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12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
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25 
26 package com.sun.corba.se.impl.protocol.giopmsgheaders;
27 
28 import com.sun.corba.se.spi.ior.ObjectKey;
29 
30 import com.sun.corba.se.spi.ior.iiop.GIOPVersion;
31 import com.sun.corba.se.spi.orb.ORB;
32 
33 /**
34  * This implements the GIOP 1.2 LocateRequest header.
35  *
36  * @author Ram Jeyaraman 05/14/2000
37  */
38 
39 public final class LocateRequestMessage_1_2 extends Message_1_2
40         implements LocateRequestMessage {
41 
42     // Instance variables
43 
44     private ORB orb = null;
45     private ObjectKey objectKey = null;
46     private TargetAddress target = null;
47 
48     // Constructors
49 
LocateRequestMessage_1_2(ORB orb)50     LocateRequestMessage_1_2(ORB orb) {
51         this.orb = orb;
52     }
53 
LocateRequestMessage_1_2(ORB orb, int _request_id, TargetAddress _target)54     LocateRequestMessage_1_2(ORB orb, int _request_id, TargetAddress _target) {
55         super(Message.GIOPBigMagic, GIOPVersion.V1_2, FLAG_NO_FRAG_BIG_ENDIAN,
56             Message.GIOPLocateRequest, 0);
57         this.orb = orb;
58         request_id = _request_id;
59         target = _target;
60     }
61 
62     // Accessor methods (LocateRequestMessage interface)
63 
getRequestId()64     public int getRequestId() {
65         return this.request_id;
66     }
67 
getObjectKey()68     public ObjectKey getObjectKey() {
69         if (this.objectKey == null) {
70             // this will raise a MARSHAL exception upon errors.
71             this.objectKey = MessageBase.extractObjectKey(target, orb);
72         }
73 
74         return this.objectKey;
75     }
76 
77     // IO methods
78 
read(org.omg.CORBA.portable.InputStream istream)79     public void read(org.omg.CORBA.portable.InputStream istream) {
80         super.read(istream);
81         this.request_id = istream.read_ulong();
82         this.target = TargetAddressHelper.read(istream);
83         getObjectKey(); // this does AddressingDisposition check
84     }
85 
write(org.omg.CORBA.portable.OutputStream ostream)86     public void write(org.omg.CORBA.portable.OutputStream ostream) {
87         super.write(ostream);
88         ostream.write_ulong (this.request_id);
89         nullCheck(this.target);
90         TargetAddressHelper.write(ostream, this.target);
91     }
92 
callback(MessageHandler handler)93     public void callback(MessageHandler handler)
94         throws java.io.IOException
95     {
96         handler.handleInput(this);
97     }
98 } // class LocateRequestMessage_1_2
99