| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. 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. For additional information regarding |
| * copyright in this work, please see the NOTICE file in the top level |
| * directory of this distribution. |
| */ |
| package org.apache.abdera2.common; |
| |
| import java.util.Locale; |
| import java.util.ResourceBundle; |
| |
| /** |
| * Wraps ResourceBundle with a couple of additional, useful methods. Used for l10n |
| */ |
| public final class Localizer { |
| |
| private static Localizer instance = null; |
| |
| public static synchronized Localizer getInstance() { |
| if (instance == null) |
| instance = new Localizer(); |
| return instance; |
| } |
| |
| public static synchronized void setInstance(Localizer localizer) { |
| Localizer.instance = localizer; |
| } |
| |
| public static String get(String key) { |
| return getInstance().getValue(key); |
| } |
| |
| public static String get(String key, String defaultValue) { |
| return getInstance().getValue(key, defaultValue); |
| } |
| |
| public static String sprintf(String key, Object... args) { |
| return getInstance().sprintfValue(key, args); |
| } |
| |
| private static final String DEFAULT_BUNDLE = "abderamessages"; |
| |
| private final Locale locale; |
| private final ResourceBundle bundle; |
| |
| public Localizer() { |
| this(Locale.getDefault(), Thread.currentThread().getContextClassLoader()); |
| } |
| |
| public Localizer(Locale locale, ClassLoader loader) { |
| this(initResourceBundle(DEFAULT_BUNDLE, locale, loader), locale); |
| } |
| |
| public Localizer(String bundle) { |
| this(initResourceBundle(bundle, Locale.getDefault(), Thread.currentThread().getContextClassLoader())); |
| } |
| |
| public Localizer(String bundle, Locale locale) { |
| this(initResourceBundle(bundle, locale, Thread.currentThread().getContextClassLoader())); |
| } |
| |
| public Localizer(ResourceBundle bundle) { |
| this(bundle, bundle.getLocale()); |
| } |
| |
| public Localizer(ResourceBundle bundle, Locale locale) { |
| this.bundle = bundle; |
| this.locale = locale; |
| } |
| |
| private static ResourceBundle initResourceBundle(String bundle, Locale locale, ClassLoader loader) { |
| try { |
| return ResourceBundle.getBundle(bundle, locale, loader); |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| |
| public Locale getLocale() { |
| return locale; |
| } |
| |
| public String getValue(String key) { |
| try { |
| return bundle.getString(key); |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| |
| public String getValue(String key, String defaultValue) { |
| String value = getValue(key); |
| return value != null ? value : defaultValue; |
| } |
| |
| /** |
| * Use the JDK 1.5 sprintf style Formatter |
| */ |
| public String sprintfValue(String key, Object... args) { |
| String value = getValue(key); |
| return value != null ? String.format(locale, value, args) : null; |
| } |
| } |