http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
/*
 * 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.

/**
 * 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.

Params:
  • locale – a locale
Returns:the corresponding language tag
/**
     * 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.

Params:
  • languageTag – language tag to convert
Returns:the corresponding locale
/**
     * 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]);
        }
    }
}