jars/icu4j-4_4_2-src/main/classes/core/src/com/ibm/icu/text/NumberFormatServiceShim.java

   1 /*\r
   2  *******************************************************************************\r
   3  * Copyright (C) 2003-2010, International Business Machines Corporation and    *\r
   4  * others. All Rights Reserved.                                                *\r
   5  *******************************************************************************\r
   6  */\r
   7 \r
   8 package com.ibm.icu.text;\r
   9 \r
  10 import java.util.Locale;\r
  11 import java.util.MissingResourceException;\r
  12 import java.util.Set;\r
  13 \r
  14 import com.ibm.icu.impl.ICULocaleService;\r
  15 import com.ibm.icu.impl.ICUResourceBundle;\r
  16 import com.ibm.icu.impl.ICUService;\r
  17 import com.ibm.icu.impl.ICULocaleService.LocaleKey;\r
  18 import com.ibm.icu.impl.ICULocaleService.LocaleKeyFactory;\r
  19 import com.ibm.icu.impl.ICUService.Factory;\r
  20 import com.ibm.icu.impl.ICUService.Key;\r
  21 import com.ibm.icu.text.NumberFormat.NumberFormatFactory;\r
  22 import com.ibm.icu.util.ULocale;\r
  23 \r
  24 class NumberFormatServiceShim extends NumberFormat.NumberFormatShim {\r
  25 \r
  26     Locale[] getAvailableLocales() {\r
  27         if (service.isDefault()) {\r
  28             return ICUResourceBundle.getAvailableLocales();\r
  29         }\r
  30         return service.getAvailableLocales();\r
  31     }\r
  32 \r
  33     ULocale[] getAvailableULocales() {\r
  34         if (service.isDefault()) {\r
  35             return ICUResourceBundle.getAvailableULocales();\r
  36         }\r
  37         return service.getAvailableULocales();\r
  38     }\r
  39 \r
  40     private static final class NFFactory extends LocaleKeyFactory {\r
  41         private NumberFormatFactory delegate;\r
  42 \r
  43         NFFactory(NumberFormatFactory delegate) {\r
  44             super(delegate.visible() ? VISIBLE : INVISIBLE);\r
  45 \r
  46             this.delegate = delegate;\r
  47         }\r
  48 \r
  49         public Object create(Key key, ICUService srvc) {\r
  50             if (handlesKey(key)) {\r
  51                 LocaleKey lkey = (LocaleKey)key;\r
  52                 ULocale loc = lkey.canonicalLocale();\r
  53                 int kind = lkey.kind();\r
  54 \r
  55                 Object result = delegate.createFormat(loc, kind);\r
  56                 if (result == null) {\r
  57                     result = srvc.getKey(key, null, this);\r
  58                 }\r
  59                 return result;\r
  60             }\r
  61             return null;\r
  62         }\r
  63 \r
  64         protected Set<String> getSupportedIDs() {\r
  65             return delegate.getSupportedLocaleNames();\r
  66         }\r
  67     }\r
  68 \r
  69     Object registerFactory(NumberFormatFactory factory) {\r
  70         return service.registerFactory(new NFFactory(factory));\r
  71     }\r
  72 \r
  73     boolean unregister(Object registryKey) {\r
  74         return service.unregisterFactory((Factory)registryKey);\r
  75     }\r
  76 \r
  77     NumberFormat createInstance(ULocale desiredLocale, int choice) {\r
  78 \r
  79     // use service cache\r
  80 //          if (service.isDefault()) {\r
  81 //              return NumberFormat.createInstance(desiredLocale, choice);\r
  82 //          }\r
  83 \r
  84         ULocale[] actualLoc = new ULocale[1];\r
  85         NumberFormat fmt = (NumberFormat)service.get(desiredLocale, choice,\r
  86                                                      actualLoc);\r
  87         if (fmt == null) {\r
  88             throw new MissingResourceException("Unable to construct NumberFormat", "", "");\r
  89         }\r
  90         fmt = (NumberFormat)fmt.clone();\r
  91 \r
  92         ULocale uloc = actualLoc[0];\r
  93         fmt.setLocale(uloc, uloc); // services make no distinction between actual & valid\r
  94         return fmt;\r
  95     }\r
  96 \r
  97     private static class NFService extends ICULocaleService {\r
  98         NFService() {\r
  99             super("NumberFormat");\r
 100 \r
 101             class RBNumberFormatFactory extends ICUResourceBundleFactory {\r
 102                 protected Object handleCreate(ULocale loc, int kind, ICUService srvc) {\r
 103                     return NumberFormat.createInstance(loc, kind);\r
 104                 }\r
 105             }\r
 106                 \r
 107             this.registerFactory(new RBNumberFormatFactory());\r
 108             markDefault();\r
 109         }\r
 110     }\r
 111     private static ICULocaleService service = new NFService();\r
 112 }\r