jars/icu4j-52_1/main/tests/framework/src/com/ibm/icu/dev/util/IcuUnicodeNormalizerFactory.java

   1 /*
   2  *******************************************************************************
   3  * Copyright (C) 2011-2012, International Business Machines Corporation and         *
   4  * others. All Rights Reserved.                                                *
   5  *******************************************************************************
   6  */
   7 package com.ibm.icu.dev.util;
   8
   9 import com.ibm.icu.dev.util.UnicodeTransform.Type;
  10 import com.ibm.icu.lang.UCharacter;
  11 import com.ibm.icu.text.Normalizer2;
  12
  13 /**
  14  * @author markdavis
  15  *
  16  */
  17 public class IcuUnicodeNormalizerFactory implements UnicodeTransform.Factory {
  18
  19     public UnicodeTransform getInstance(Type type) {
  20         switch (type) {
  21         case NFC:
  22             return new IcuUnicodeNormalizer(Normalizer2.getNFCInstance());
  23         case NFKC:
  24             return new IcuUnicodeNormalizer(Normalizer2.getNFKCInstance());
  25         case NFD:
  26             return new IcuUnicodeNormalizer(Normalizer2.getNFDInstance());
  27         case NFKD:
  28             return new IcuUnicodeNormalizer(Normalizer2.getNFKDInstance());
  29         case CASEFOLD:
  30             return new CaseFolder();
  31         default:
  32             throw new IllegalArgumentException();
  33         }
  34     }
  35
  36     private static class CaseFolder extends UnicodeTransform {
  37         @Override
  38         public String transform(String source) {
  39             return UCharacter.foldCase(source.toString(), true);
  40         }
  41     }
  42
  43     private static class IcuUnicodeNormalizer extends UnicodeTransform {
  44         private Normalizer2 normalizer;
  45
  46         private IcuUnicodeNormalizer(Normalizer2 normalizer) {
  47             this.normalizer = normalizer;
  48         }
  49
  50         public String transform(String src) {
  51             return normalizer.normalize(src);
  52         }
  53
  54         public boolean isTransformed(String s) {
  55             return normalizer.isNormalized(s);
  56         }
  57     }
  58 }