org.jspringbot.keyword.i18n.I18nUtil Maven / Gradle / Ivy
/*
* Copyright (c) 2012. JSpringBot. All Rights Reserved.
*
* See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The JSpringBot 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.
*/
package org.jspringbot.keyword.i18n;
import java.util.Locale;
public final class I18nUtil {
private I18nUtil()
{
// protects from instantiation
}
/**
* Convert a string based locale into a Locale Object.
* Assumes the string has form "{language}_{country}_{variant}".
* Examples: "en", "de_DE", "_GB", "en_US_WIN", "de__POSIX", "fr_MAC"
*
* @param localeString The String
* @return the Locale
*/
public static Locale getLocaleFromString(String localeString) {
if (localeString == null) {
return null;
}
localeString = localeString.trim();
if (localeString.toLowerCase().equals("default")) {
return Locale.getDefault();
}
// Extract language
int languageIndex = localeString.indexOf('_');
String language = null;
if (languageIndex == -1) {
// No further "_" so is "{language}" only
return new Locale(localeString, "");
} else {
language = localeString.substring(0, languageIndex);
}
// Extract country
int countryIndex = localeString.indexOf('_', languageIndex + 1);
String country = null;
if (countryIndex == -1) {
// No further "_" so is "{language}_{country}"
country = localeString.substring(languageIndex+1);
return new Locale(language, country);
} else {
// Assume all remaining is the variant so is "{language}_{country}_{variant}"
country = localeString.substring(languageIndex+1, countryIndex);
String variant = localeString.substring(countryIndex+1);
return new Locale(language, country, variant);
}
}
}