seedtopeerratioitem.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:   SeedToPeerRatioItem.java

package org.gudy.azureus2.ui.swt.views.tableitems.mytorrents;

import org.gudy.azureus2.core3.download.DownloadManager;
import org.gudy.azureus2.core3.tracker.client.TRTrackerScraperResponse;
import org.gudy.azureus2.core3.util.DisplayFormatters;
import org.gudy.azureus2.plugins.download.Download;
import org.gudy.azureus2.plugins.ui.tables.*;
import org.gudy.azureus2.ui.swt.views.table.utils.CoreTableColumn;

public class SeedToPeerRatioItem extends CoreTableColumn
	implements TableCellRefreshListener
{

	public static final Class DATASOURCE_TYPE = org/gudy/azureus2/plugins/download/Download;
	public static final String COLUMN_ID = "seed_to_peer_ratio";

	public SeedToPeerRatioItem(String sTableID)
	{
		super(DATASOURCE_TYPE, "seed_to_peer_ratio", 2, 70, sTableID);
		setRefreshInterval(-2);
		setMinWidthAuto(true);
	}

	public void fillTableColumnInfo(TableColumnInfo info)
	{
		info.addCategories(new String[] {
			"swarm"
		});
		info.setProficiency((byte)2);
	}

	public void refresh(TableCell cell)
	{
		float ratio = -1F;
		DownloadManager dm = (DownloadManager)cell.getDataSource();
		if (dm != null)
		{
			TRTrackerScraperResponse response = dm.getTrackerScrapeResponse();
			int seeds;
			int peers;
			if (response != null && response.isValid())
			{
				seeds = Math.max(dm.getNbSeeds(), response.getSeeds());
				int trackerPeerCount = response.getPeers();
				peers = dm.getNbPeers();
				if (peers == 0 || trackerPeerCount > peers)
					if (trackerPeerCount <= 0)
						peers = dm.getActivationCount();
					else
						peers = trackerPeerCount;
			} else
			{
				seeds = dm.getNbSeeds();
				peers = dm.getNbPeers();
			}
			if (peers < 0 || seeds < 0)
				ratio = 0.0F;
			else
			if (peers == 0)
			{
				if (seeds == 0)
					ratio = 0.0F;
				else
					ratio = (1.0F / 0.0F);
			} else
			{
				ratio = (float)seeds / (float)peers;
			}
		}
		if (!cell.setSortValue(ratio) && cell.isValid())
			return;
		if (ratio == -1F)
			cell.setText("");
		else
		if (ratio == 0.0F)
			cell.setText("??");
		else
			cell.setText(DisplayFormatters.formatDecimal(ratio, 3));
	}

}