View Javadoc

1   /***
2    * Redistribution and use of this software and associated documentation
3    * ("Software"), with or without modification, are permitted provided
4    * that the following conditions are met:
5    *
6    * 1. Redistributions of source code must retain copyright
7    *    statements and notices.  Redistributions must also contain a
8    *    copy of this document.
9    *
10   * 2. Redistributions in binary form must reproduce the
11   *    above copyright notice, this list of conditions and the
12   *    following disclaimer in the documentation and/or other
13   *    materials provided with the distribution.
14   *
15   * 3. The name "Exolab" must not be used to endorse or promote
16   *    products derived from this Software without prior written
17   *    permission of Exoffice Technologies.  For written permission,
18   *    please contact info@exolab.org.
19   *
20   * 4. Products derived from this Software may not be called "Exolab"
21   *    nor may "Exolab" appear in their names without prior written
22   *    permission of Exoffice Technologies. Exolab is a registered
23   *    trademark of Exoffice Technologies.
24   *
25   * 5. Due credit should be given to the Exolab Project
26   *    (http://www.exolab.org/).
27   *
28   * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29   * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
32   * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39   * OF THE POSSIBILITY OF SUCH DAMAGE.
40   *
41   * Copyright 2003-2004 (C) Exoffice Technologies Inc. All Rights Reserved.
42   *
43   * $Id: Constants.java,v 1.3 2005/05/30 13:34:49 tanderson Exp $
44   */
45  package org.exolab.jms.net.multiplexer;
46  
47  
48  /***
49   * Protocol constants for the multiplexer
50   *
51   * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
52   * @version $Revision: 1.3 $ $Date: 2005/05/30 13:34:49 $
53   */
54  interface Constants {
55  
56      /***
57       * Magic no. used in stream verification.
58       */
59      int MAGIC = 0xBADDECAF;
60  
61      /***
62       * Indicates that the packet contains protocol version.
63       */
64      int VERSION = 0x00000001;
65  
66      /***
67       * Indicates that a packet is a request to open a new channel.
68       */
69      byte OPEN = 0x20;
70  
71      /***
72       * Indicates that a packet is a request to close an existing channel.
73       */
74      byte CLOSE = 0x21;
75  
76      /***
77       * Indicates the start of an invocation request.
78       */
79      byte REQUEST = 0x30;
80  
81      /***
82       * Indicates the start of an invocation return.
83       */
84      byte RESPONSE = 0x31;
85  
86      /***
87       * Indicates the continuation of a stream of data packets.
88       */
89      byte DATA = 0x32;
90  
91      /***
92       * Indicates that the client is supplying user/password authentication
93       * details.
94       */
95      byte AUTH_BASIC = 0x40;
96  
97      /***
98       * Indicates that a client is supplying no authentication details.
99       */
100     byte AUTH_NONE = 0x41;
101 
102     /***
103      * Indicates that connection has been accepted.
104      */
105     byte AUTH_OK = 0x4E;
106 
107     /***
108      * Indicates that connection has been refused.
109      */
110     byte AUTH_DENIED = 0x4F;
111 
112     /***
113      * Indicates that a packet is a ping request.
114      */
115     byte PING_REQUEST = 0x50;
116 
117     /***
118      * Indicates that a packet is a ping response.
119      */
120     byte PING_RESPONSE = 0x51;
121 
122     /***
123      * Indicates the no. of bytes read from the stream.
124      */
125     byte FLOW_READ = 0x60;
126 
127     /***
128      * Indicates to close the connection.
129      */
130     byte SHUTDOWN = 0x70;
131 
132 }