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/**
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* Copyright (C) 2017 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.vaadin.util.converter;
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import java.util.Locale;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.apache.commons.lang.StringUtils;
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import org.joda.time.DateTimeFieldType;
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import org.joda.time.Partial;
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import com.vaadin.data.util.converter.Converter;
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/**
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* @author a.kohlbecker
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* @since Apr 7, 2017
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*
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*/
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public class JodaTimePartialConverter implements Converter<String, Partial> {
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private static final long serialVersionUID = 976413549472527584L;
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static final String GLUE = "-";
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Pattern partialPattern = Pattern.compile("^(?<year>(?:[1,2][7,8,9,0,1])?[0-9]{2})(?:-(?<month>[0-1]?[0-9])(?:-(?<day>[0-3]?[0-9]))?)?$");
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/**
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*
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*/
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public JodaTimePartialConverter() {
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super();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Partial convertToModel(String value, Class<? extends Partial> targetType, Locale locale)
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throws com.vaadin.data.util.converter.Converter.ConversionException {
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Partial partial = null;
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if(value != null){
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partial = new Partial();
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Matcher m = partialPattern.matcher(value);
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if(m.matches()){
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try {
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try {
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partial.with(DateTimeFieldType.year(), Integer.parseInt(m.group("year")));
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} catch (IllegalArgumentException e) {
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// a valid year should be present here
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throw new ConversionException(e);
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}
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try {
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partial.with(DateTimeFieldType.monthOfYear(), Integer.parseInt(m.group("month")));
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try {
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partial.with(DateTimeFieldType.dayOfMonth(), Integer.parseInt(m.group("day")));
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} catch (IllegalArgumentException e) {
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/* IGNORE days are not required */
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}
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} catch (IllegalArgumentException e) {
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/* IGNORE months are not required */
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}
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} catch (NumberFormatException ne) {
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// all numbers should be parsable, this is guaranteed by the partialPattern
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throw new ConversionException(ne);
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}
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}
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}
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return partial;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String convertToPresentation(Partial value, Class<? extends String> targetType, Locale locale)
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throws com.vaadin.data.util.converter.Converter.ConversionException {
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StringBuffer sb = new StringBuffer();
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if(value != null){
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try {
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sb.append(value.get(DateTimeFieldType.year()));
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try {
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String month = StringUtils.leftPad(Integer.toString((value.get(DateTimeFieldType.monthOfYear()))), 2, "0");
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sb.append(GLUE).append(month);
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try {
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String day = StringUtils.leftPad(Integer.toString((value.get(DateTimeFieldType.dayOfMonth()))), 2, "0");
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sb.append(GLUE).append(day);
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} catch (IllegalArgumentException e){
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/* IGNORE */
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}
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} catch (IllegalArgumentException e){
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/* IGNORE */
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}
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} catch (IllegalArgumentException e){
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/* IGNORE */
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}
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}
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return sb.toString();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Class<Partial> getModelType() {
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return Partial.class;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Class<String> getPresentationType() {
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return String.class;
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}
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}
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