FragmentMessage_1_2.java revision 608:7e06bf1dcb09 
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
26package com.sun.corba.se.impl.protocol.giopmsgheaders;
27
28import 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
36public 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
109