/*
 * Created on Oct 14, 2010
 * Created by Paul Gardner
 * 
 * Copyright 2010 Vuze, Inc.  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; version 2 of the License only.
 * 
 * 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.
 */


package com.aelitis.azureus.core.networkmanager;

import java.net.InetSocketAddress;
import java.util.*;

import com.aelitis.azureus.core.networkmanager.impl.tcp.ProtocolEndpointTCP;
import com.aelitis.azureus.core.networkmanager.impl.udp.ProtocolEndpointUDP;

public class 
ProtocolEndpointFactory 
{
	private static ProtocolEndpointHandler tcp_handler = null;
	private static ProtocolEndpointHandler udp_handler = null;
	
	private static Map<Integer,ProtocolEndpointHandler>	other_handlers = new HashMap<Integer, ProtocolEndpointHandler>();
	
	static{
		ProtocolEndpointTCP.register();
		ProtocolEndpointUDP.register();
	}
	
	public static void
	registerHandler(
		ProtocolEndpointHandler		handler )
	{
		int	type = handler.getType();
		
		if ( type == ProtocolEndpoint.PROTOCOL_TCP ){
			
			tcp_handler = handler;
			
		}else if ( type == ProtocolEndpoint.PROTOCOL_UDP ){
			
			udp_handler = handler;
			
		}else{
			
			other_handlers.put( type, handler );
		}
	}
	
	public static boolean
	isHandlerRegistered(
		int		type )
	{
		if ( type == ProtocolEndpoint.PROTOCOL_TCP || type == ProtocolEndpoint.PROTOCOL_UDP ){
			
			return( true );
			
		}else{
			
			return( other_handlers.containsKey( type ));
		}
	}
	
	public static ProtocolEndpoint
	createEndpoint(
		int						type,
		InetSocketAddress		target )
	{
		switch( type ){
			case ProtocolEndpoint.PROTOCOL_TCP:{
				return( tcp_handler.create( target ));
			}
			case ProtocolEndpoint.PROTOCOL_UDP:{
				return( udp_handler.create( target ));
			}
			default:{
				ProtocolEndpointHandler handler = other_handlers.get( type );
				if ( handler != null ){
					return( handler.create( target ));
				}
				return( null );
			}
		}
	}
	
	public static ProtocolEndpoint
	createEndpoint(
		int						type,
		ConnectionEndpoint		connection_endpoint,
		InetSocketAddress		target )
	{
		switch( type ){
			case ProtocolEndpoint.PROTOCOL_TCP:{
				return( tcp_handler.create( connection_endpoint, target ));
			}
			case ProtocolEndpoint.PROTOCOL_UDP:{
				return( udp_handler.create( connection_endpoint, target ));
			}
			default:{
				ProtocolEndpointHandler handler = other_handlers.get( type );
				if ( handler != null ){
					return( handler.create( connection_endpoint, target ));
				}
				return( null );
			}
		}
	}
}