remotepeerdata.java

java语言开发的P2P流媒体系统

/* Stream-2-Stream - Peer to peer television and radio
 * October 13, 2005 - This file has been modified from the original P2P-Radio source
 * Project homepage: http://s2s.sourceforge.net/
 * Copyright (C) 2005-2006 Jason Hooks
 */
/* 
 * P2P-Radio - Peer to peer streaming system
 * Project homepage: http://p2p-radio.sourceforge.net/
 * Copyright (C) 2003-2004 Michael Kaufmann <[e-mail]>
 * 
 * ---------------------------------------------------------------------------
 * 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
 * ---------------------------------------------------------------------------
 */

package stream2stream.network;

import java.io.*;
import java.net.*;
import java.util.*;
import stream2stream.network.*;


/**
 * Contains all data that is associated with a {@link RemotePeer}.
 * <P>
 * It maintains a list of all peers that have complained that this
 * peer was a freeloader.
 * 
 * @author Michael Kaufmann
 */
public class RemotePeerData
{
	private Vector freeloaderComplainants = new Vector();
	private int freeloaderComplaints = 0;
	
	private UniversalSocket socket;
	private StreamDispatcherForChildren streamDispatcher;
	private Transmitter transmitter;
	
	// Bis zu diesem Zeitpunkt muss das Kind eine TCP-Verbindung
	// aufgebaut haben
	private long timeToConnect;
	
	private boolean isConnected = false;
	private boolean hasBeenConnected = false;
		
	private Random random = new Random();
	
	/**
	 * Returns the number of freeloader complaints that other peers have
	 * made about about this peer.
	 */
	public int getFreeloaderComplaints()
	{
		return freeloaderComplaints;
	}
	
	/**
	 * Returns a vector of all complainants who have claimed that this peer
	 * is a freeloader.
	 */
	public Vector getFreeloaderComplainants()
	{
		return freeloaderComplainants;
	}
	
	/**
	 * Adds a peer to the freeloader complainants list
	 */
	public void addFreeloaderComplainant(RemotePeer peer)
	{
		// Schauen, ob sich schon einmal ein Peer mit dieser
		// IP-Adresse beschwert hat
		
		boolean complainantAlreadyInList = false;
		
		for (int i=0; i < freeloaderComplainants.size(); i++)
		{
			if (((RemotePeer)freeloaderComplainants.get(i)).getSocketAddress().getAddress().equals(peer.getSocketAddress().getAddress()))
			{
				complainantAlreadyInList = true;
				break;
			}
		}
		
		if (!complainantAlreadyInList)
		{
			freeloaderComplainants.add(peer);
			freeloaderComplaints++;
		}
	}
	
	/**
	 * Removes a peer from the freeloader complainants list
	 */
	public void removeFreeloaderComplainant(RemotePeer peer)
	{
		if (freeloaderComplainants.contains(peer))
		{
			freeloaderComplainants.remove(peer);
			freeloaderComplaints--;
		}
	}
	
	
	/**
	 * Removes a random peer from the freeloader complainants list
	 */
	public void removeRandomFreeloaderComplainant()
	{
		if (freeloaderComplaints != 0)
		{
			removeFreeloaderComplainant((RemotePeer)freeloaderComplainants.get(random.nextInt(freeloaderComplainants.size())));
		}
	}
	
	public void setSocket(UniversalSocket socket)
	{
		this.socket = socket;
		isConnected = hasBeenConnected = true;
	}
		
	public UniversalSocket getSocket()
	{
		return socket;
	}
	
	
	public long getTimeToConnect()
	{
		return timeToConnect;
	}
	
	public void setTimeToConnect(long timeToConnect)
	{
		this.timeToConnect = timeToConnect;
	}
	
	public StreamDispatcherForChildren getStreamDispatcher()
	{
		return streamDispatcher;
	}
	
	public void setStreamDispatcher(StreamDispatcherForChildren streamDispatcher)
	{
		this.streamDispatcher = streamDispatcher;
	}
	
	public Transmitter getTransmitter()
	{
		return transmitter;
	}
	
	public void setTransmitter(Transmitter transmitter)
	{
		this.transmitter = transmitter;
	}
	
	public boolean hasBeenConnected()
	{
		return hasBeenConnected;
	}
	
	public boolean isConnected()
	{
		return isConnected;
	}
	
	public void disconnect()
	{
		isConnected = false;
	}
}