1 // Fetch a URL.  Record the time.  Return a result object.
   2 
   3 import java.io.*;
   4 import java.net.*;
   5 
   6 public class Fetch {
   7    
   8    static final int	BUFFER_SIZE	= 8192;
   9 
  10    public Fetch() {
  11 
  12    }
  13 
  14    InputStream in = null;
  15 
  16    public FetchResult get(URL  url) {
  17 
  18       int     bytes	 = 1;
  19 	byte	  buf[] 	 = new byte[BUFFER_SIZE];
  20 	FetchResult result = new FetchResult();
  21     
  22       try {
  23  	   result.start(); 	
  24 	   
  25          URLConnection inHTTP = url.openConnection();
  26 
  27 	   inHTTP.setUseCaches (false);
  28          in = inHTTP.getInputStream();                 
  29 
  30 	   result.httpStatus = inHTTP.getHeaderField(0);
  31 
  32 	   if (result.httpStatus == null) result.httpStatus = new String ("NO VID");
  33 
  34 	   // Deplete the instream.
  35          while (bytes > 0) {
  36             bytes = in.read(buf);
  37 		result.size += bytes;
  38          }
  39          
  40 	   result.status = FetchResult.FR_OK;
  41 
  42       } catch (ConnectException e) {
  43 	   result.status = FetchResult.FR_CONNECT_FAILED;	   
  44 
  45       } catch (IOException e) {
  46 	   result.status = FetchResult.FR_READ_FAILED;	  
  47  
  48       } catch (Exception e) {
  49 	   result.status = FetchResult.FR_UNKNOWN_ERROR;
  50 
  51 	} finally {
  52 	   try  {
  53 		in.close();
  54 	   } catch (Exception e) { }
  55       }
  56             
  57 	result.end();
  58       return result;
  59 
  60    }
  61 
  62 }