01: /*
02: * ProGuard -- shrinking, optimization, obfuscation, and preverification
03: * of Java bytecode.
04: *
05: * Copyright (c) 2002-2007 Eric Lafortune (eric@graphics.cornell.edu)
06: *
07: * This program is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU General Public License as published by the Free
09: * 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: private final File directory;
34: private final File file;
35: private InputStream inputStream;
36:
37: public FileDataEntry(File directory, File file) {
38: this .directory = directory;
39: this .file = file;
40: }
41:
42: // Implementations for DataEntry.
43:
44: public String getName() {
45: // Chop the directory name from the file name and get the right separators.
46: return file.equals(directory) ? file.getName() : file.getPath()
47: .substring(
48: directory.getPath().length()
49: + File.separator.length()).replace(
50: File.separatorChar,
51: ClassConstants.INTERNAL_PACKAGE_SEPARATOR);
52: }
53:
54: // Implementations for InputEntry.
55:
56: public InputStream getInputStream() throws IOException {
57: if (inputStream == null) {
58: inputStream = new BufferedInputStream(new FileInputStream(
59: file));
60: }
61:
62: return inputStream;
63: }
64:
65: public void closeInputStream() throws IOException {
66: inputStream.close();
67: inputStream = null;
68: }
69:
70: public DataEntry getParent() {
71: return null;
72: }
73:
74: // Implementations for Object.
75:
76: public String toString() {
77: return getName();
78: }
79: }
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