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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.DecimalFormatSymbols;
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import java.text.NumberFormat;
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import java.text.ParseException;
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import java.util.Locale;
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import org.apache.commons.lang3.StringUtils;
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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 Mar 28, 2018
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*
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*/
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public class DoubleConverter implements Converter<String, Double> {
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private static final long serialVersionUID = -8799792699785931554L;
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/**
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* {@inheritDoc}
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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(StringUtils.isBlank(value)){
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return null;
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}
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if(locale == null){
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locale = Locale.getDefault();
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}
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DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(locale);
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NumberFormat nf = NumberFormat.getNumberInstance(locale);
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String separator = symbols.getDecimalSeparator() + "";
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value = value.replaceAll("[.,;]", separator);
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try {
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return nf.parse(value).doubleValue();
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} catch (ParseException e){
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throw new ConversionException(e);
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}
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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(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(locale == null){
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locale = Locale.getDefault();
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}
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NumberFormat nf = NumberFormat.getInstance(locale);
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return nf.format(value);
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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<Double> getModelType() {
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return Double.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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