1 /*

     2  * Copyright (c) 2009, 2014, 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 

    26 package jdk.nio.zipfs;

    27 

    28 import java.nio.file.attribute.*;

    29 import java.io.IOException;

    30 import java.util.LinkedHashMap;

    31 import java.util.Map;

    32 

    33 /*

    34  * @author  Xueming Shen, Rajendra Gutupalli, Jaya Hangal

    35  */

    36 

    37 class ZipFileAttributeView implements BasicFileAttributeView

    38 {

    39     private static enum AttrID {

    40         size,

    41         creationTime,

    42         lastAccessTime,

    43         lastModifiedTime,

    44         isDirectory,

    45         isRegularFile,

    46         isSymbolicLink,

    47         isOther,

    48         fileKey,

    49         compressedSize,

    50         crc,

    51         method

    52     };

    53 

    54     private final ZipPath path;

    55     private final boolean isZipView;

    56 

    57     private ZipFileAttributeView(ZipPath path, boolean isZipView) {

    58         this.path = path;

    59         this.isZipView = isZipView;

    60     }

    61 

    62     @SuppressWarnings("unchecked") // Cast to V

    63     static <V extends FileAttributeView> V get(ZipPath path, Class<V> type) {

    64         if (type == null)

    65             throw new NullPointerException();

    66         if (type == BasicFileAttributeView.class)

    67             return (V)new ZipFileAttributeView(path, false);

    68         if (type == ZipFileAttributeView.class)

    69             return (V)new ZipFileAttributeView(path, true);

    70         return null;

    71     }

    72 

    73     static ZipFileAttributeView get(ZipPath path, String type) {

    74         if (type == null)

    75             throw new NullPointerException();

    76         if (type.equals("basic"))

    77             return new ZipFileAttributeView(path, false);

    78         if (type.equals("zip"))

    79             return new ZipFileAttributeView(path, true);

    80         return null;

    81     }

    82 

    83     @Override

    84     public String name() {

    85         return isZipView ? "zip" : "basic";

    86     }

    87 

    88     public ZipFileAttributes readAttributes() throws IOException

    89     {

    90         return path.getAttributes();

    91     }

    92 

    93     @Override

    94     public void setTimes(FileTime lastModifiedTime,

    95                          FileTime lastAccessTime,

    96                          FileTime createTime)

    97         throws IOException

    98     {

    99         path.setTimes(lastModifiedTime, lastAccessTime, createTime);

   100     }

   101 

   102     void setAttribute(String attribute, Object value)

   103         throws IOException

   104     {

   105         try {

   106             if (AttrID.valueOf(attribute) == AttrID.lastModifiedTime)

   107                 setTimes ((FileTime)value, null, null);

   108             if (AttrID.valueOf(attribute) == AttrID.lastAccessTime)

   109                 setTimes (null, (FileTime)value, null);

   110             if (AttrID.valueOf(attribute) == AttrID.creationTime)

   111                 setTimes (null, null, (FileTime)value);

   112             return;

   113         } catch (IllegalArgumentException x) {}

   114         throw new UnsupportedOperationException("'" + attribute +

   115             "' is unknown or read-only attribute");

   116     }

   117 

   118     Map<String, Object> readAttributes(String attributes)

   119         throws IOException

   120     {

   121         ZipFileAttributes zfas = readAttributes();

   122         LinkedHashMap<String, Object> map = new LinkedHashMap<>();

   123         if ("*".equals(attributes)) {

   124             for (AttrID id : AttrID.values()) {

   125                 try {

   126                     map.put(id.name(), attribute(id, zfas));

   127                 } catch (IllegalArgumentException x) {}

   128             }

   129         } else {

   130             String[] as = attributes.split(",");

   131             for (String a : as) {

   132                 try {

   133                     map.put(a, attribute(AttrID.valueOf(a), zfas));

   134                 } catch (IllegalArgumentException x) {}

   135             }

   136         }

   137         return map;

   138     }

   139 

   140     Object attribute(AttrID id, ZipFileAttributes zfas) {

   141         switch (id) {

   142         case size:

   143             return zfas.size();

   144         case creationTime:

   145             return zfas.creationTime();

   146         case lastAccessTime:

   147             return zfas.lastAccessTime();

   148         case lastModifiedTime:

   149             return zfas.lastModifiedTime();

   150         case isDirectory:

   151             return zfas.isDirectory();

   152         case isRegularFile:

   153             return zfas.isRegularFile();

   154         case isSymbolicLink:

   155             return zfas.isSymbolicLink();

   156         case isOther:

   157             return zfas.isOther();

   158         case fileKey:

   159             return zfas.fileKey();

   160         case compressedSize:

   161             if (isZipView)

   162                 return zfas.compressedSize();

   163             break;

   164         case crc:

   165             if (isZipView)

   166                 return zfas.crc();

   167             break;

   168         case method:

   169             if (isZipView)

   170                 return zfas.method();

   171             break;

   172         }

   173         return null;

   174     }

   175 }