Java tutorial
//package com.java2s; /* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.security.AccessController; import java.security.PrivilegedAction; import java.util.Locale; import java.util.MissingResourceException; import java.util.ResourceBundle; import java.lang.ref.SoftReference; import java.util.HashMap; public class Main { private static HashMap<String, SoftReference<ResourceBundle>> sRefMap = null; public synchronized static ResourceBundle loadBundle(String resource) { if (sRefMap == null) { sRefMap = new HashMap<String, SoftReference<ResourceBundle>>(); } SoftReference<ResourceBundle> bundleRef = sRefMap.get(resource); if (bundleRef == null || bundleRef.get() == null) { // Attempt to load the messages. try { ResourceBundle bundle = setLocale(Locale.getDefault(), resource); bundleRef = new SoftReference<ResourceBundle>(bundle); sRefMap.put(resource, bundleRef); return bundle; } catch (Throwable e) { //Logger.global.warning("Got Throwable " + e + " loading messages"); return null; } } else { return bundleRef.get(); } } /** * Changes the locale of the messages. * * @param locale * Locale the locale to change to. * @param resource * the name of the bundle resource */ static public ResourceBundle setLocale(final Locale locale, final String resource) { try { // BEGIN android-removed // final ClassLoader loader = VM.bootCallerClassLoader(); // END android-removed return (ResourceBundle) AccessController.doPrivileged(new PrivilegedAction<Object>() { public Object run() { // BEGIN android-changed return ResourceBundle.getBundle(resource, locale, ClassLoader.getSystemClassLoader()); // END android-changed } }); } catch (MissingResourceException e) { } return null; } }