Source for gnu.java.nio.NIOSocketImpl

   1: /* NIOSocketImpl.java -- subclass of PlainSocketImpl for NIO.
   2:    Copyright (C) 2006 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package gnu.java.nio;
  40: 
  41: import gnu.java.net.PlainSocketImpl;
  42: 
  43: import java.io.IOException;
  44: import java.net.InetAddress;
  45: 
  46: /**
  47:  * @author Casey Marshall (csm@gnu.org)
  48:  */
  49: public class NIOSocketImpl extends PlainSocketImpl
  50: {
  51: 
  52:   private final SocketChannelImpl channel;
  53: 
  54:   NIOSocketImpl(SocketChannelImpl channel) throws IOException
  55:   {
  56:     this.channel = channel;
  57:     impl.getState().setChannelFD(channel.getVMChannel().getState());
  58:   }
  59: 
  60:   /* (non-Javadoc)
  61:    * @see java.net.SocketImpl#getInetAddress()
  62:    */
  63:   //@Override
  64:   protected InetAddress getInetAddress()
  65:   {
  66:     try
  67:       {
  68:         return channel.getVMChannel().getPeerAddress().getAddress();
  69:       }
  70:     catch (IOException ioe)
  71:       {
  72:         return null;
  73:       }
  74:     catch (NullPointerException npe)
  75:       {
  76:         // Socket is not connected yet.
  77:         return null;
  78:       }
  79:   }
  80: 
  81:   /* (non-Javadoc)
  82:    * @see java.net.SocketImpl#getPort()
  83:    */
  84:   //@Override
  85:   protected int getPort()
  86:   {
  87:     try
  88:       {
  89:         return channel.getVMChannel().getPeerAddress().getPort();
  90:       }
  91:     catch (IOException ioe)
  92:       {
  93:         return -1;
  94:       }
  95:     catch (NullPointerException npe)
  96:       {
  97:         // Socket is not connected yet.
  98:         return -1;
  99:       }
 100:   }
 101: 
 102:   /* (non-Javadoc)
 103:    * @see gnu.java.net.PlainSocketImpl#create(boolean)
 104:    */
 105:   //@Override
 106:   protected synchronized void create(boolean stream)
 107:   {
 108:     // Ignored; the socket has already been created.
 109:   }
 110: }