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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.taxeditor.bulkeditor.input.sortprovider;
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import java.util.Comparator;
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import eu.etaxonomy.cdm.model.common.TimePeriod;
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import eu.etaxonomy.cdm.model.reference.Reference;
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/**
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* @author n.hoffmann
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* @created Dec 14, 2010
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* @version 1.0
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*/
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public class ReferenceSortProvider extends AbstractSortProvider<Reference> {
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/**
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*
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*/
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public ReferenceSortProvider() {
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comparators.put("Type", new ReferenceTypeComparator());
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comparators.put("Year", new ReferenceYearComparator());
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}
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private class ReferenceYearComparator implements Comparator<Reference> {
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/**
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* @param o1
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* @return
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*/
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private String getYearString(Reference o) {
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TimePeriod datePublished = o == null ? null : o.getDatePublished();
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return datePublished == null? null : datePublished.toString();
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}
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/* (non-Javadoc)
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* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
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*/
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@Override
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public int compare(Reference o1, Reference o2) {
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String yearString1 = getYearString(o1);
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String yearString2 = getYearString(o2);
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if (yearString1 == null) {
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if (yearString2 == null) {
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return 0;
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} else {
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return -1;
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}
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}
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if (yearString2 == null) {
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return 1;
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}
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int returnVal = yearString1.compareToIgnoreCase(yearString2);
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if (returnVal == 0) {
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returnVal = new TitleCacheComparator<Reference>().compare(o1, o2);
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}
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return returnVal;
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}
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}
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private class ReferenceTypeComparator implements Comparator<Reference> {
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/* (non-Javadoc)
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* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
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*/
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@Override
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public int compare(Reference o1, Reference o2) {
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String typeString1 = o1.getClass().toString();
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String typeString2 = o2.getClass().toString();
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if (typeString1 == null) {
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if (typeString2 == null) {
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return 0;
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} else {
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return -1;
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}
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}
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if (typeString2 == null) {
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return 1;
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}
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int returnVal = typeString1.compareToIgnoreCase(typeString2);
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if (returnVal == 0) {
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//the TitleCacheComparator already fulfills the comparator contract
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return new TitleCacheComparator<Reference>().compare(o1, o2);
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} else {
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return returnVal;
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}
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}
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}
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}
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