/**
 * Copyright or © or Copr. Ministère Français chargé de la Culture
 * et de la Communication (2013)
 * <p/>
 * contact.gincoculture_at_gouv.fr
 * <p/>
 * This software is a computer program whose purpose is to provide a thesaurus
 * management solution.
 * <p/>
 * This software is governed by the CeCILL license under French law and
 * abiding by the rules of distribution of free software. You can use,
 * modify and/ or redistribute the software under the terms of the CeCILL
 * license as circulated by CEA, CNRS and INRIA at the following URL
 * "http://www.cecill.info".
 * <p/>
 * As a counterpart to the access to the source code and rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty and the software's author, the holder of the
 * economic rights, and the successive licensors have only limited liability.
 * <p/>
 * In this respect, the user's attention is drawn to the risks associated
 * with loading, using, modifying and/or developing or reproducing the
 * software by the user in light of its specific status of free software,
 * that may mean that it is complicated to manipulate, and that also
 * therefore means that it is reserved for developers and experienced
 * professionals having in-depth computer knowledge. Users are therefore
 * encouraged to load and test the software's suitability as regards their
 * requirements in conditions enabling the security of their systemsand/or
 * data to be ensured and, more generally, to use and operate it in the
 * same conditions as regards security.
 * <p/>
 * The fact that you are presently reading this means that you have had
 * knowledge of the CeCILL license and that you accept its terms.
 */
package fr.mcc.ginco.utils;

import java.util.Comparator;

import fr.mcc.ginco.beans.Language;

/**
 * Compares Language, ordered by default language first, then alphabetical order
 * on the language refname
 * 
 */
public class LanguageComparator implements Comparator<Language> {

	private String defaultLanguage;

	/**
	 * Constructs a new language comparator with a default language
	 * @param defaultLanguage default application language
	 */
	public LanguageComparator(String defaultLanguage) {
		super();
		this.defaultLanguage = defaultLanguage;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
	 */
	@Override
	public int compare(Language o1, Language o2) {
		if (o1.getId().equals(defaultLanguage)) {
			if (o2.getId().equals(defaultLanguage)) {
				return 0;
			} else {
				return 1;
			}
		} else if (o2.getId().equals(defaultLanguage)) {
			return -1;
		} else {
			return o2.getRefname().compareTo(o1.getRefname());
		}
	}

}