/*
* $Id: LocaleUtil.java 667964 2008-06-15 15:00:54Z apetrelli $
*
* 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.util.ArrayList;
import java.util.List;
import java.util.Locale;
/**
* Utilities for locale manipulation.
*
* @version $Rev: 667964 $ $Date: 2008-06-15 17:00:54 +0200 (Sun, 15 Jun 2008) $
* @since 2.1.0
*/
public class Main {
/**
* The "null" Locale, i.e. a Locale that points to no real locale.
*
* @since 2.1.0
*/
public static final Locale NULL_LOCALE = new Locale("");
/**
* Calculate the postfixes along the search path from the base bundle to the
* bundle specified by baseName and locale. Method copied from
* java.util.ResourceBundle
*
* @param locale The locale.
* @return a list of postfixes to add to filenames.
* @since 2.1.0
*/
public static List calculatePostfixes(Locale locale) {
final List result = new ArrayList();
// The default configuration file must be loaded to allow correct
// definition inheritance.
result.add("");
if (locale == null) {
return result;
}
final String language = locale.getLanguage();
final int languageLength = language.length();
final String country = locale.getCountry();
final int countryLength = country.length();
final String variant = locale.getVariant();
final int variantLength = variant.length();
if (languageLength + countryLength + variantLength == 0) {
// The locale is "", "", "".
return result;
}
final StringBuffer temp = new StringBuffer();
temp.append('_');
temp.append(language);
if (languageLength > 0) {
result.add(temp.toString());
}
if (countryLength + variantLength == 0) {
return result;
}
temp.append('_');
temp.append(country);
if (countryLength > 0) {
result.add(temp.toString());
}
if (variantLength == 0) {
return result;
} else {
temp.append('_');
temp.append(variant);
result.add(temp.toString());
return result;
}
}
}