1 /*
   2  * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  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).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.corba.se.impl.protocol.giopmsgheaders;
  27 
  28 import com.sun.corba.se.spi.ior.iiop.GIOPVersion;
  29 
  30 /**
  31  * This implements the GIOP 1.2 Fragment header.
  32  *
  33  * @author Ram Jeyaraman 05/14/2000
  34  */
  35 
  36 public final class FragmentMessage_1_2 extends Message_1_2
  37         implements FragmentMessage {
  38 
  39     // Constructors
  40 
  41     FragmentMessage_1_2() {}
  42 
  43     // This is currently never called.
  44     FragmentMessage_1_2(int _request_id) {
  45         super(Message.GIOPBigMagic, GIOPVersion.V1_2, FLAG_NO_FRAG_BIG_ENDIAN,
  46             Message.GIOPFragment, 0);
  47         this.message_type = GIOPFragment;
  48         request_id = _request_id;
  49     }
  50 
  51     FragmentMessage_1_2(Message_1_1 msg12) {
  52         this.magic = msg12.magic;
  53         this.GIOP_version = msg12.GIOP_version;
  54         this.flags = msg12.flags;
  55         this.message_type = GIOPFragment;
  56         this.message_size = 0;
  57 
  58         switch (msg12.message_type) {
  59         case GIOPRequest :
  60             this.request_id = ((RequestMessage) msg12).getRequestId();
  61             break;
  62         case GIOPReply :
  63             this.request_id = ((ReplyMessage) msg12).getRequestId();
  64             break;
  65         case GIOPLocateRequest :
  66             this.request_id = ((LocateRequestMessage) msg12).getRequestId();
  67             break;
  68         case GIOPLocateReply :
  69             this.request_id = ((LocateReplyMessage) msg12).getRequestId();
  70             break;
  71         case GIOPFragment :
  72             this.request_id = ((FragmentMessage) msg12).getRequestId();
  73             break;
  74         }
  75     }
  76 
  77     // Accessor methods
  78 
  79     public int getRequestId() {
  80         return this.request_id;
  81     }
  82 
  83     public int getHeaderLength() {
  84         return GIOPMessageHeaderLength + 4;
  85     }
  86 
  87     // IO methods
  88 
  89     /* This will never be called, since we do not currently read the
  90      * request_id from an CDRInputStream. Instead we use the
  91      * readGIOP_1_2_requestId to read the requestId from a byte buffer.
  92      */
  93     public void read(org.omg.CORBA.portable.InputStream istream) {
  94         super.read(istream);
  95         this.request_id = istream.read_ulong();
  96     }
  97 
  98     public void write(org.omg.CORBA.portable.OutputStream ostream) {
  99         super.write(ostream);
 100         ostream.write_ulong(this.request_id);
 101     }
 102 
 103     public void callback(MessageHandler handler)
 104         throws java.io.IOException
 105     {
 106         handler.handleInput(this);
 107     }
 108 } // class FragmentMessage_1_2