src/main/java/irc/FileTextProvider.java

   1 /*****************************************************/\r
   2 /*          This java file is a part of the          */\r
   3 /*                                                   */\r
   4 /*           -  Plouf's Java IRC Client  -           */\r
   5 /*                                                   */\r
   6 /*   Copyright (C)  2002 - 2005 Philippe Detournay   */\r
   7 /*                                                   */\r
   8 /*         All contacts : theplouf@yahoo.com         */\r
   9 /*                                                   */\r
  10 /*  PJIRC is free software; you can redistribute     */\r
  11 /*  it and/or modify it under the terms of the GNU   */\r
  12 /*  General Public License as published by the       */\r
  13 /*  Free Software Foundation; version 2 or later of  */\r
  14 /*  the License.                                     */\r
  15 /*                                                   */\r
  16 /*  PJIRC is distributed in the hope that it will    */\r
  17 /*  be useful, but WITHOUT ANY WARRANTY; without     */\r
  18 /*  even the implied warranty of MERCHANTABILITY or  */\r
  19 /*  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU   */\r
  20 /*  General Public License for more details.         */\r
  21 /*                                                   */\r
  22 /*  You should have received a copy of the GNU       */\r
  23 /*  General Public License along with PJIRC; if      */\r
  24 /*  not, write to the Free Software Foundation,      */\r
  25 /*  Inc., 59 Temple Place, Suite 330, Boston,        */\r
  26 /*  MA  02111-1307  USA                              */\r
  27 /*                                                   */\r
  28 /*****************************************************/\r
  29 \r
  30 package irc;\r
  31 \r
  32 import java.io.BufferedReader;\r
  33 import java.io.IOException;\r
  34 import java.io.InputStream;\r
  35 import java.io.InputStreamReader;\r
  36 import java.util.Hashtable;\r
  37 \r
  38 /**\r
  39  * Provides text from langage file.\r
  40  */\r
  41 public class FileTextProvider implements TextProvider {\r
  42         private Hashtable _mainlist;\r
  43         private Hashtable _backlist;\r
  44 \r
  45         /**\r
  46          * Create a new file text provider.\r
  47          * \r
  48          * @param fname\r
  49          *          langage file name.\r
  50          * @param encoding\r
  51          *          langage file encoding. Empty string for default encoding.\r
  52          * @param backname\r
  53          *          backup langage file name.\r
  54          * @param backencoding\r
  55          *          backup langage file encoding. Empty string for default encoding.\r
  56          * @param file\r
  57          *          a file handler to load file.\r
  58          */\r
  59         public FileTextProvider(String fname, String encoding, String backname, String backencoding, FileHandler file) {\r
  60                 _mainlist = new Hashtable();\r
  61                 _backlist = new Hashtable();\r
  62                 load(_mainlist, fname, encoding, file);\r
  63                 load(_backlist, backname, backencoding, file);\r
  64         }\r
  65 \r
  66         private void parse(Hashtable dest, String line) {\r
  67                 try {\r
  68                         int pos = line.indexOf(' ');\r
  69                         if (pos == -1)\r
  70                                 return;\r
  71                         String id = line.substring(0, pos);\r
  72                         String end = line.substring(pos + 1).trim();\r
  73                         if (line.indexOf('[') != -1) {\r
  74                                 pos = line.indexOf(']');\r
  75                                 if (pos == -1)\r
  76                                         return;\r
  77                                 end = line.substring(pos + 1).trim();\r
  78                         }\r
  79                         int iid = Integer.parseInt(id, 16);\r
  80                         end = replace(end, "\\s", " ");\r
  81                         dest.put(new Integer(iid), end);\r
  82                 } catch (Exception ex) {\r
  83                         throw new RuntimeException(ex.toString());\r
  84                 }\r
  85         }\r
  86 \r
  87         private void load(Hashtable dest, String fname, String encoding, FileHandler handler) {\r
  88                 InputStream stream = handler.getInputStream(fname);\r
  89                 if (stream == null)\r
  90                         return;\r
  91 \r
  92                 BufferedReader reader = null;\r
  93                 try {\r
  94                         if (encoding.length() > 0)\r
  95                                 reader = new BufferedReader(new InputStreamReader(stream, encoding));\r
  96                         else\r
  97                                 reader = new BufferedReader(new InputStreamReader(stream));\r
  98                 } catch (Exception ex) {\r
  99                         return;\r
 100                 }\r
 101 \r
 102                 try {\r
 103                         String line = reader.readLine();\r
 104                         while (line != null) {\r
 105                                 line = line.trim();\r
 106                                 if (line.length() > 0) {\r
 107                                         if (line.charAt(0) != '#') {\r
 108                                                 parse(dest, line);\r
 109                                         }\r
 110                                 }\r
 111                                 line = reader.readLine();\r
 112                         }\r
 113                         reader.close();\r
 114                 } catch (IOException ex) {\r
 115                         ex.printStackTrace();\r
 116                 }\r
 117 \r
 118         }\r
 119 \r
 120         private String replace(String on, String what, String with) {\r
 121                 int pos = on.indexOf(what);\r
 122                 while (pos >= 0) {\r
 123                         String before = on.substring(0, pos);\r
 124                         String after = on.substring(pos + what.length());\r
 125                         on = before + with + after;\r
 126                         pos = on.indexOf(what);\r
 127                 }\r
 128                 return on;\r
 129         }\r
 130 \r
 131         @Override\r
 132         public String getString(int code, String[] params) {\r
 133                 String ans = (String) _mainlist.get(new Integer(code));\r
 134                 if (ans == null)\r
 135                         ans = (String) _backlist.get(new Integer(code));\r
 136                 if (ans == null)\r
 137                         ans = (String) _mainlist.get(new Integer(ERROR_NOT_DEFINED));\r
 138                 if (ans == null)\r
 139                         ans = (String) _backlist.get(new Integer(ERROR_NOT_DEFINED));\r
 140                 if (ans == null)\r
 141                         return getStringP(ERROR_NOT_DEFINED);\r
 142                 for (int i = params.length - 1; i >= 0; i--)\r
 143                         ans = replace(ans, "%" + (i + 1), params[i]);\r
 144                 return ans;\r
 145         }\r
 146 \r
 147         @Override\r
 148         public String getString(int code) {\r
 149                 return getString(code, new String[0]);\r
 150         }\r
 151 \r
 152         @Override\r
 153         public String getString(int code, String p1) {\r
 154                 String p[] = { p1 };\r
 155                 return getString(code, p);\r
 156         }\r
 157 \r
 158         @Override\r
 159         public String getString(int code, String p1, String p2) {\r
 160                 String p[] = { p1, p2 };\r
 161                 return getString(code, p);\r
 162         }\r
 163 \r
 164         @Override\r
 165         public String getString(int code, String p1, String p2, String p3) {\r
 166                 String p[] = { p1, p2, p3 };\r
 167                 return getString(code, p);\r
 168         }\r
 169 \r
 170         private String getStringP(int code) {\r
 171                 switch (code) {\r
 172                 case ERROR_NOT_DEFINED:\r
 173                         return "Undefined string";\r
 174                 default:\r
 175                         return null;\r
 176                 }\r
 177         }\r
 178 \r
 179 }\r