  64                 if (!dstDir.toFile().exists()) {
  65                     Files.createDirectories(dstDir);
  66                 }
  67                 Files.copy(src, dst, StandardCopyOption.REPLACE_EXISTING);
  68             }
  69         } else {
  70             throw new IOException("Can't find source " + src);
  71         }
  72     }
  73 
  74     private static class CopyFileVisitor extends SimpleFileVisitor<Path> {
  75         private final Path copyFrom;
  76         private final Path copyTo;
  77 
  78         public CopyFileVisitor(Path copyFrom, Path copyTo) {
  79             this.copyFrom = copyFrom;
  80             this.copyTo = copyTo;
  81         }
  82 
  83         @Override
  84         public FileVisitResult preVisitDirectory(Path file,
  85                 BasicFileAttributes attrs) throws IOException {
  86             Path relativePath = copyFrom.relativize(file);
  87             Path destination = copyTo.resolve(relativePath);
  88             if (!destination.toFile().exists()) {
  89                 Files.createDirectories(destination);
  90             }
  91             return FileVisitResult.CONTINUE;
  92         }
  93 
  94         @Override
  95         public FileVisitResult visitFile(Path file,
  96                 BasicFileAttributes attrs) throws IOException {
  97             if (!file.toFile().isFile()) {
  98                 return FileVisitResult.CONTINUE;
  99             }
 100             Path relativePath = copyFrom.relativize(file);
 101             Path destination = copyTo.resolve(relativePath);
 102             Files.copy(file, destination, StandardCopyOption.COPY_ATTRIBUTES);
 103             return FileVisitResult.CONTINUE;
 104         }
 105     }
 106 }