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1 /*
2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
3  *             of Java bytecode.
4  *
5  * Copyright (c) 2002-2014 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 proguard.classfile.ClassConstants;
24 
25 import java.io.*;
26 
27 /**
28  * This <code>DataEntry</code> represents a file.
29  *
30  * @author Eric Lafortune
31  */
32 public class FileDataEntry implements DataEntry
33 {
34     private final File        directory;
35     private final File        file;
36     private       InputStream inputStream;
37 
38 
FileDataEntry(File directory, File file)39     public FileDataEntry(File directory,
40                          File file)
41     {
42         this.directory = directory;
43         this.file      = file;
44     }
45 
46 
47     // Implementations for DataEntry.
48 
getName()49     public String getName()
50     {
51         // Chop the directory name from the file name and get the right separators.
52         return file.equals(directory) ?
53             file.getName() :
54             file.getPath()
55             .substring(directory.getPath().length() + File.separator.length())
56             .replace(File.separatorChar, ClassConstants.PACKAGE_SEPARATOR);
57     }
58 
59 
isDirectory()60     public boolean isDirectory()
61     {
62         return file.isDirectory();
63     }
64 
65 
getInputStream()66     public InputStream getInputStream() throws IOException
67     {
68         if (inputStream == null)
69         {
70             inputStream = new BufferedInputStream(new FileInputStream(file));
71         }
72 
73         return inputStream;
74     }
75 
76 
closeInputStream()77     public void closeInputStream() throws IOException
78     {
79         inputStream.close();
80         inputStream = null;
81     }
82 
83 
getParent()84     public DataEntry getParent()
85     {
86         return null;
87     }
88 
89 
90     // Implementations for Object.
91 
toString()92     public String toString()
93     {
94         return getName();
95     }
96 }
97