annotate src/org/tn5250j/encoding/CharMappings.java @ 334:097cfe8770dd ganymed

still hangs during connection
author Carl Byington <carl@five-ten-sg.com>
date Thu, 31 Jul 2014 14:33:20 -0700
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1 /**
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2 * Title: CharMappings.java
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3 * Copyright: Copyright (c) 2001,2002,2003
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4 * Company:
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5 * @author Kenneth J. Pouncey
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6 * rewritten by LDC, WVL, Luc
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7 * @version 0.4
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8 *
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9 * Description:
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10 *
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11 * This program is free software; you can redistribute it and/or modify
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12 * it under the terms of the GNU General Public License as published by
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13 * the Free Software Foundation; either version 2, or (at your option)
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14 * any later version.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU General Public License
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22 * along with this software; see the file COPYING. If not, write to
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23 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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24 * Boston, MA 02111-1307 USA
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25 *
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26 */
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27 package org.tn5250j.encoding;
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28
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29 import java.util.Arrays;
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30 import java.util.HashMap;
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31 import java.util.HashSet;
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32 import java.util.Set;
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33
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34 /**
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35 * Character Mappings for EBCDIC to ASCII and ASCII to EBCDIC translations
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36 */
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37 public class CharMappings {
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38
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39 public static final String DFT_ENC = "37";
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40 public static final int NATIVE_CP = 0;
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41 public static final int TOOLBOX_CP = 1;
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42
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43 private static final HashMap<String, ICodePage> map = new HashMap<String, ICodePage>();
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44
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45 public static String[] getAvailableCodePages() {
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46 Set<String> cpset = new HashSet<String>(); // no double entries
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48 for (String cp : BuiltInCodePageFactory.getInstance().getAvailableCodePages()) {
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49 cpset.add(cp);
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50 }
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51
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52 for (String cp : ToolboxCodePageFactory.getInstance().getAvailableCodePages()) {
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53 cpset.add(cp);
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54 }
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55
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56 String[] cparray = cpset.toArray(new String[cpset.size()]);
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57 Arrays.sort(cparray);
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58 return cparray;
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59 }
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60
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61 public static ICodePage getCodePage(String encoding) {
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62 if (map.containsKey(encoding)) {
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63 return map.get(encoding);
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64 }
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65
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66 ICodePage cp = BuiltInCodePageFactory.getInstance().getCodePage(encoding);
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68 if (cp != null) {
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69 map.put(encoding, cp);
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70 return cp;
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71 }
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72
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73 cp = ToolboxCodePageFactory.getInstance().getCodePage(encoding);
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75 if (cp != null) {
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76 map.put(encoding, cp);
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77 return cp;
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78 }
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79
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80 cp = JavaCodePageFactory.getCodePage(encoding);
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82 if (cp != null) {
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83 map.put(encoding, cp);
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84 return cp;
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85 }
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87 // unsupported codepage ==> return default
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88 return BuiltInCodePageFactory.getInstance().getCodePage(DFT_ENC);
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89 }
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90
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91 }