/*
 * File    : PRUDPPacketReceiver.java
 * Created : 20-Jan-2004
 * By      : parg
 * 
 * Azureus - a Java Bittorrent client
 *
 * 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 ( see the LICENSE file ).
 *
 * 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
 */

package com.aelitis.net.udp.uc;

/**
 * @author parg
 *
 */

import java.net.*;

public interface 
PRUDPPacketHandler 
{
	public static final int	PRIORITY_LOW		= 2;
	public static final int	PRIORITY_MEDIUM		= 1;
	public static final int	PRIORITY_HIGH		= 0;
	
	public static final int	PRIORITY_IMMEDIATE	= 99;

		/**
		 * Asynchronous send and receive
		 * @param request_packet
		 * @param destination_address
		 * @param receiver
		 * @throws PRUDPPacketHandlerException
		 */
	
	public void
	sendAndReceive(
		PRUDPPacket					request_packet,
		InetSocketAddress			destination_address,
		PRUDPPacketReceiver			receiver,
		long						timeout,
		int							priority )
	
		throws PRUDPPacketHandlerException;
	
		/**
		 * Synchronous send and receive
		 * @param auth
		 * @param request_packet
		 * @param destination_address
		 * @return
		 * @throws PRUDPPacketHandlerException
		 */
	
	public PRUDPPacket
	sendAndReceive(
		PasswordAuthentication		auth,
		PRUDPPacket					request_packet,
		InetSocketAddress			destination_address )
	
		throws PRUDPPacketHandlerException;
	
	public PRUDPPacket
	sendAndReceive(
		PasswordAuthentication		auth,
		PRUDPPacket					request_packet,
		InetSocketAddress			destination_address,
		long						timeout_millis )
	
		throws PRUDPPacketHandlerException;
	
	public PRUDPPacket
	sendAndReceive(
		PasswordAuthentication		auth,
		PRUDPPacket					request_packet,
		InetSocketAddress			destination_address,
		long						timeout_millis,
		int							priority )
	
		throws PRUDPPacketHandlerException;
	
		/**
		 * Send only
		 * @param request_packet
		 * @param destination_address
		 * @throws PRUDPPacketHandlerException
		 */
	
	public void
	send(
		PRUDPPacket					request_packet,
		InetSocketAddress			destination_address )
	
		throws PRUDPPacketHandlerException;
	
	public PRUDPRequestHandler
	getRequestHandler();
	
	public void
	setRequestHandler(
		PRUDPRequestHandler	request_handler );
	
	public void
	primordialSend(
		byte[]				data,
		InetSocketAddress	target )
	
		throws PRUDPPacketHandlerException;
	
	public boolean
	hasPrimordialHandler();
	
	public void
	addPrimordialHandler(
		PRUDPPrimordialHandler	handler );
	
	public void
	removePrimordialHandler(
		PRUDPPrimordialHandler	handler );
	
	public int
	getPort();
	
	public InetAddress
	getBindIP();
	
	public void
	setDelays(
		int		send_delay,
		int		receive_delay,
		int		queued_request_timeout );
	
	public void
	setExplicitBindAddress(
		InetAddress	address );
	
	public PRUDPPacketHandlerStats
	getStats();
	
	public PRUDPPacketHandler
	openSession(
		InetSocketAddress	target )
	
		throws PRUDPPacketHandlerException;
	
	public void
	closeSession()
	
		throws PRUDPPacketHandlerException;
	
	public void
	destroy();
}
