Package org.gudy.azureus2.core3.tracker.client.impl.bt

Source Code of org.gudy.azureus2.core3.tracker.client.impl.bt.TrackerLoadTester

/*
* Created on 1 f�vr. 2005
* Created by Olivier Chalouhi
*
* Copyright (C) 2004, 2005, 2006 Aelitis SAS, All rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details ( see the LICENSE file ).
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*
* AELITIS, SAS au capital de 46,603.30 euros,
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*/
package org.gudy.azureus2.core3.tracker.client.impl.bt;

import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import org.gudy.azureus2.core3.util.Constants;

/**
* @author Olivier Chalouhi
*
*/
public class TrackerLoadTester {
 
  private static final String trackerUrl = "http://localhost:6969/announce";
 
  public TrackerLoadTester(int nbTorrents,int nbClientsPerTorrent) {
    for(int i = 0 ; i < nbTorrents ; i++) {
      byte[] hash = generate20BytesHash(i);
      //System.out.println("Adding torrent " + hash);
      for(int j = 0 ; j < nbClientsPerTorrent ; j++) {
        byte[] peerId = generate20BytesHash(j);
        announce(trackerUrl,hash,peerId,6881+j);
      }
    }
  }
    
  public static void main(String args[]) {
    if(args.length < 2) return;
    int nbTorrents = Integer.parseInt(args[0]);
    int nbClientsPerTorrent = Integer.parseInt(args[1]);
    new TrackerLoadTester(nbTorrents,nbClientsPerTorrent);
  }
 
  private void announce(String trackerURL,byte[] hash,byte[] peerId,int port) {
    try {
      String strUrl = trackerURL
        + "?info_hash=" + URLEncoder.encode(new String(hash, Constants.BYTE_ENCODING), Constants.BYTE_ENCODING).replaceAll("\\+", "%20")
        + "&peer_id="   + URLEncoder.encode(new String(peerId, Constants.BYTE_ENCODING), Constants.BYTE_ENCODING).replaceAll("\\+", "%20")
        + "&port=" + port
        + "&uploaded=0&downloaded=0&left=0&numwant=50&no_peer_id=1&compact=1";
      //System.out.println(strUrl);
      URL url = new URL(strUrl);
      URLConnection con = url.openConnection();
      con.connect();
      con.getContent();
    } catch(Exception e) {
      e.printStackTrace();
    }   
  }
 
  private byte[] generate20BytesHash(int iter) {
    byte[] result = new byte[20];
    int pos = 0;
    while(iter > 0) {
      result[pos++] = (byte) (iter % 255);    
      iter = iter / 255;
    }
    return result;
  }
 
}
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