1. /*

  2.  * @(#)LocateRequestMessage_1_2.java	1.11 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. import com.sun.corba.se.internal.ior.ObjectKey;

  12. import com.sun.corba.se.internal.iiop.ORB;

  13. 

  14. /**

  15.  * This implements the GIOP 1.2 LocateRequest header.

  16.  *

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

  18.  * @version 1.0

  19.  */

  20. 

  21. public final class LocateRequestMessage_1_2 extends Message_1_2

  22.         implements LocateRequestMessage {

  23. 

  24.     // Instance variables

  25. 

  26.     private ORB orb = null;

  27.     private ObjectKey objectKey = null;

  28.     private TargetAddress target = null;

  29. 

  30.     // Constructors

  31. 

  32.     LocateRequestMessage_1_2(ORB orb) {

  33.         this.orb = orb;

  34.     }

  35. 

  36.     LocateRequestMessage_1_2(ORB orb, int _request_id, TargetAddress _target) {

  37.         super(Message.GIOPBigMagic, GIOPVersion.V1_2, FLAG_NO_FRAG_BIG_ENDIAN,

  38.             Message.GIOPLocateRequest, 0);

  39.         this.orb = orb;

  40.         request_id = _request_id;

  41.         target = _target;

  42.     }

  43. 

  44.     // Accessor methods (LocateRequestMessage interface)

  45. 

  46.     public int getRequestId() {

  47.         return this.request_id;

  48.     }

  49. 

  50.     public ObjectKey getObjectKey() {

  51.         if (this.objectKey == null) {

  52. 	    // this will raise a MARSHAL exception upon errors.

  53. 	    this.objectKey = MessageBase.extractObjectKey(target, orb);

  54.         }

  55. 

  56. 	return this.objectKey;

  57.     }

  58. 

  59.     // IO methods

  60. 

  61.     public void read(org.omg.CORBA.portable.InputStream istream) {

  62.         super.read(istream);

  63.         this.request_id = istream.read_ulong();

  64.         this.target = TargetAddressHelper.read(istream);

  65.         getObjectKey(); // this does AddressingDisposition check        

  66.     }

  67. 

  68.     public void write(org.omg.CORBA.portable.OutputStream ostream) {

  69.         super.write(ostream);

  70.         ostream.write_ulong (this.request_id);

  71.         nullCheck(this.target);

  72.         TargetAddressHelper.write(ostream, this.target);

  73.     }

  74. 

  75.     public final void callback(com.sun.corba.se.internal.iiop.MessageMediator m)

  76.         throws java.io.IOException

  77.     {

  78.         m.handleInput(this);

  79.     }

  80. } // class LocateRequestMessage_1_2