1. /*

  2.  * @(#)Message.java	1.8 03/01/23

  3.  *

  4.  * Copyright 2003 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. package com.sun.corba.se.internal.iiop.messages;

  9. 

  10. import com.sun.corba.se.internal.core.GIOPVersion;

  11. 

  12. /**

  13.  * This is the base interface for different message type interfaces.

  14.  *

  15.  * @author Ram Jeyaraman 05/14/2000

  16.  * @version 1.0

  17.  */

  18. 

  19. public interface Message {

  20. 

  21.     // Generic constants

  22. 

  23.     int defaultBufferSize = 1024;

  24.     int GIOPBigEndian = 0;

  25.     int GIOPLittleEndian = 1;

  26.     int GIOPBigMagic =    0x47494F50;

  27.     int GIOPLittleMagic = 0x504F4947;

  28.     int GIOPMessageHeaderLength = 12;

  29. 

  30.     // Other useful constants

  31. 

  32.     byte LITTLE_ENDIAN_BIT = 0x01;

  33.     byte MORE_FRAGMENTS_BIT = 0x02;

  34.     byte FLAG_NO_FRAG_BIG_ENDIAN = 0x00;

  35. 

  36.     // Message types

  37. 

  38.     byte GIOPRequest = 0;

  39.     byte GIOPReply = 1;

  40.     byte GIOPCancelRequest = 2;

  41.     byte GIOPLocateRequest = 3;

  42.     byte GIOPLocateReply = 4;

  43.     byte GIOPCloseConnection = 5;

  44.     byte GIOPMessageError = 6;

  45.     byte GIOPFragment = 7; // 1.1 & 1.2:

  46. 

  47.     // Accessor methods

  48. 

  49.     GIOPVersion getGIOPVersion();

  50.     boolean isLittleEndian();

  51.     boolean moreFragmentsToFollow();

  52.     int getType();

  53.     int getSize();

  54. 

  55.     // Mutator methods

  56. 

  57.     void read(org.omg.CORBA.portable.InputStream istream);

  58.     void write(org.omg.CORBA.portable.OutputStream ostream);

  59.     void setSize(byte[] buf, int size);

  60.     FragmentMessage createFragmentMessage();

  61. 

  62. }