1 /*
   2  * Copyright (c) 2009, 2019, 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 import java.nio.file.AccessMode;
  25 import java.nio.file.ClosedFileSystemException;
  26 import java.nio.file.FileStore;
  27 import java.nio.file.FileSystem;
  28 import java.nio.file.FileSystems;
  29 import java.nio.file.FileVisitResult;
  30 import java.nio.file.Files;
  31 import java.nio.file.Path;
  32 import java.nio.file.Paths;
  33 import java.nio.file.ProviderMismatchException;
  34 import java.nio.file.SimpleFileVisitor;
  35 import java.nio.file.StandardCopyOption;
  36 import java.nio.file.attribute.BasicFileAttributes;
  37 import java.nio.file.spi.FileSystemProvider;
  38 import java.net.URI;
  39 import java.io.IOException;
  40 import java.util.Collections;
  41 import java.util.Map;
  42 import static java.nio.file.StandardWatchEventKinds.ENTRY_CREATE;
  43 /**
  44  * @test
  45  * @bug 8038500 8040059 8150366 8150496 8147539
  46  * @summary Basic test for zip provider
  47  *
  48  * @modules jdk.zipfs
  49  * @run main Basic
  50  * @run main/othervm/java.security.policy=test.policy Basic
  51  */
  52 
  53 public class Basic {
  54     public static void main(String[] args) throws Exception {
  55         // Test: zip should should be returned in provider list
  56         boolean found = false;
  57         for (FileSystemProvider provider: FileSystemProvider.installedProviders()) {
  58             if (provider.getScheme().equalsIgnoreCase("jar")) {
  59                 found = true;
  60                 break;
  61             }
  62         }
  63         if (!found)
  64             throw new RuntimeException("'jar' provider not installed");
  65 
  66         // create JAR file for test
  67         Path jarFile = Utils.createJarFile("basic.jar",
  68                 "META-INF/services/java.nio.file.spi.FileSystemProvider");
  69 
  70         // Test: FileSystems#newFileSystem(Path)
  71         Map<String,?> env = Collections.emptyMap();
  72         FileSystems.newFileSystem(jarFile, null).close();
  73 
  74         // Test: FileSystems#newFileSystem(URI)
  75         URI uri = new URI("jar", jarFile.toUri().toString(), null);
  76         FileSystem fs = FileSystems.newFileSystem(uri, env, null);
  77 
  78         // Test: exercise toUri method
  79         String expected = uri.toString() + "!/foo";
  80         String actual = fs.getPath("/foo").toUri().toString();
  81         if (!actual.equals(expected)) {
  82             throw new RuntimeException("toUri returned '" + actual +
  83                 "', expected '" + expected + "'");
  84         }
  85 
  86         // Test: exercise directory iterator and retrieval of basic attributes
  87         Files.walkFileTree(fs.getPath("/"), new FileTreePrinter());
  88 
  89         // Test: copy file from zip file to current (scratch) directory
  90         Path source = fs.getPath("/META-INF/services/java.nio.file.spi.FileSystemProvider");
  91         if (Files.exists(source)) {
  92             Path target = Paths.get(source.getFileName().toString());
  93             Files.copy(source, target, StandardCopyOption.REPLACE_EXISTING);
  94             try {
  95                 long s1 = Files.readAttributes(source, BasicFileAttributes.class).size();
  96                 long s2 = Files.readAttributes(target, BasicFileAttributes.class).size();
  97                 if (s2 != s1)
  98                     throw new RuntimeException("target size != source size");
  99             } finally {
 100                 Files.delete(target);
 101             }
 102         }
 103 
 104         // Test: FileStore
 105         FileStore store = Files.getFileStore(fs.getPath("/"));
 106         if (!store.supportsFileAttributeView("basic"))
 107             throw new RuntimeException("BasicFileAttributeView should be supported");
 108 
 109         // Test: watch register should throw PME
 110         try {
 111             fs.getPath("/")
 112               .register(FileSystems.getDefault().newWatchService(), ENTRY_CREATE);
 113             throw new RuntimeException("watch service is not supported");
 114         } catch (ProviderMismatchException x) { }
 115 
 116         // Test: ClosedFileSystemException
 117         fs.close();
 118         if (fs.isOpen())
 119             throw new RuntimeException("FileSystem should be closed");
 120         try {
 121             fs.provider().checkAccess(fs.getPath("/missing"), AccessMode.READ);
 122         } catch (ClosedFileSystemException x) { }
 123 
 124         Files.deleteIfExists(jarFile);
 125     }
 126 
 127     // FileVisitor that pretty prints a file tree
 128     static class FileTreePrinter extends SimpleFileVisitor<Path> {
 129         private int indent = 0;
 130 
 131         private void indent() {
 132             StringBuilder sb = new StringBuilder(indent);
 133             for (int i=0; i<indent; i++) sb.append(" ");
 134             System.out.print(sb);
 135         }
 136 
 137         @Override
 138         public FileVisitResult preVisitDirectory(Path dir,
 139                                                  BasicFileAttributes attrs)
 140         {
 141             if (dir.getFileName() != null) {
 142                 indent();
 143                 System.out.println(dir.getFileName() + "/");
 144                 indent++;
 145             }
 146             return FileVisitResult.CONTINUE;
 147         }
 148 
 149         @Override
 150         public FileVisitResult visitFile(Path file,
 151                                          BasicFileAttributes attrs)
 152         {
 153             indent();
 154             System.out.print(file.getFileName());
 155             if (attrs.isRegularFile())
 156                 System.out.format("%n%s%n", attrs);
 157 
 158             System.out.println();
 159             return FileVisitResult.CONTINUE;
 160         }
 161 
 162         @Override
 163         public FileVisitResult postVisitDirectory(Path dir, IOException exc)
 164             throws IOException
 165         {
 166             if (exc != null)
 167                 super.postVisitDirectory(dir, exc);
 168             if (dir.getFileName() != null)
 169                 indent--;
 170             return FileVisitResult.CONTINUE;
 171         }
 172     }
 173 }