Package com.aelitis.azureus.core.networkmanager.impl.tcp

Source Code of com.aelitis.azureus.core.networkmanager.impl.tcp.LightweightTCPTransport

/*
* Created on Oct 28, 2005
* Created by Alon Rohter
* Copyright (C) 2005, 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.tcp;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;

import com.aelitis.azureus.core.networkmanager.EventWaiter;
import com.aelitis.azureus.core.networkmanager.NetworkConnection;
import com.aelitis.azureus.core.networkmanager.ProtocolEndpoint;
import com.aelitis.azureus.core.networkmanager.Transport;
import com.aelitis.azureus.core.networkmanager.TransportEndpoint;
import com.aelitis.azureus.core.networkmanager.impl.TransportHelperFilter;


/**
* This class is essentially a socket channel wrapper to support working with az message encoders/decoders.
*/
public class LightweightTCPTransport implements Transport {
 
  private final TransportEndpoint      transport_endpoint;
  private final TransportHelperFilter   filter; 
 
  public LightweightTCPTransport( ProtocolEndpoint  pe, TransportHelperFilter filter ) {
    SocketChannel channel = ((TCPTransportHelper)filter.getHelper()).getSocketChannel();
    transport_endpoint  = new TransportEndpointTCP( pe, channel );
    this.filter = filter;
  }
 
  public TransportEndpoint
  getTransportEndpoint()
  {
    return( transport_endpoint );
  }

  public long write( ByteBuffer[] buffers, int array_offset, int length ) throws IOException {
    return filter.write( buffers, array_offset, length );
  }

 
  public long read( ByteBuffer[] buffers, int array_offset, int length ) throws IOException {
    return filter.read( buffers, array_offset, length );
  }
 

  public SocketChannel getSocketChannel(){  return ((TCPTransportHelper)filter.getHelper()).getSocketChannel()}
 
  public InetSocketAddress
  getRemoteAddress()
  {
    return( new InetSocketAddress( getSocketChannel().socket().getInetAddress(), getSocketChannel().socket().getPort()));
  }
 
  public String getDescription(){  return getSocketChannel().socket().getInetAddress().getHostAddress() + ": " + getSocketChannel().socket().getPort()}
 
  public void close( String reason ){
    try {
      getSocketChannel().close()//close() can block
    }
    catch( Throwable t) { t.printStackTrace(); }
  }
 
  public int
  getMssSize()
  {
    return( TCPNetworkManager.getTcpMssSize());
  }
 
  public void setAlreadyRead( ByteBuffer bytes_already_read ){   throw new RuntimeException( "not implemented" )}
  public boolean isReadyForWrite(EventWaiter waiter){  throw new RuntimeException( "not implemented" )
  public long isReadyForRead(EventWaiter waiter){  throw new RuntimeException( "not implemented" )
  public void setReadyForRead(){ throw new RuntimeException( "not implemented" )
  public void connectOutbound( ByteBuffer initial_data, ConnectListener listener, int priority ){ throw new RuntimeException( "not implemented" );
  public void connectedInbound(){ throw new RuntimeException( "not implemented" );
  public void setTransportMode( int mode ){ throw new RuntimeException( "not implemented" ); }
  public int getTransportMode(){ throw new RuntimeException( "not implemented" )}
  public void setTrace(boolean on) {
    // TODO Auto-generated method stub

  }
  public String getEncryption(boolean verbose){ return( filter.getName(verbose)); }
  public boolean isEncrypted(){ return( filter.isEncrypted());}
  public boolean isTCP(){ return true; }
  public String getProtocol(){ return "TCP"; }
 
  public void
  bindConnection(
  NetworkConnection  connection )
  {
  }
 
  public void
  unbindConnection(
  NetworkConnection  connection )
  { 
  }
}
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