Mercurial > 510Connectbot
annotate src/org/tn5250j/encoding/ToolboxCodePageFactory.java @ 108:ae3092cd9cbf
use hash map rather than linear search thru arrays
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Wed, 18 Jun 2014 12:00:45 -0700 |
| parents | ab8d2f6c5847 |
| children | 77ac18bc1b2f |
| rev | line source |
|---|---|
| 5 | 1 /** |
| 2 * Title: ToolboxCodePage | |
| 3 * Copyright: Copyright (c) 2001, 2002, 2003 | |
| 4 * Company: | |
| 5 * @author Kenneth J. Pouncey | |
| 6 * rewritten by LDC, WVL, Luc | |
| 7 * @version 0.4 | |
| 8 * | |
| 9 * Description: | |
| 10 * | |
| 11 * This program is free software; you can redistribute it and/or modify | |
| 12 * it under the terms of the GNU General Public License as published by | |
| 13 * the Free Software Foundation; either version 2, or (at your option) | |
| 14 * any later version. | |
| 15 * | |
| 16 * This program is distributed in the hope that it will be useful, | |
| 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 * GNU General Public License for more details. | |
| 20 * | |
| 21 * You should have received a copy of the GNU General Public License | |
| 22 * along with this software; see the file COPYING. If not, write to | |
| 23 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
| 24 * Boston, MA 02111-1307 USA | |
| 25 * | |
| 26 */ | |
| 27 package org.tn5250j.encoding; | |
| 28 | |
| 29 import java.lang.reflect.Constructor; | |
| 30 import java.lang.reflect.Method; | |
| 31 | |
|
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32 import android.util.Log; |
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33 |
| 5 | 34 |
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35 class ToolboxCodePageFactory { |
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36 private static final String TAG = "ToolboxCodePageFactory"; |
| 5 | 37 private final static String[] CODEPAGES = { "Big5", "Cp037", "Cp273", "Cp277", "Cp278", |
| 38 "Cp280", "Cp284", "Cp285", "Cp297", "Cp420", "Cp424", "Cp437", | |
| 39 "Cp500", "Cp737", "Cp775", "Cp838", "Cp850", "Cp852", "Cp855", | |
| 40 "Cp856", "Cp857", "Cp858", "Cp860", "Cp861", "Cp862", "Cp863", | |
| 41 "Cp864", "Cp865", "Cp866", "Cp868", "Cp869", "Cp870", | |
| 42 "Cp871", "Cp874", "Cp875", "Cp918", "Cp921", "Cp922", | |
| 43 "Cp923", // IBM Latin-9. | |
| 44 "Cp930", "Cp933", "Cp935", "Cp937", "Cp939", "Cp942", "Cp943", | |
| 45 "Cp948", "Cp949", "Cp950", "Cp964", "Cp970", "Cp1006", "Cp1025", | |
| 46 "Cp1026", "Cp1046", "Cp1097", "Cp1098", "Cp1112", "Cp1122", | |
| 47 "Cp1123", "Cp1124", "Cp1140", "Cp1141", "Cp1142", "Cp1143", | |
| 48 "Cp1144", "Cp1145", "Cp1146", "Cp1147", "Cp1148", "Cp1149", | |
| 49 "Cp1252", "Cp1250", "Cp1251", "Cp1253", "Cp1254", "Cp1255", | |
| 50 "Cp1256", "Cp1257", "Cp1258", "Cp1381", "Cp1383", "Cp33722" }; | |
| 51 | |
| 52 private static final String CONVERTER_NAME = "com.ibm.as400.access.CharConverter"; | |
| 53 private static final String TOBYTES_NAME = "stringToByteArray"; | |
| 54 private static final String TOSTRING_NAME = "byteArrayToString"; | |
| 55 | |
| 56 private static ToolboxCodePageFactory singleton; | |
| 57 | |
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58 |
| 5 | 59 |
| 60 private ToolboxCodePageFactory() { | |
| 61 /* private for singleton */ | |
| 62 } | |
| 63 | |
| 64 public static synchronized ToolboxCodePageFactory getInstance() { | |
| 65 if (singleton == null) { | |
| 66 singleton = new ToolboxCodePageFactory(); | |
| 67 } | |
| 68 return singleton; | |
| 69 } | |
