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/**
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* Copyright (C) 2018 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.compare.term;
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import java.util.Comparator;
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import eu.etaxonomy.cdm.model.term.DefinedTermBase;
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import eu.etaxonomy.cdm.model.term.OrderedTermBase;
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/**
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* @author k.luther
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* @since 07.02.2018
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*/
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public class OrderedTermComparator <T extends DefinedTermBase<T>> implements Comparator<T>{
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@Override
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public int compare(T o1, T o2) {
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if (o1 instanceof OrderedTermBase && o2 instanceof OrderedTermBase){
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OrderedTermBase odt1 = (OrderedTermBase<?>) o1;
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OrderedTermBase odt2 = (OrderedTermBase<?>) o2;
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if (odt1.getVocabulary().equals(odt2.getVocabulary())){
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return - odt1.compareTo(odt2);
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}else{
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return odt1.getVocabulary().getTitleCache().compareTo(odt2.getVocabulary().getTitleCache());
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}
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}else{
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throw new IllegalStateException("One of the compared terms are not of the type OrderedTermBase");
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}
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}
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}
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