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1 package com.opensymphony.webwork.portlet.util;
2
3 import java.io.File  ;
4 import java.io.FileInputStream ;
5 import java.io.FileOutputStream ;
6 import java.io.IOException ;
7 import java.util.zip.ZipEntry ;
8 import java.util.zip.ZipOutputStream ;
9
10 public class FolderArchiver {
11 private static final int BUFFER_SIZE = 10240;
12
13 private File folderToArchive;
14
15 private File archiveFile;
16
17 public FolderArchiver(File folderToArchive, File archiveFile) {
18 this.folderToArchive = folderToArchive;
19 this.archiveFile = archiveFile;
20 }
21
22 public void doArchive() throws Exception {
23 FileOutputStream stream = new FileOutputStream (archiveFile);
24 ZipOutputStream output = new ZipOutputStream (stream);
25 compressFile(folderToArchive, output);
26 output.close();
27 stream.close();
28 }
29
30 private void compressFile(File file, ZipOutputStream output) throws IOException {
31 if (file == null || !file.exists())
32 return;
33 if (file.isFile() && !file.equals(archiveFile)) {
34 byte buffer[] = new byte[10240];
35 String path = file.getPath().substring(folderToArchive.getPath().length());
36 path = path.replaceAll("\\\\", "/");
37 if (path.length() > 0 && path.charAt(0) == '/')
38 path = path.substring(1);
39 ZipEntry entry = new ZipEntry (path);
40 entry.setTime(file.lastModified());
41 output.putNextEntry(entry);
42 FileInputStream in = new FileInputStream (file);
43 int data;
44 while ((data = in.read(buffer, 0, buffer.length)) > 0) output.write(buffer, 0, data);
45 in.close();
46 } else if (file.isDirectory()) {
47 File files[] = file.listFiles();
48 for (int i = 0; i < files.length; i++)
49 compressFile(files[i], output);
50
51 }
52 }
53
54 }
55
56 |
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