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/**
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* Copyright (C) 2007 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.model.taxon;
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import java.io.Serializable;
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import java.util.Comparator;
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import eu.etaxonomy.cdm.model.name.Rank;
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import eu.etaxonomy.cdm.model.name.TaxonNameBase;
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/**
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* @author k.luther
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* @date 18.03.2010
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*
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*/
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public class TaxonNodeByRankAndNameComparator implements Serializable, Comparator<TaxonNode> {
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private static final long serialVersionUID = 2596641007876609704L;
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public int compare(TaxonNode node1, TaxonNode node2) {
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if (node1.getUuid().equals(node2.getUuid())){
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return 0;
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}
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TaxonBase taxon1 = node1.getTaxon();
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TaxonBase taxon2 = node2.getTaxon();
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TaxonNameBase name1 = taxon1.getName();
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TaxonNameBase name2 = taxon2.getName();
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Rank rankTax1 = (name1 == null) ? null : name1.getRank();
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Rank rankTax2 = (name2 == null) ? null : name2.getRank();
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//first compare ranks, if ranks are equal (or both null) compare names or taxon title cache if names are null
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if (rankTax1 == null && rankTax2 != null){
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return 1;
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}else if(rankTax2 == null && rankTax1 != null){
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return -1;
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}else if (rankTax1 != null && rankTax1.isHigher(rankTax2)){
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return -1;
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}else if (rankTax1 == null && rankTax2 == null || rankTax1.equals(rankTax2)) {
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if (name1 != null && name2 != null){
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//same rank, order by name
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int result = name1.compareTo(name2);
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if (result == 0){
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return taxon1.getUuid().compareTo(taxon2.getUuid());
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}else{
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return result;
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}
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}else {
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//this is maybe not 100% correct, we need to compare name cases, but it is a very rare case
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return taxon1.getTitleCache().compareTo(taxon2.getTitleCache());
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}
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}else{
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//rankTax2.isHigher(rankTax1)
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return 1;
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}
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}
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}
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