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Java > Open Source Codes > net > javacoding > jspider > tool > impl > DownloadTool


1 package net.javacoding.jspider.tool.impl;
2
3 import net.javacoding.jspider.api.event.JSpiderEvent;
4 import net.javacoding.jspider.api.event.resource.ResourceFetchedEvent;
5
6 import java.io.*;
7
8 /**
9  * $Id: DownloadTool.java,v 1.3 2003/04/01 19:44:42 vanrogu Exp $
10  */
11 public class DownloadTool extends BaseToolImpl {
12
13     public String JavaDoc getName() {
14         return "download";
15     }
16
17     public String JavaDoc getUsage() {
18         return "[filename]";
19     }
20
21     public int getParameterCount() {
22         return 1;
23     }
24
25     public void notify(JSpiderEvent event) {
26
27         String JavaDoc fileName = parameters.getValues()[0];
28
29         if ( event instanceof ResourceFetchedEvent ) {
30             ResourceFetchedEvent rfe = (ResourceFetchedEvent) event;
31             int counter = 0;
32             try {
33                 InputStream is = rfe.getResource().getInputStream();
34                 OutputStream os = new FileOutputStream(fileName);
35                 int read = is.read();
36                 while ( read != -1 ) {
37                     counter++;
38                     os.write(read);
39                     read = is.read ( );
40                 }
41                 os.flush();
42                 os.close();
43                 is.close();
44                 System.out.println("Downloaded resource to '" + fileName + "' (" + counter + " bytes)" );
45             } catch (IOException e) {
46                 e.printStackTrace();
47             }
48         }
49     }
50
51 }
52
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