/*
 * Created on 24-Apr-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.dht.netcoords;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

public interface 
DHTNetworkPositionProvider 
{
	public byte
	getPositionType();
	
	public DHTNetworkPosition
	create(
		byte[]		ID,
		boolean		is_local );
	
		/**
		 * Returns a local, hopefully stable, network position for us or null if none available
		 */
	
	public DHTNetworkPosition
	getLocalPosition();
	
	public DHTNetworkPosition
	deserialisePosition(
		DataInputStream		is )
	
		throws IOException;	
	
	public void
	serialiseStats(
		DataOutputStream	os )
	
		throws IOException;
	
	public void
	startUp(
		DataInputStream		is );
	
	public void
	shutDown(
		DataOutputStream	os );
}