1 /*
   2  * Copyright (c) 2000, 2005, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.text;
  27 
  28 import sun.text.normalizer.NormalizerBase;
  29 
  30 public class CollatorUtilities {
  31 
  32     public static int toLegacyMode(NormalizerBase.Mode mode) {
  33         // find the index of the legacy mode in the table;
  34         // if it's not there, default to Collator.NO_DECOMPOSITION (0)
  35         int legacyMode = legacyModeMap.length;
  36         while (legacyMode > 0) {
  37             --legacyMode;
  38             if (legacyModeMap[legacyMode] == mode) {
  39                 break;
  40             }
  41         }
  42         return legacyMode;
  43     }
  44 
  45     public static NormalizerBase.Mode toNormalizerMode(int mode) {
  46         NormalizerBase.Mode normalizerMode;
  47 
  48         try {
  49             normalizerMode = legacyModeMap[mode];
  50         }
  51         catch(ArrayIndexOutOfBoundsException e) {
  52             normalizerMode = NormalizerBase.NONE;
  53         }
  54         return normalizerMode;
  55 
  56     }
  57 
  58 
  59     static NormalizerBase.Mode[] legacyModeMap = {
  60         NormalizerBase.NONE,   // Collator.NO_DECOMPOSITION
  61         NormalizerBase.NFD,    // Collator.CANONICAL_DECOMPOSITION
  62         NormalizerBase.NFKD,   // Collator.FULL_DECOMPOSITION
  63     };
  64 
  65 }