jars/icu4j-4_2_1-src/src/com/ibm/icu/text/CollatorServiceShim.java

   1 /**\r
   2 *******************************************************************************\r
   3 * Copyright (C) 2003-2008, 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.ICULocaleService.LocaleKeyFactory;\r
  17 import com.ibm.icu.impl.ICUService;\r
  18 import com.ibm.icu.impl.ICUService.Factory;\r
  19 import com.ibm.icu.text.Collator.CollatorFactory;\r
  20 import com.ibm.icu.util.ULocale;\r
  21 \r
  22 final class CollatorServiceShim extends Collator.ServiceShim {\r
  23 \r
  24     Collator getInstance(ULocale locale) {\r
  25     // use service cache, it's faster than instantiation\r
  26 //          if (service.isDefault()) {\r
  27 //              return new RuleBasedCollator(locale);\r
  28 //          }\r
  29 \r
  30         try {\r
  31             ULocale[] actualLoc = new ULocale[1];\r
  32             Collator coll = (Collator)service.get(locale, actualLoc);\r
  33             if (coll == null) {\r
  34                 throw new MissingResourceException("Could not locate Collator data", "", "");\r
  35             }\r
  36             coll = (Collator) coll.clone();\r
  37             coll.setLocale(actualLoc[0], actualLoc[0]); // services make no distinction between actual & valid\r
  38             return coll;\r
  39         }\r
  40         catch (CloneNotSupportedException e) {\r
  41         ///CLOVER:OFF\r
  42             throw new IllegalStateException(e.getMessage());\r
  43         ///CLOVER:ON\r
  44         }\r
  45     }\r
  46 \r
  47     Object registerInstance(Collator collator, ULocale locale) {\r
  48         return service.registerObject(collator, locale);\r
  49     }\r
  50 \r
  51     Object registerFactory(CollatorFactory f) {\r
  52         class CFactory extends LocaleKeyFactory {\r
  53             CollatorFactory delegate;\r
  54 \r
  55             CFactory(CollatorFactory fctry) {\r
  56                 super(fctry.visible()); \r
  57                 this.delegate = fctry;\r
  58             }\r
  59 \r
  60             public Object handleCreate(ULocale loc, int kind, ICUService srvc) {\r
  61                 Object coll = delegate.createCollator(loc);\r
  62                 return coll;\r
  63             }\r
  64                 \r
  65             public String getDisplayName(String id, ULocale displayLocale) {\r
  66                 ULocale objectLocale = new ULocale(id);\r
  67                 return delegate.getDisplayName(objectLocale, displayLocale);\r
  68             }\r
  69 \r
  70             public Set getSupportedIDs() {\r
  71                 return delegate.getSupportedLocaleIDs();\r
  72             }\r
  73         }\r
  74 \r
  75         return service.registerFactory(new CFactory(f));\r
  76     }\r
  77 \r
  78     boolean unregister(Object registryKey) {\r
  79         return service.unregisterFactory((Factory)registryKey);\r
  80     }\r
  81 \r
  82     Locale[] getAvailableLocales() {\r
  83         // TODO rewrite this to just wrap getAvailableULocales later\r
  84         if (service.isDefault()) {\r
  85             return ICUResourceBundle.getAvailableLocales(ICUResourceBundle.ICU_COLLATION_BASE_NAME);\r
  86         }\r
  87         return service.getAvailableLocales();\r
  88     }\r
  89 \r
  90     ULocale[] getAvailableULocales() {\r
  91         if (service.isDefault()) {\r
  92             return ICUResourceBundle.getAvailableULocales(ICUResourceBundle.ICU_COLLATION_BASE_NAME);\r
  93         }\r
  94         return service.getAvailableULocales();\r
  95     }\r
  96 \r
  97     String getDisplayName(ULocale objectLocale, ULocale displayLocale) {\r
  98         String id = objectLocale.getName();\r
  99         return service.getDisplayName(id, displayLocale);\r
 100     }\r
 101 \r
 102     private static class CService extends ICULocaleService {\r
 103         CService() {\r
 104             super("Collator");\r
 105 \r
 106             class CollatorFactory extends ICUResourceBundleFactory {\r
 107                 CollatorFactory() {\r
 108                     super(ICUResourceBundle.ICU_COLLATION_BASE_NAME);\r
 109                 }\r
 110 \r
 111                 protected Object handleCreate(ULocale uloc, int kind, ICUService srvc) {\r
 112                     return new RuleBasedCollator(uloc);\r
 113                 }\r
 114             }\r
 115 \r
 116             this.registerFactory(new CollatorFactory());\r
 117             markDefault();\r
 118         }\r
 119 \r
 120         protected Object handleDefault(Key key, String[] actualIDReturn) {\r
 121             if (actualIDReturn != null) {\r
 122                 actualIDReturn[0] = "root";\r
 123             }\r
 124             try {\r
 125                 return new RuleBasedCollator(ULocale.ROOT);\r
 126             }\r
 127             catch (MissingResourceException e) {\r
 128                 return null;\r
 129             }\r
 130         }\r
 131     }\r
 132     private static ICULocaleService service = new CService();\r
 133 }\r