1 /* 2 * Copyright (c) 2015, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package jdk.internal.jrtfs; 26 27 import java.io.IOException; 28 import java.nio.file.attribute.BasicFileAttributes; 29 import java.nio.file.attribute.FileTime; 30 import jdk.internal.jrtfs.JrtExplodedFileSystem.Node; 31 32 /** 33 * jrt file system attributes implementation on top of 'exploded file system' 34 * Node. 35 * 36 * @implNote This class needs to maintain JDK 8 source compatibility. 37 * 38 * It is used internally in the JDK to implement jimage/jrtfs access, 39 * but also compiled and delivered as part of the jrtfs.jar to support access 40 * to the jimage file provided by the shipped JDK by tools running on JDK 8. 41 */ 42 final class JrtExplodedFileAttributes extends AbstractJrtFileAttributes { 43 44 private final Node node; 45 private final BasicFileAttributes attrs; 46 47 JrtExplodedFileAttributes(Node node) throws IOException { 48 this.node = node; 49 this.attrs = node.getBasicAttrs(); 50 } 51 52 @Override 53 public FileTime creationTime() { 54 return attrs.creationTime(); 55 } 56 57 @Override 58 public boolean isDirectory() { 59 return node.isDirectory(); 60 } 61 62 @Override 63 public boolean isOther() { 64 return false; 65 } 66 67 @Override 68 public boolean isRegularFile() { 69 return node.isFile(); 70 } 71 72 @Override 73 public FileTime lastAccessTime() { 74 return attrs.lastAccessTime(); 75 } 76 77 @Override 78 public FileTime lastModifiedTime() { 79 return attrs.lastModifiedTime(); 80 } 81 82 @Override 83 public long size() { 84 return isRegularFile() ? attrs.size() : 0L; 85 } 86 87 @Override 88 public boolean isSymbolicLink() { 89 return node.isLink(); 90 } 91 92 @Override 93 public Object fileKey() { 94 return node.resolveLink(true); 95 } 96 97 @Override 98 public long compressedSize() { 99 return 0L; 100 } 101 102 @Override 103 public String extension() { 104 return node.getExtension(); 105 } 106 }