scripting/workben/installer/ZipData.java

   1 package installer;
   2
   3 import java.io.*;
   4 import java.util.*;
   5 import java.util.zip.*;
   6 import java.awt.*;
   7 import java.awt.event.*;
   8 import javax.swing.*;
   9
  10 public class ZipData
  11 {
  12     public ZipData(String file) {
  13     }
  14
  15     public boolean extractEntry(String entry, String destination,
  16         JLabel statusLabel) {
  17
  18         OutputStream out = null;
  19         InputStream in = null;
  20
  21         System.out.println("Copying: " + entry);
  22         System.out.println("To: " + destination);
  23
  24     if (statusLabel != null) {
  25         statusLabel.setText("Copying " + entry);
  26     }
  27
  28         String entryName;
  29         if (entry.lastIndexOf("/") != -1) {
  30             entryName = entry.substring(entry.lastIndexOf("/") + 1);
  31         }
  32         else {
  33             entryName = entry;
  34         }
  35
  36         String destName;
  37         if (destination.lastIndexOf(File.separator) != -1) {
  38             destName = destination.substring(destination.lastIndexOf(File.separator) + 1);
  39         }
  40         else {
  41             destName = destination;
  42         }
  43
  44         if (!destName.equals(entryName))
  45             destination = destination.concat(entryName);
  46
  47         System.out.println("Unzipping " + entry + " to " + destination);
  48
  49     try {
  50             out = new FileOutputStream(destination);
  51         }
  52         catch (IOException ioe) {
  53             System.err.println("Error opening " + destination +
  54                 ": " + ioe.getMessage());
  55
  56             if (statusLabel != null)
  57                 statusLabel.setText("Error opening" + destination +
  58                     "see SFramework.log for more information");
  59
  60             return false;
  61         }
  62
  63         if (entry.startsWith("/") == false)
  64             entry = "/" + entry;
  65
  66         in = this.getClass().getResourceAsStream(entry);
  67         if (in == null) {
  68             System.err.println("File " + entry + " not found in jar file");
  69
  70             if (statusLabel != null)
  71                 statusLabel.setText("Failed extracting " + entry +
  72                     "see SFramework.log for more information");
  73
  74             return false;
  75         }
  76
  77         try {
  78             byte[] bytes = new byte[1024];
  79             int len;
  80
  81             while ((len = in.read(bytes)) != -1)
  82                 out.write(bytes, 0, len);
  83         }
  84         catch (IOException ioe) {
  85             System.err.println("Error writing " + destination + ": " +
  86                 ioe.getMessage());
  87
  88             if (statusLabel != null)
  89                 statusLabel.setText("Failed writing " + destination +
  90                     "see SFramework.log for more information");
  91             return false;
  92         }
  93         finally {
  94             try {
  95                 in.close();
  96                 out.close();
  97             }
  98             catch (IOException ioe) {
  99             }
 100         }
 101         return true;
 102     }
 103 }