root/trunk/cdmlib/cdmlib-model/src/main/java/eu/etaxonomy/cdm/model/common/TermLanguageComparator.java

/**
* Copyright (C) 2007 EDIT
* European Distributed Institute of Taxonomy 
* http://www.e-taxonomy.eu
* 
* The contents of this file are subject to the Mozilla Public License Version 1.1
* See LICENSE.TXT at the top of this package for the full license terms.
*/

package eu.etaxonomy.cdm.model.common;

import java.util.Comparator;

import org.apache.log4j.Logger;


/**
 * @author a.mueller
 * @created 14.05.2008
 * @version 1.0
 */
public class TermLanguageComparator<T extends TermBase> implements Comparator<T> {
        @SuppressWarnings("unused")
        private static Logger logger = Logger.getLogger(TermLanguageComparator.class);

        private Language defaultLanguage = Language.DEFAULT();
        private Language compareLanguage = Language.DEFAULT();
        
        
        
        /**
         * 
         */
        public TermLanguageComparator() {
                // TODO Auto-generated constructor stub
        }

        /* (non-Javadoc)
         * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
         */
        public int compare(T termbase1, T termbase2) throws RuntimeException{
                String label1 = makeCompareLabel(termbase1);
                String label2 = makeCompareLabel(termbase2);

                return label1.compareTo(label2);
        }
        
        private String makeCompareLabel(T termbase){
                String result;
                if (termbase == null){
                        return "";
                }
                result = termbase.getLabel(compareLanguage);
                if (result == null){
                        result = termbase.getLabel(defaultLanguage);
                }
                if (result == null){
                        result = "";
                }
                result += termbase.getUuid().toString();
                return result;
        }

        /**
         * @return the defaultLanguage
         */
        public Language getDefaultLanguage() {
                return defaultLanguage;
        }

        /**
         * @param defaultLanguage the defaultLanguage to set
         */
        public void setDefaultLanguage(Language defaultLanguage) {
                this.defaultLanguage = defaultLanguage;
        }

        /**
         * @return the compareLanguage
         */
        public Language getCompareLanguage() {
                return compareLanguage;
        }

        /**
         * @param compareLanguage the compareLanguage to set
         */
        public void setCompareLanguage(Language compareLanguage) {
                this.compareLanguage = compareLanguage;
        }
}