org.apache.fop.util.LanguageTags Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id$ */
package org.apache.fop.util;
import java.util.Locale;
/**
* Provides utility methods for manipulating language tags compliant with the
* RFC 3066 specification available at http://www.ietf.org/rfc/rfc3066.txt. A
* typical language tag is a 2-letter language code sometimes followed by a country
* code. For example: en, en-US.
*/
public final class LanguageTags {
private LanguageTags() {
}
/**
* Converts the given locale to an RFC 3066 compliant language tag.
*
* @param locale a locale
* @return the corresponding language tag
*/
public static String toLanguageTag(Locale locale) {
StringBuffer sb = new StringBuffer(5);
sb.append(locale.getLanguage());
String country = locale.getCountry();
if (country.length() > 0) {
sb.append('-');
sb.append(country);
}
return sb.toString();
}
/**
* Converts an RFC 3066 compliant language tag to a locale.
*
* @param languageTag language tag to convert
* @return the corresponding locale
*/
public static Locale toLocale(String languageTag) {
String[] parts = languageTag.split("-");
if (parts.length == 1) {
return new Locale(parts[0]);
} else {
return new Locale(parts[0], parts[1]);
}
}
}