CompositeLanguageCodeParser.java

/**
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community 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://opensource.org/licenses/ecl2.txt
 *
 * 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.opencastproject.adminui.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class CompositeLanguageCodeParser {

  /**
   * Some language strings are composed of language code and country, this pattern is the basis for finding the language
   * part.
   */
  public static final String COMPOSITE_LANGUAGE_NAME = "(.*)[_|-].*";

  private static final Pattern COMPOSITE_LANGUAGE_PATTERN = Pattern.compile(COMPOSITE_LANGUAGE_NAME);
  private Matcher matcher;

  public CompositeLanguageCodeParser(String compositedLanguageCode) {
    matcher = COMPOSITE_LANGUAGE_PATTERN.matcher(compositedLanguageCode);
  }

  public boolean isComposite() {
    return matcher.matches();
  }

  public String getSimpleLanguage() {
    if (matcher.matches()) {
      return matcher.group(1);
    }
    return "";
  }

}