| ZipWriter.java |
1 /**
2 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.kernel.zip;
24
25 import com.liferay.portal.kernel.util.ByteArrayMaker;
26 import com.liferay.portal.kernel.util.StringPool;
27
28 import java.io.BufferedInputStream;
29 import java.io.BufferedOutputStream;
30 import java.io.ByteArrayInputStream;
31 import java.io.IOException;
32 import java.io.Serializable;
33
34 import java.util.zip.ZipEntry;
35 import java.util.zip.ZipOutputStream;
36
37 /**
38 * <a href="ZipWriter.java.html"><b><i>View Source</i></b></a>
39 *
40 * @author Brian Wing Shun Chan
41 *
42 */
43 public class ZipWriter implements Serializable {
44
45 public ZipWriter() {
46 _bam = new ByteArrayMaker();
47 _zos = new ZipOutputStream(new BufferedOutputStream(_bam));
48 }
49
50 public void addEntry(String name, StringBuilder sb) throws IOException {
51 addEntry(name, sb.toString());
52 }
53
54 public void addEntry(String name, String s) throws IOException {
55 addEntry(name, s.getBytes());
56 }
57
58 public void addEntry(String name, byte[] bytes) throws IOException {
59 if (name.startsWith(StringPool.SLASH)) {
60 name = name.substring(1);
61 }
62
63 ZipEntry entry = new ZipEntry(name);
64
65 _zos.putNextEntry(entry);
66
67 BufferedInputStream bis = new BufferedInputStream(
68 new ByteArrayInputStream(bytes), _BUFFER);
69
70 int count;
71
72 while ((count = bis.read(_data, 0, _BUFFER)) != -1) {
73 _zos.write(_data, 0, count);
74 }
75
76 bis.close();
77 }
78
79 public byte[] finish() throws IOException {
80 _zos.close();
81
82 return _bam.toByteArray();
83 }
84
85 private static final int _BUFFER = 2048;
86
87 private ByteArrayMaker _bam;
88 private ZipOutputStream _zos;
89 private byte[] _data = new byte[_BUFFER];
90
91 }