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Java > Open Source Codes > proguard > io > ZipDataEntry


1 /*
2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
3  * of Java bytecode.
4  *
5  * Copyright (c) 2002-2007 Eric Lafortune (eric@graphics.cornell.edu)
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License as published by the Free
9  * Software Foundation; either version 2 of the License, or (at your option)
10  * any later version.
11  *
12  * This program is distributed in the hope that it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15  * more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with this program; if not, write to the Free Software Foundation, Inc.,
19  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  */
21 package proguard.io;
22
23 import java.io.*;
24 import java.util.zip.*;
25
26 import proguard.classfile.ClassConstants;
27
28 /**
29  * This <code>DataEntry</code> represents a ZIP entry.
30  *
31  * @author Eric Lafortune
32  */
33 public class ZipDataEntry implements DataEntry
34 {
35     private DataEntry parent;
36     private ZipEntry zipEntry;
37     private ZipInputStream zipInputStream;
38
39
40     public ZipDataEntry(DataEntry parent,
41                         ZipEntry zipEntry,
42                         ZipInputStream zipInputStream)
43     {
44         this.parent = parent;
45         this.zipEntry = zipEntry;
46         this.zipInputStream = zipInputStream;
47     }
48
49
50     // Implementations for DataEntry.
51
52     public String JavaDoc getName()
53     {
54         // Chop the directory name from the file name and get the right separators.
55 return zipEntry.getName()
56             .replace(File.separatorChar, ClassConstants.INTERNAL_PACKAGE_SEPARATOR);
57     }
58
59
60     public InputStream getInputStream() throws IOException
61     {
62         return zipInputStream;
63     }
64
65
66     public void closeInputStream() throws IOException
67     {
68         zipInputStream.closeEntry();
69         zipInputStream = null;
70     }
71
72
73     public DataEntry getParent()
74     {
75         return parent;
76     }
77
78
79     // Implementations for Object.
80
81     public String JavaDoc toString()
82     {
83         return parent.toString() + ':' + getName();
84     }
85 }
86
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