KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > quadcap > sql > types > CharStream


1 package com.quadcap.sql.types;
2
3 /* Copyright 2002 - 2003 Quadcap Software. All rights reserved.
4  *
5  * This software is distributed under the Quadcap Free Software License.
6  * This software may be used or modified for any purpose, personal or
7  * commercial. Open Source redistributions are permitted. Commercial
8  * redistribution of larger works derived from, or works which bundle
9  * this software requires a "Commercial Redistribution License"; see
10  * http://www.quadcap.com/purchase.
11  *
12  * Redistributions qualify as "Open Source" under one of the following terms:
13  *
14  * Redistributions are made at no charge beyond the reasonable cost of
15  * materials and delivery.
16  *
17  * Redistributions are accompanied by a copy of the Source Code or by an
18  * irrevocable offer to provide a copy of the Source Code for up to three
19  * years at the cost of materials and delivery. Such redistributions
20  * must allow further use, modification, and redistribution of the Source
21  * Code under substantially the same terms as this license.
22  *
23  * Redistributions of source code must retain the copyright notices as they
24  * appear in each source code file, these license terms, and the
25  * disclaimer/limitation of liability set forth as paragraph 6 below.
26  *
27  * Redistributions in binary form must reproduce this Copyright Notice,
28  * these license terms, and the disclaimer/limitation of liability set
29  * forth as paragraph 6 below, in the documentation and/or other materials
30  * provided with the distribution.
31  *
32  * The Software is provided on an "AS IS" basis. No warranty is
33  * provided that the Software is free of defects, or fit for a
34  * particular purpose.
35  *
36  * Limitation of Liability. Quadcap Software shall not be liable
37  * for any damages suffered by the Licensee or any third party resulting
38  * from use of the Software.
39  */
40
41 import java.io.IOException JavaDoc;
42 import java.io.InputStream JavaDoc;
43 import java.io.Reader JavaDoc;
44
45 import com.quadcap.util.Debug;
46
47 /**
48  * An adaptor class which converts a Reader into an InputStream where
49  * each character is represented as two bytes
50  *
51  * @author Stan Bailes
52  */
53 public class CharStream extends InputStream JavaDoc {
54     Reader JavaDoc r;
55     int b;
56     boolean bValid = false;
57     
58     public CharStream(Reader JavaDoc r) {
59         this.r = r;
60     }
61
62     public int read() throws IOException JavaDoc {
63         if (bValid) {
64             bValid = false;
65             return b;
66         } else {
67             int c = r.read();
68             b = (c & 0xff);
69             bValid = true;
70             int ret = (c >> 8) & 0xff;
71             return ret;
72         }
73     }
74 }
75
Popular Tags