1 /*
   2  * Copyright (c) 2012, 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 build.tools.generatebreakiteratordata;
  27 
  28 import java.util.Arrays;
  29 import java.util.ResourceBundle;
  30 import java.util.List;
  31 import java.util.Locale;
  32 
  33 class BreakIteratorRBControl extends ResourceBundle.Control {
  34     static final BreakIteratorRBControl INSTANCE = new BreakIteratorRBControl();
  35 
  36     private static final String RESOURCES = ".resources.";
  37 
  38     private BreakIteratorRBControl() {
  39     }
  40 
  41     @Override
  42     public Locale getFallbackLocale(String baseName, Locale locale) {
  43         // No fallback
  44         return null;
  45     }
  46 
  47     @Override
  48     public List<Locale> getCandidateLocales(String baseName, Locale locale) {
  49         // No parents lookup
  50         return Arrays.asList(locale);
  51     }
  52 
  53     /**
  54      * Changes baseName to its per-language package name and
  55      * calls the super class implementation.
  56      */
  57     @Override
  58     public String toBundleName(String baseName, Locale locale) {
  59         String newBaseName = baseName;
  60         String lang = locale.getLanguage();
  61         if (lang.length() > 0) {
  62             int index = baseName.indexOf(RESOURCES);
  63             if (index > 0) {
  64                 index += RESOURCES.length();
  65                 newBaseName = baseName.substring(0, index) + lang + "."
  66                                   + baseName.substring(index);
  67             }
  68         }
  69         return super.toBundleName(newBaseName, locale);
  70     }
  71 }