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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 java.util.UUID;
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import eu.etaxonomy.cdm.model.name.Rank;
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import eu.etaxonomy.cdm.model.name.TaxonName;
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/**
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* @author k.luther
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\* @since 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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@Override
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public int compare(TaxonNode node1, TaxonNode node2) {
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boolean node1Excluded = node1.isExcluded();
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boolean node2Excluded = node2.isExcluded();
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boolean node1Unplaced = node1.isUnplaced();
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boolean node2Unplaced = node2.isUnplaced();
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if (node1.getUuid().equals(node2.getUuid())){
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return 0;
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}
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//They should both be put to the end (first unplaced then excluded)
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if (node2Excluded && !node1Excluded){
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return -1;
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}
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if (node2Unplaced && !(node1Unplaced || node1Excluded)){
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return -1;
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}
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if (node1Excluded && !node2Excluded){
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return 1;
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}
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if (node1Unplaced && !(node2Unplaced || node2Excluded)){
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return 1;
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}
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if (node1Unplaced && node2Excluded){
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return -1;
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}
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if (node2Unplaced && node1Excluded){
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return 1;
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}
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TaxonBase<?> taxon1 = node1.getTaxon();
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TaxonBase<?> taxon2 = node2.getTaxon();
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TaxonName name1 = (taxon1 == null) ? null : taxon1.getName();
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TaxonName name2 = (taxon2 == null) ? null : 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.compareToName(name2);
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if (result == 0){
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return getTaxonUuid(taxon1, node1).compareTo(getTaxonUuid(taxon2, node2));
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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 getTaxonTitle(taxon1, node1).compareTo(getTaxonTitle(taxon2, node2));
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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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* @param taxon1
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* @return
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*/
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public String getTaxonTitle(TaxonBase<?> taxon, TaxonNode node) {
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return (taxon == null) ? node.getUuid().toString(): taxon.getTitleCache();
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}
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/**
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* @param taxon
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* @param node
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* @return
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*/
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private UUID getTaxonUuid(TaxonBase<?> taxon, TaxonNode node) {
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return (taxon == null) ? node.getUuid(): taxon.getUuid();
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}
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}
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