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1 package com.sslexplorer.util;
2
3 import java.io.File  ;
4 import java.io.FileOutputStream ;
5 import java.io.IOException ;
6 import java.io.InputStream ;
7 import java.io.OutputStream ;
8 import java.util.zip.ZipEntry ;
9 import java.util.zip.ZipInputStream ;
10
11 import com.sslexplorer.boot.Util;
12
13
14 public class ZipExtract {
15
16 public static final void copyInputStream(InputStream in, OutputStream out)
17 throws IOException
18 {
19 byte[] buffer = new byte[1024];
20 int len;
21
22 while((len = in.read(buffer)) >= 0)
23 out.write(buffer, 0, len);
24
25 in.close();
26 out.close();
27 }
28
29
30 public static final void extractZipFile(File basedir, InputStream in) throws IOException {
31 extractZipFile(basedir, in, true);
32 }
33
34 public static final void extractZipFile(File basedir, InputStream in, boolean onlyIfNewer) throws IOException {
35
36 ZipInputStream zin = new ZipInputStream (in);
37 try {
38
39
40 ZipEntry entry;
41 byte[] buf = new byte[32768];
42 int read;
43 do {
44 entry = zin.getNextEntry();
45
46 if(entry==null)
47 break;
48
49 File f = new File (basedir, entry.getName());
50
51 if(entry.isDirectory()) {
52 f.mkdirs();
53 zin.closeEntry();
54 if(entry.getTime() != -1) {
55 f.setLastModified(entry.getTime());
56 }
57 continue;
58 }
59
60 if(onlyIfNewer && entry.getTime() != -1 && entry.getTime() == f.lastModified()) {
61 continue;
62 }
63
64 f.getParentFile().mkdirs();
65 FileOutputStream out = new FileOutputStream (f);
66
67 try {
68 while((read = zin.read(buf, 0, buf.length)) > -1) {
69 out.write(buf, 0, read);
70 }
71
72 zin.closeEntry();
73
74 } finally {
75 Util.closeStream(out);
76 }
77 if(entry.getTime() != -1) {
78 f.setLastModified(entry.getTime());
79 }
80
81 } while(entry!=null);
82
83 } finally {
84 Util.closeStream(zin);
85 }
86 }
87
88 }
89
90 |
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