| 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
27 import java.io.BufferedInputStream;
28 import java.io.BufferedOutputStream;
29 import java.io.ByteArrayInputStream;
30 import java.io.IOException;
31 import java.io.Serializable;
32
33 import java.util.zip.ZipEntry;
34 import java.util.zip.ZipOutputStream;
35
36 /**
37 * <a href="ZipWriter.java.html"><b><i>View Source</i></b></a>
38 *
39 * @author Brian Wing Shun Chan
40 *
41 */
42 public class ZipWriter implements Serializable {
43
44 public ZipWriter() {
45 _bam = new ByteArrayMaker();
46 _zos = new ZipOutputStream(new BufferedOutputStream(_bam));
47 }
48
49 public void addEntry(String name, StringBuilder sb) throws IOException {
50 addEntry(name, sb.toString());
51 }
52
53 public void addEntry(String name, String s) throws IOException {
54 addEntry(name, s.getBytes());
55 }
56
57 public void addEntry(String name, byte[] bytes) throws IOException {
58 ZipEntry entry = new ZipEntry(name);
59
60 _zos.putNextEntry(entry);
61
62 BufferedInputStream bis = new BufferedInputStream(
63 new ByteArrayInputStream(bytes), _BUFFER);
64
65 int count;
66
67 while ((count = bis.read(_data, 0, _BUFFER)) != -1) {
68 _zos.write(_data, 0, count);
69 }
70
71 bis.close();
72 }
73
74 public byte[] finish() throws IOException {
75 _zos.close();
76
77 return _bam.toByteArray();
78 }
79
80 private static final int _BUFFER = 2048;
81
82 private ByteArrayMaker _bam;
83 private ZipOutputStream _zos;
84 private byte[] _data = new byte[_BUFFER];
85
86 }