/*
* Created on 18-Jan-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 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package com.aelitis.azureus.core.networkmanager.impl;
import java.util.*;
import org.gudy.azureus2.core3.logging.*;
import org.gudy.azureus2.core3.util.*;
public abstract class
ProtocolDecoder
{
private static final LogIDs LOGID = LogIDs.NWMAN;
private static final int TIMEOUT_CHECK = 5000;
private static final int LOG_TICKS = 60000 / TIMEOUT_CHECK;
private static List<ProtocolDecoder> decoders = new ArrayList<ProtocolDecoder>();
private static AEMonitor class_mon = new AEMonitor( "TCPProtocolDecoder:class" );
private static int loop = 0;
static{
SimpleTimer.addPeriodicEvent(
"ProtocolDecoder:timeouts",
5000,
new TimerEventPerformer()
{
public void perform( TimerEvent ev )
{
loop++;
List<ProtocolDecoder> copy;
try{
class_mon.enter();
if ( loop % LOG_TICKS == 0 ){
if (Logger.isEnabled()){
if ( decoders.size() > 0 ){
Logger.log( new LogEvent(LOGID, "Active protocol decoders = " + decoders.size()));
}
}
}
copy = new ArrayList<ProtocolDecoder>( decoders );
}finally{
class_mon.exit();
}
if ( copy.size() > 0 ){
List<ProtocolDecoder> to_remove = new ArrayList<ProtocolDecoder>();
long now = SystemTime.getCurrentTime();
for ( ProtocolDecoder decoder: copy ){
if ( decoder.isComplete( now )){
to_remove.add( decoder );
}
}
if ( to_remove.size() > 0 ){
try{
class_mon.enter();
for ( ProtocolDecoder decoder: to_remove ){
decoders.remove( decoder );
}
}finally{
class_mon.exit();
}
}
}
}
}
);
}
protected
ProtocolDecoder(
boolean run_timer )
{
if ( run_timer ){
try{
class_mon.enter();
decoders.add( this );
}finally{
class_mon.exit();
}
}
}
public abstract boolean
isComplete(
long now );
public abstract TransportHelperFilter
getFilter();
public static void
addSecrets(
byte[][] secrets )
{
ProtocolDecoderPHE.addSecretsSupport( secrets );
}
public static void
removeSecrets(
byte[][] secrets )
{
ProtocolDecoderPHE.removeSecretsSupport( secrets );
}
}