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/**
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* Copyright (C) 2018 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.text.ParseException;
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import java.util.Locale;
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import org.apache.logging.log4j.LogManager;
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import com.vaadin.data.Validator;
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import com.vaadin.data.util.converter.Converter;
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import eu.etaxonomy.cdm.model.location.Point;
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import eu.etaxonomy.cdm.model.location.Point.Sexagesimal;
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/**
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* Converts longitute and latitute string representations into
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* double values. At the same time this class can be used as Validator.
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*
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* @author a.kohlbecker
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* @since Nov 20, 2018
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*
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*/
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public class GeoLocationConverterValidator implements Converter<String, Double>, Validator {
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public enum Axis {
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LONGITUDE, LATITUDE;
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}
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private static final long serialVersionUID = -1780028474672132160L;
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private Axis axis;
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public GeoLocationConverterValidator(Axis axis){
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this.axis = axis;
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}
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@Override
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public Double convertToModel(String value, Class<? extends Double> targetType, Locale locale)
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throws com.vaadin.data.util.converter.Converter.ConversionException {
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if(value == null){
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return null;
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}
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try {
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if(axis == Axis.LONGITUDE){
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return Point.parseLongitude(value);
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} else {
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return Point.parseLatitude(value);
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}
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} catch (ParseException e) {
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LogManager.getLogger(getClass()).error(e);
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throw new ConversionException(e);
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}
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}
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@Override
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public String convertToPresentation(Double value, Class<? extends String> targetType, Locale locale)
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throws com.vaadin.data.util.converter.Converter.ConversionException {
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if(value == null){
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return null;
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}
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if(axis == Axis.LONGITUDE){
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return Sexagesimal.valueOf(value, false).toString();
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} else {
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return Sexagesimal.valueOf(value, true).toString();
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}
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}
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@Override
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public Class<Double> getModelType() {
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return Double.class;
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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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* {@inheritDoc}
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*/
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@Override
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public void validate(Object value) throws InvalidValueException {
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if(value != null && value instanceof String && !((String)value).isEmpty()){
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try {
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convertToModel((String)value, Double.class, null);
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} catch (com.vaadin.data.util.converter.Converter.ConversionException e) {
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throw new InvalidValueException("Invalid " + axis.name().toLowerCase());
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}
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}
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}
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}
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