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 }