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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 com.vaadin.data.util.converter.Converter;
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/**
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* Creates a link from the values in the column.
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*
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* @author a.kohlbecker
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* @since Mar 7, 2017
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*
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*/
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public final class UrlStringConverter implements Converter<String, String> {
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private String regex = null;
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private String replacement = "";
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public UrlStringConverter() {
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}
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/**
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* @param regex Regular expression for creating an alternative label by string replacement on the value.
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* This is optional. No string replacement will be done when this is <code>null</code>.
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*/
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public UrlStringConverter(String regex) {
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this(regex, null);
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}
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/**
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* @param regex Regular expression for creating an alternative label by string replacement on the value.
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* This is optional. No string replacement will be done when this is <code>null</code>.
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* @param replacement The replacement to be used with the <code>regex</code>.
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* Defaults to an empty string when null.
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*/
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public UrlStringConverter(String regex, String replacement) {
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this.regex = regex;
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if(replacement != null){
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this.replacement = replacement;
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}
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}
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@Override
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public String convertToModel(String value, Class<? extends String> targetType, Locale locale)
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throws com.vaadin.data.util.converter.Converter.ConversionException {
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return null;
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}
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@Override
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public String convertToPresentation(String value, Class<? extends String> targetType, Locale locale)
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throws com.vaadin.data.util.converter.Converter.ConversionException {
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String label = value;
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if(regex != null){
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label = label.replace(regex, replacement);
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}
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return "<a href=\"" + value + "\" target=\"external\">" + label + "</a>";
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}
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@Override
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public Class<String> getModelType() {
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return String.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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