| 70 | |
| 71 /** | |
| 72 * @return | |
| 73 */ | |
| 74 public String[] getAvailableCodePages() { | |
| 75 try { | |
| 76 final ClassLoader loader = getClassLoader(); | |
| 77 Class.forName(CONVERTER_NAME, false, loader); | |
| 78 return CODEPAGES; | |
| 79 } catch (Exception e) { | |
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5949eb469a79
adding tn5250 files, native android logging
Carl Byington <carl@five-ten-sg.com>
parents:
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diff
changeset
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80 Log.i(TAG,"Couldn't locate JT400 Toolbox in classpath. Charset converters can't be used."); |
| 5 | 81 return new String[0]; |
| 82 } | |
| 83 } | |
| 84 | |
| 85 /** | |
| 86 * @param encoding | |
| 87 * @return | |
| 88 */ | |
| 89 public ICodePage getCodePage(String encoding) { | |
| 90 try { | |
| 91 ClassLoader loader = getClassLoader(); | |
| 92 Class<?> conv_class = Class.forName(CONVERTER_NAME, true, loader); | |
| 93 Constructor<?> conv_constructor = conv_class.getConstructor(new Class[] { String.class }); | |
| 94 Method toBytes_method = conv_class.getMethod(TOBYTES_NAME, new Class[] { String.class }); | |
| 95 Method toString_method = conv_class.getMethod(TOSTRING_NAME, new Class[] { byte[].class }); | |
| 96 Object convobj = conv_constructor.newInstance(new Object[] { encoding }); | |
| 97 return new ToolboxConverterProxy(convobj, toBytes_method, toString_method); | |
| 98 } catch (Exception e) { | |
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5949eb469a79
adding tn5250 files, native android logging
Carl Byington <carl@five-ten-sg.com>
parents:
5
diff
changeset
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99 Log.w(TAG,"Can't load charset converter from JT400 Toolbox for code page " + encoding, e); |
| 5 | 100 return null; |
| 101 } | |
| 102 } | |
| 103 | |
| 104 private static final ClassLoader getClassLoader() { | |
| 105 ClassLoader loader = ToolboxCodePageFactory.class.getClassLoader(); | |
| 106 if (loader == null) { | |
| 107 loader = ClassLoader.getSystemClassLoader(); | |
| 108 } | |
| 109 return loader; | |
| 110 } | |
| 111 | |
| 112 private static class ToolboxConverterProxy implements ICodePage { | |
| 113 | |
| 114 private final Object converter; | |
| 115 private final Method tobytesMethod; | |
| 116 private final Method tostringMethod; | |
| 117 | |
| 118 private ToolboxConverterProxy(Object converterObject, Method tobytesMethod, Method tostringMethod) { | |
| 119 super(); | |
| 120 this.converter = converterObject; | |
| 121 this.tobytesMethod = tobytesMethod; | |
| 122 this.tostringMethod = tostringMethod; | |
| 123 } | |
| 124 | |
| 125 public char ebcdic2uni(int index) { | |
| 126 Object result; | |
| 127 try { | |
| 128 result = tostringMethod.invoke(converter, new Object[] { new byte[] { (byte) (index & 0xFF) } }); | |
| 129 } catch (Throwable t) { | |
| 130 result = null; | |
| 131 } | |
| 132 | |
| 133 if (result == null) | |
| 134 return 0x00; | |
| 135 | |
| 136 return ((String) result).charAt(0); | |
| 137 } | |
| 138 | |
| 139 public byte uni2ebcdic(char index) { | |
| 140 Object result; | |
| 141 try { | |
| 142 result = tobytesMethod.invoke(converter, new Object[] { new String(new char[] { index }) }); | |
| 143 } catch (Throwable t) { | |
| 144 result = null; | |
| 145 } | |
| 146 | |
| 147 if (result == null) | |
| 148 return 0x00; | |
| 149 | |
| 150 return ((byte[]) result)[0]; | |
| 151 } | |
| 152 } | |
| 153 | |
| 154 } |