/*
* Created on 19-Sep-2006
* Created by Paul Gardner
* Copyright (C) 2006 Aelitis, 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, or (at your option) any later version.
* 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.
* 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 63.529,40 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package org.gudy.azureus2.core3.util;
public class
PausableAverage
extends Average
{
public static PausableAverage
getPausableInstance(
int refreshRate,
int period )
{
if ( refreshRate < 100 ){
return null;
}
if (( period * 1000 ) < refreshRate ){
return null;
}
return new PausableAverage(refreshRate, period);
}
private long offset;
private long pause_time;
private
PausableAverage(
int _refreshRate,
int _period )
{
super( _refreshRate, _period );
}
public void
addValue(
long value )
{
super.addValue( value );
}
public long
getAverage()
{
long average = super.getAverage();
return( average );
}
protected long
getEffectiveTime()
{
return( SystemTime.getCurrentTime() - offset );
}
public void
pause()
{
if ( pause_time == 0 ){
pause_time = SystemTime.getCurrentTime();
}
}
public void
resume()
{
if ( pause_time != 0 ){
long now = SystemTime.getCurrentTime();
if ( now > pause_time ){
offset += now - pause_time;
}
pause_time = 0;
}
}
}