ServerSocketChannel.java 3.4 KB

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  1. /* ServerSocketChannel.java --
  2. Copyright (C) 2002 Free Software Foundation, Inc.
  3. This file is part of GNU Classpath.
  4. GNU Classpath is free software; you can redistribute it and/or modify
  5. it under the terms of the GNU General Public License as published by
  6. the Free Software Foundation; either version 2, or (at your option)
  7. any later version.
  8. GNU Classpath is distributed in the hope that it will be useful, but
  9. WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. General Public License for more details.
  12. You should have received a copy of the GNU General Public License
  13. along with GNU Classpath; see the file COPYING. If not, write to the
  14. Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  15. 02110-1301 USA.
  16. Linking this library statically or dynamically with other modules is
  17. making a combined work based on this library. Thus, the terms and
  18. conditions of the GNU General Public License cover the whole
  19. combination.
  20. As a special exception, the copyright holders of this library give you
  21. permission to link this library with independent modules to produce an
  22. executable, regardless of the license terms of these independent
  23. modules, and to copy and distribute the resulting executable under
  24. terms of your choice, provided that you also meet, for each linked
  25. independent module, the terms and conditions of the license of that
  26. module. An independent module is a module which is not derived from
  27. or based on this library. If you modify this library, you may extend
  28. this exception to your version of the library, but you are not
  29. obligated to do so. If you do not wish to do so, delete this
  30. exception statement from your version. */
  31. package java.nio.channels;
  32. import java.io.IOException;
  33. import java.net.ServerSocket;
  34. import java.nio.channels.spi.AbstractSelectableChannel;
  35. import java.nio.channels.spi.SelectorProvider;
  36. /**
  37. * @author Michael Koch
  38. * @since 1.4
  39. */
  40. public abstract class ServerSocketChannel extends AbstractSelectableChannel
  41. {
  42. /**
  43. * Initializes this channel.
  44. */
  45. protected ServerSocketChannel(SelectorProvider provider)
  46. {
  47. super(provider);
  48. }
  49. /**
  50. * Accepts a connection made to this channel's socket.
  51. *
  52. * @exception IOException If an error occurs
  53. * @exception AsynchronousCloseException If another thread closes this
  54. * channel while the accept operation is in progress.
  55. * @exception ClosedByInterruptException If another thread interrupts the
  56. * current thread while the accept operation is in progress, thereby closing
  57. * the channel and setting the current thread's interrupt status.
  58. * @exception ClosedChannelException If the channel is closed.
  59. * @exception NotYetBoundException If the channel's socket is not yet bound.
  60. * @exception SecurityException If a security manager has been installed and
  61. * it does not permit access to the remote endpoint of the new connection.
  62. */
  63. public abstract SocketChannel accept() throws IOException;
  64. /**
  65. * Retrieves the channels socket.
  66. */
  67. public abstract ServerSocket socket();
  68. /**
  69. * Opens a server socket channel.
  70. *
  71. * @exception IOException If an error occurs
  72. */
  73. public static ServerSocketChannel open() throws IOException
  74. {
  75. return SelectorProvider.provider().openServerSocketChannel();
  76. }
  77. /**
  78. * Retrieves the valid operations for this channel.
  79. */
  80. public final int validOps()
  81. {
  82. return SelectionKey.OP_ACCEPT;
  83. }
  84. }