/*
* Created on 22 juin 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 com.aelitis.azureus.core.dht.netcoords.vivaldi.ver1.impl.tests;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.gudy.azureus2.ui.swt.views.stats.VivaldiPanel;
import com.aelitis.azureus.core.dht.netcoords.vivaldi.ver1.*;
import com.aelitis.azureus.core.dht.netcoords.vivaldi.ver1.impl.*;
public class VivaldiVisualTest {
private static final int MAX_HEIGHT = 20;
private static final int ELEMENTS_X = 20;
private static final int ELEMENTS_Y = 20;
private static final int DISTANCE = 50;
private static final int MAX_ITERATIONS = 10000;
private static final int NB_CONTACTS = 5;
public VivaldiVisualTest() {}
public void
start()
{
final Display display = new Display();
Shell shell = new Shell(display);
final VivaldiPanel panel = new VivaldiPanel(shell);
shell.setLayout(new FillLayout());
shell.setSize(800,800);
shell.setText("Vivaldi Simulator");
shell.open();
Thread runner = new Thread("Viviladi Simulator") {
public void run() {
VivaldiPosition positions[][] = new VivaldiPosition[ELEMENTS_X][ELEMENTS_Y];
final List<VivaldiPosition> lPos = new ArrayList<VivaldiPosition>(ELEMENTS_X*ELEMENTS_Y);
HeightCoordinatesImpl realCoordinates[][] = new HeightCoordinatesImpl[ELEMENTS_X][ELEMENTS_Y];
//Init all
for(int i = 0 ; i < ELEMENTS_X ; i++) {
for(int j = 0 ; j < ELEMENTS_Y ; j++) {
realCoordinates[i][j] = new HeightCoordinatesImpl(i*DISTANCE-ELEMENTS_X * DISTANCE/2,j*DISTANCE-ELEMENTS_Y*DISTANCE/2,MAX_HEIGHT);
if(i >= ELEMENTS_X / 2 && 1 == 0) {
positions[i][j] = new VivaldiPositionImpl(realCoordinates[i][j]);
positions[i][j].setErrorEstimate(0.01f);
} else {
positions[i][j] = new VivaldiPositionImpl(new HeightCoordinatesImpl(1000+DISTANCE*i,1000+DISTANCE*j,20));
}
lPos.add(positions[i][j]);
}
}
//Main loop
for(int iter = 0 ; iter < MAX_ITERATIONS ; iter++) {
if(iter%100 == 0) System.out.println(iter);
if(display.isDisposed()) return;
display.syncExec( new Runnable() {
public void run() {
panel.refresh(lPos);
}
});
try {
//Thread.sleep(100);
} catch (Exception e) {
// TODO: handle exception
}
//For each node :
for(int i = 0 ; i < ELEMENTS_X ; i++) {
for(int j = 0 ; j < ELEMENTS_Y ; j++) {
VivaldiPosition position = positions[i][j];
//Pick N random nodes
for(int k = 0 ; k < NB_CONTACTS ; k++) {
int i1 = (int) (Math.random() * ELEMENTS_X);
int j1 = (int) (Math.random() * ELEMENTS_Y);
if(i1 == i && j1 ==j) continue;
VivaldiPosition position1 = positions[i1][j1];
float rtt = realCoordinates[i1][j1].distance(realCoordinates[i][j]);
//rtt *= (Math.random() - 0.5)/20 + 1;
position.update(rtt,position1.getCoordinates(),position1.getErrorEstimate());
}
}
}
}
}
};
runner.setDaemon(true);
runner.start();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ()) display.sleep ();
}
display.dispose ();
}
public static void main(String args[]) {
new VivaldiVisualTest().start();
}
}