pausableaverage.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   PausableAverage.java

package org.gudy.azureus2.core3.util;


// Referenced classes of package org.gudy.azureus2.core3.util:
//			Average, SystemTime

public class PausableAverage extends Average
{

	private long offset;
	private long pause_time;

	public static PausableAverage getPausableInstance(int refreshRate, int period)
	{
		if (refreshRate < 100)
			return null;
		if (period * 1000 < refreshRate)
			return null;
		else
			return new PausableAverage(refreshRate, period);
	}

	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 == 0L)
			pause_time = SystemTime.getCurrentTime();
	}

	public void resume()
	{
		if (pause_time != 0L)
		{
			long now = SystemTime.getCurrentTime();
			if (now > pause_time)
				offset += now - pause_time;
			pause_time = 0L;
		}
	}
}