Source for java.nio.channels.ServerSocketChannel

   1: /* ServerSocketChannel.java --
   2:    Copyright (C) 2002 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: package java.nio.channels;
  39: 
  40: import java.io.IOException;
  41: import java.net.ServerSocket;
  42: import java.nio.channels.spi.AbstractSelectableChannel;
  43: import java.nio.channels.spi.SelectorProvider;
  44: 
  45: 
  46: /**
  47:  * @author Michael Koch
  48:  * @since 1.4
  49:  */
  50: public abstract class ServerSocketChannel extends AbstractSelectableChannel
  51: {
  52:   /**
  53:    * Initializes this channel.
  54:    */
  55:   protected ServerSocketChannel(SelectorProvider provider)
  56:   {
  57:     super(provider);
  58:   }
  59: 
  60:   /**
  61:    * Accepts a connection made to this channel's socket.
  62:    *
  63:    * @exception IOException If an error occurs
  64:    * @exception AsynchronousCloseException If another thread closes this
  65:    * channel while the accept operation is in progress.
  66:    * @exception ClosedByInterruptException If another thread interrupts the
  67:    * current thread while the accept operation is in progress, thereby closing
  68:    * the channel and setting the current thread's interrupt status.
  69:    * @exception ClosedChannelException If the channel is closed.
  70:    * @exception NotYetBoundException If the channel's socket is not yet bound.
  71:    * @exception SecurityException If a security manager has been installed and
  72:    * it does not permit access to the remote endpoint of the new connection.
  73:    */
  74:   public abstract SocketChannel accept() throws IOException;
  75: 
  76:   /**
  77:    * Retrieves the channels socket.
  78:    */
  79:   public abstract ServerSocket socket();
  80: 
  81:   /**
  82:    * Opens a server socket channel.
  83:    *
  84:    * @exception IOException If an error occurs
  85:    */
  86:   public static ServerSocketChannel open() throws IOException
  87:   {
  88:     return SelectorProvider.provider().openServerSocketChannel();
  89:   }
  90: 
  91:   /**
  92:    * Retrieves the valid operations for this channel.
  93:    */
  94:   public final int validOps()
  95:   {
  96:     return SelectionKey.OP_ACCEPT;
  97:   }
  98: }