/*
* Created on 14-Feb-2005
* Created by Paul Gardner
* Copyright (C) 2004, 2005, 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 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package org.gudy.azureus2.core3.tracker.client.impl.dht;
import java.util.*;
import java.net.URL;
import org.gudy.azureus2.core3.internat.MessageText;
import org.gudy.azureus2.core3.torrent.TOTorrent;
import org.gudy.azureus2.core3.torrent.TOTorrentException;
import org.gudy.azureus2.core3.tracker.client.TRTrackerAnnouncer;
import org.gudy.azureus2.core3.tracker.client.TRTrackerScraperClientResolver;
import org.gudy.azureus2.core3.tracker.client.TRTrackerScraperResponse;
import org.gudy.azureus2.core3.tracker.client.impl.TRTrackerScraperImpl;
import org.gudy.azureus2.core3.util.AEMonitor;
import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.core3.util.HashWrapper;
import org.gudy.azureus2.core3.util.SystemTime;
import org.gudy.azureus2.plugins.download.DownloadScrapeResult;
/**
* @author parg
*
*/
public class
TRTrackerDHTScraperImpl
{
protected static TRTrackerDHTScraperImpl singleton;
protected static AEMonitor class_mon = new AEMonitor( "TRTrackerDHTScraper" );
private TRTrackerScraperImpl scraper;
private Map<HashWrapper,TRTrackerDHTScraperResponseImpl> responses = new HashMap<HashWrapper,TRTrackerDHTScraperResponseImpl>();
public static TRTrackerDHTScraperImpl
create(
TRTrackerScraperImpl _scraper )
{
try{
class_mon.enter();
if ( singleton == null ){
singleton = new TRTrackerDHTScraperImpl( _scraper );
}
return( singleton );
}finally{
class_mon.exit();
}
}
protected
TRTrackerDHTScraperImpl(
TRTrackerScraperImpl _scraper )
{
scraper = _scraper;
}
public void
setScrape(
TOTorrent torrent,
URL url,
DownloadScrapeResult result )
{
if ( torrent != null && result != null){
try{
TRTrackerDHTScraperResponseImpl resp =
new TRTrackerDHTScraperResponseImpl( torrent.getHashWrapper(), result.getURL());
resp.setSeedsPeers( result.getSeedCount(), result.getNonSeedCount());
resp.setScrapeStartTime( result.getScrapeStartTime());
resp.setNextScrapeStartTime( result.getNextScrapeStartTime());
resp.setStatus(
result.getResponseType()==DownloadScrapeResult.RT_SUCCESS?
TRTrackerScraperResponse.ST_ONLINE:
TRTrackerScraperResponse.ST_ERROR,
result.getStatus());
responses.put( torrent.getHashWrapper(), resp );
scraper.scrapeReceived( resp );
}catch( TOTorrentException e ){
Debug.printStackTrace(e);
}
}
}
public TRTrackerScraperResponse
scrape(
TOTorrent torrent,
URL unused_target_url,
boolean unused_force )
{
if ( torrent != null ){
try{
HashWrapper hw = torrent.getHashWrapper();
TRTrackerDHTScraperResponseImpl response = responses.get( hw );
if ( response == null ){
TRTrackerScraperClientResolver resolver = scraper.getClientResolver();
if ( resolver != null ){
int[] cache = resolver.getCachedScrape( hw );
if ( cache != null ){
response =
new TRTrackerDHTScraperResponseImpl(
hw, torrent.getAnnounceURL());
response.setSeedsPeers( cache[0], cache[1] );
long now = SystemTime.getCurrentTime();
response.setScrapeStartTime( now );
response.setNextScrapeStartTime( now + 5*60*1000 );
response.setStatus(
TRTrackerScraperResponse.ST_ONLINE,
MessageText.getString( "Scrape.status.cached" ));
responses.put( torrent.getHashWrapper(), response );
scraper.scrapeReceived( response );
}
}
}
return( response );
}catch( TOTorrentException e ){
Debug.printStackTrace(e);
}
}
return( null );
}
public TRTrackerScraperResponse
peekScrape(
TOTorrent torrent,
URL unused_target_url )
{
if ( torrent != null ){
try{
HashWrapper hw = torrent.getHashWrapper();
return( responses.get( hw ));
}catch( TOTorrentException e ){
Debug.printStackTrace(e);
}
}
return( null );
}
public TRTrackerScraperResponse
scrape(
TRTrackerAnnouncer tracker_client )
{
return( scrape( tracker_client.getTorrent(), null, false ));
}
public void
remove(
TOTorrent torrent )
{
try{
responses.remove( torrent.getHashWrapper());
}catch( TOTorrentException e ){
Debug.printStackTrace(e);
}
}
}