kona/src/org/gffs/network/URLDownloader.java

   1 package org.gffs.network;
   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.net.URL;
   9 import java.net.URLConnection;
  10
  11 import org.gffs.io.IOUtils;
  12
  13 public abstract class URLDownloader
  14 {
  15         static final private int CONNECTION_TIMEOUT = 1000 * 8;
  16         static final private int READ_TIMEOUT = 1000 * 8;
  17
  18         static public InputStream connect(URL url) throws IOException
  19         {
  20                 URLConnection connection = url.openConnection();
  21                 connection.setConnectTimeout(CONNECTION_TIMEOUT);
  22                 connection.setReadTimeout(READ_TIMEOUT);
  23                 connection.connect();
  24                 return connection.getInputStream();
  25         }
  26
  27         static public void download(URL source, File target) throws IOException
  28         {
  29                 InputStream in = null;
  30                 OutputStream out = null;
  31
  32                 try {
  33                         in = connect(source);
  34                         out = new FileOutputStream(target);
  35                         IOUtils.copy(in, out);
  36                 } finally {
  37                         IOUtils.close(in);
  38                         IOUtils.close(out);
  39                 }
  40         }
  41 }