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 }