1 /*
   2  * Copyright (c) 2015, 2016, 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.util.resources.provider;
  27 
  28 import java.util.Locale;
  29 import java.util.ResourceBundle;
  30 import sun.util.resources.LocaleData;
  31 
  32 /**
  33  * Service Provider for loading locale data resource bundles in jdk.localedata
  34  * except for JavaTimeSupplementary resource bundles.
  35  */
  36 public class LocaleDataProvider extends LocaleData.CommonResourceBundleProvider {
  37     @Override
  38     public ResourceBundle getBundle(String baseName, Locale locale) {
  39         return loadResourceBundle(toBundleName(baseName, locale));
  40     }
  41 
  42     /**
  43      * Utility method for loading a resource bundle in jdk.localedata.
  44      */
  45     static ResourceBundle loadResourceBundle(String bundleName) {
  46         Class<?> c = Class.forName(LocaleDataProvider.class.getModule(), bundleName);
  47         if (c != null && ResourceBundle.class.isAssignableFrom(c)) {
  48             try {
  49                 @SuppressWarnings({"unchecked", "deprecation"})
  50                 ResourceBundle rb = ((Class<ResourceBundle>) c).newInstance();
  51                 return rb;
  52             } catch (InstantiationException | IllegalAccessException e) {
  53                 throw new InternalError(e);
  54             }
  55         }
  56         return null;
  57     }
  58 }