KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > iiop > MessageWriter


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.iiop;
30
31 import java.io.IOException JavaDoc;
32
33 abstract public class MessageWriter {
34   /**
35    * Starts a 1.0 message.
36    */
37   public void start10Message(int type)
38   {
39   }
40
41   /**
42    * Starts a 1.1 message.
43    */
44   public void start11Message(int type)
45   {
46   }
47
48   /**
49    * Starts a 1.2 message.
50    */
51   public void start12Message(int type, int requestId)
52   {
53   }
54   
55   /**
56    * Returns the offset.
57    */
58   abstract public int getOffset();
59   
60   /**
61    * Writes a byte.
62    */
63   abstract public void write(int v);
64   
65   /**
66    * Writes data
67    */
68   abstract public void write(byte []buffer, int offset, int length);
69   
70   /**
71    * Writes a short
72    */
73   public void writeShort(int v)
74   {
75     write(v >> 8);
76     write(v);
77   }
78   
79   /**
80    * Writes a char
81    */
82   public void writeChar(char v)
83   {
84     write(v >> 8);
85     write(v);
86   }
87   
88   /**
89    * Writes an integer.
90    */
91   public void writeInt(int v)
92   {
93     write(v >> 24);
94     write(v >> 16);
95     write(v >> 8);
96     write(v);
97   }
98   
99   /**
100    * Writes a long.
101    */
102   public void writeLong(long v)
103   {
104     write((int) (v >> 56));
105     write((int) (v >> 48));
106     write((int) (v >> 40));
107     write((int) (v >> 32));
108     
109     write((int) (v >> 24));
110     write((int) (v >> 16));
111     write((int) (v >> 8));
112     write((int) v);
113   }
114   
115   /**
116    * Aligns to a specified value.
117    */
118   public void align(int v)
119   {
120     int offset = getOffset();
121
122     while (offset % v != 0) {
123       offset++;
124       write(0);
125     }
126   }
127
128   /**
129    * Completes the response.
130    */
131   abstract public void close()
132     throws IOException JavaDoc;
133 }
134
Popular Tags