Mercurial > 510Connectbot

comparison app/src/main/java/org/tn5250j/encoding/JavaCodePageFactory.java @ 438:d29cce60f393

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
migrate from Eclipse to Android Studio
author Carl Byington <carl@five-ten-sg.com>
date Thu, 03 Dec 2015 11:23:55 -0800
parents src/org/tn5250j/encoding/JavaCodePageFactory.java@77ac18bc1b2f
children
comparison
equal deleted inserted replaced
437:208b31032318 438:d29cce60f393
1 /**
2 * Title: JavaCodePage
3 * Copyright: Copyright (c) 2001, 2002, 2003
4 * Company:
5 * @author LDC, WVL, Luc, master_jaf
6 * @version 0.4
7 *
8 * Description:
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this software; see the file COPYING. If not, write to
22 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
23 * Boston, MA 02111-1307 USA
24 *
25 */
26 package org.tn5250j.encoding;
27
28 import java.nio.ByteBuffer;
29 import java.nio.CharBuffer;
30 import java.nio.charset.Charset;
31 import java.nio.charset.CharsetDecoder;
32 import java.nio.charset.CharsetEncoder;
33
34 /* package */ class JavaCodePageFactory extends AbstractCodePage {
35
36 private final CharsetEncoder encoder;
37 private final CharsetDecoder decoder;
38
39 /* package */ JavaCodePageFactory(String encoding, CharsetEncoder encoder, CharsetDecoder decoder) {
40 super(encoding);
41 this.encoder = encoder;
42 this.decoder = decoder;
43 }
44
45 /* (non-Javadoc)
46 * @see org.tn5250j.encoding.CodePage#ebcdic2uni(int)
47 */
48 public char ebcdic2uni(int codepoint) {
49 try {
50 final ByteBuffer in = ByteBuffer.wrap(new byte[] { (byte) codepoint });
51 final CharBuffer out = this.decoder.decode(in);
52 return out.get(0);
53 }
54 catch (Exception cce) {
55 return ' ';
56 }
57 }
58
59 /* (non-Javadoc)
60 * @see org.tn5250j.encoding.CodePage#uni2ebcdic(char)
61 */
62 public byte uni2ebcdic(char character) {
63 try {
64 final CharBuffer in = CharBuffer.wrap(new char[] {character});
65 final ByteBuffer out = this.encoder.encode(in);
66 return out.get(0);
67 }
68 catch (Exception cce) {
69 return 0x0;
70 }
71 }
72
73 /**
74 * @param encoding
75 * @return A new {@link CodePage} object OR null, if not available.
76 */
77 /* package */ static ICodePage getCodePage(final String encoding) {
78 CharsetDecoder dec = null;
79 CharsetEncoder enc = null;
80
81 try {
82 final Charset cs = java.nio.charset.Charset.forName(encoding);
83 dec = cs.newDecoder();
84 enc = cs.newEncoder();
85 }
86 catch (Exception e) {
87 enc = null;
88 dec = null;
89 }
90
91 if ((enc != null) && (dec != null)) {
92 return new JavaCodePageFactory(encoding, enc, dec);
93 }
94
95 return null;
96 }
97
98 }