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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.model;
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import eu.etaxonomy.cdm.model.common.TimePeriod;
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/**
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* <p>TimeHelper class.</p>
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*
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* @autor p.ciardelli
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* @author n.hoffmann
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* @created 18.03.2009
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* @version 1.0
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*/
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public class TimeHelper {
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/**
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* Converts a <code>String</code> whose format is either a valid year
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* or two valid years with the format "XXXX-XXXX" into a TimePeriod.
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*
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* @see #getValidYear(String yearStr)
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* @param refYear a {@link java.lang.String} object.
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* @throws java.lang.NumberFormatException if any.
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* @return a {@link eu.etaxonomy.cdm.model.common.TimePeriod} object.
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*/
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public static TimePeriod convertTimePeriod(String refYear) throws NumberFormatException {
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if (refYear == null || ("").equals(refYear)){
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return null;
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}
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TimePeriod datePublished = TimePeriod.NewInstance();
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// In case format is "xxxx-xxxx"
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String[] years = refYear.split("-");
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// Unlikely case of "xxxx-xxxx-xxxx..."
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if (years.length > 2) {
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throw new NumberFormatException();
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}
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// Set startYear
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datePublished.setStartYear(getValidYear(years[0]));
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// Format is "xxxx-xxxx"
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if (years.length == 2) {
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datePublished.setEndYear(getValidYear(years[1]));
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}
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return datePublished;
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}
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/**
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* Checks whether a <code>String</code> is a valid year between
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* 1750 and 2030. Throws a <code>NumberFormatException</code> if not.
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*
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* @param yearStr a {@link java.lang.String} object.
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* @throws java.lang.NumberFormatException if any.
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* @return a {@link java.lang.Integer} object.
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*/
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public static Integer getValidYear(String yearStr) throws NumberFormatException {
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Integer yearInt = null;
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// Try casting string - don't catch number format exception
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try {
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yearInt = new Integer(yearStr);
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} catch (ClassCastException e) {
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throw new NumberFormatException();
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}
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// Is year in valid range?
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if (yearInt < 1750 || yearInt > 2030) {
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throw new NumberFormatException();
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}
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return yearInt;
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}
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}
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