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 */
25package com.sun.corba.se.impl.protocol.giopmsgheaders;
26
27import java.nio.ByteBuffer;
28
29import com.sun.corba.se.spi.ior.iiop.GIOPVersion;
30
31public class Message_1_2 extends Message_1_1
32{
33    protected int request_id = (int) 0;
34
35    Message_1_2() {}
36
37    Message_1_2(int _magic, GIOPVersion _GIOP_version, byte _flags,
38            byte _message_type, int _message_size) {
39
40        super(_magic,
41              _GIOP_version,
42              _flags,
43              _message_type,
44              _message_size);
45    }
46
47    /**
48     * The byteBuffer is presumed to have contents of the message already
49     * read in.  It must have 12 bytes of space at the beginning for the GIOP header,
50     * but the header doesn't have to be copied in.
51     */
52    public void unmarshalRequestID(ByteBuffer byteBuffer) {
53        int b1, b2, b3, b4;
54
55        if (!isLittleEndian()) {
56            b1 = (byteBuffer.get(GIOPMessageHeaderLength+0) << 24) & 0xFF000000;
57            b2 = (byteBuffer.get(GIOPMessageHeaderLength+1) << 16) & 0x00FF0000;
58            b3 = (byteBuffer.get(GIOPMessageHeaderLength+2) << 8)  & 0x0000FF00;
59            b4 = (byteBuffer.get(GIOPMessageHeaderLength+3) << 0)  & 0x000000FF;
60        } else {
61            b1 = (byteBuffer.get(GIOPMessageHeaderLength+3) << 24) & 0xFF000000;
62            b2 = (byteBuffer.get(GIOPMessageHeaderLength+2) << 16) & 0x00FF0000;
63            b3 = (byteBuffer.get(GIOPMessageHeaderLength+1) << 8)  & 0x0000FF00;
64            b4 = (byteBuffer.get(GIOPMessageHeaderLength+0) << 0)  & 0x000000FF;
65        }
66
67        this.request_id = (b1 | b2 | b3 | b4);
68    }
69
70    public void write(org.omg.CORBA.portable.OutputStream ostream) {
71        if (this.encodingVersion == Message.CDR_ENC_VERSION) {
72            super.write(ostream);
73            return;
74        }
75        GIOPVersion gv = this.GIOP_version; // save
76        this.GIOP_version = GIOPVersion.getInstance((byte)13,
77                                                    this.encodingVersion);
78        super.write(ostream);
79        this.GIOP_version = gv; // restore
80    }
81}
82