1 /* 2 * Copyright (c) 2008, 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 /* 25 * @test 26 * @bug 4313887 27 * @summary Unit test for DELETE_ON_CLOSE open option 28 * @library /test/lib /java/nio/file 29 */ 30 31 import java.io.IOException; 32 import java.nio.file.DirectoryStream; 33 import java.nio.file.Files; 34 import java.nio.file.OpenOption; 35 import java.nio.file.Path; 36 import java.nio.file.Paths; 37 import java.nio.file.SecureDirectoryStream; 38 import java.util.HashSet; 39 import java.util.Set; 40 41 import jdk.test.lib.process.ProcessTools; 42 43 import static java.nio.file.StandardOpenOption.READ; 44 import static java.nio.file.StandardOpenOption.WRITE; 45 import static java.nio.file.StandardOpenOption.DELETE_ON_CLOSE; 46 47 public class DeleteOnClose { 48 49 public static void main(String[] args) throws Exception { 50 if (args.length == 0) { 51 Path file = Files.createTempFile("blah", "tmp"); 52 ProcessTools.executeTestJava(DeleteOnClose.class.getName(), 53 file.toAbsolutePath().toString()) 54 .shouldHaveExitValue(0); 55 runTest(file); 56 } else { 57 // open file but do not close it. Its existance will be checked by 58 // the caller. 59 Files.newByteChannel(Paths.get(args[0]), READ, WRITE, DELETE_ON_CLOSE); 60 } 61 } 62 63 public static void runTest(Path path) throws Exception { 64 // check temporary file has been deleted after jvm termination 65 if (Files.exists(path)) { 66 throw new RuntimeException("Temporary file was not deleted"); 67 } 68 69 // check temporary file has been deleted after closing it 70 Path file = Files.createTempFile("blep", "tmp"); 71 Files.newByteChannel(file, READ, WRITE, DELETE_ON_CLOSE).close(); 72 if (Files.exists(file)) 73 throw new RuntimeException("Temporary file was not deleted"); 74 75 Path dir = Files.createTempDirectory("blah"); 76 try { 77 // check that DELETE_ON_CLOSE fails when file is a sym link 78 if (TestUtil.supportsLinks(dir)) { 79 file = dir.resolve("foo"); 80 Files.createFile(file); 81 Path link = dir.resolve("link"); 82 Files.createSymbolicLink(link, file); 83 try { 84 Files.newByteChannel(link, READ, WRITE, DELETE_ON_CLOSE); 85 throw new RuntimeException("IOException expected"); 86 } catch (IOException ignore) { } 87 } 88 89 // check that DELETE_ON_CLOSE works with files created via open 90 // directories 91 try (DirectoryStream<Path> stream = Files.newDirectoryStream(dir)) { 92 if (stream instanceof SecureDirectoryStream) { 93 SecureDirectoryStream<Path> secure = (SecureDirectoryStream<Path>)stream; 94 file = Paths.get("foo"); 95 96 Set<OpenOption> opts = new HashSet<>(); 97 opts.add(WRITE); 98 opts.add(DELETE_ON_CLOSE); 99 secure.newByteChannel(file, opts).close(); 100 101 if (Files.exists(dir.resolve(file))) 102 throw new RuntimeException("File not deleted"); 103 } 104 } 105 } finally { 106 TestUtil.removeAll(dir); 107 } 108 } 109 }