001// Copyright 2009, 2012, 2014 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.internal.translator;
016
017import org.apache.tapestry5.Field;
018import org.apache.tapestry5.MarkupWriter;
019import org.apache.tapestry5.ValidationException;
020import org.apache.tapestry5.services.FormSupport;
021import org.apache.tapestry5.services.Html5Support;
022
023import java.text.ParseException;
024
025/**
026 * Uses a {@link org.apache.tapestry5.internal.translator.NumericTranslatorSupport} to provide proper locale-aware
027 * support for all the built-in numeric types.
028 *
029 * @since 5.1.0.1
030 */
031public class NumericTranslator<T extends Number> extends AbstractTranslator<T>
032{
033    private final NumericTranslatorSupport support;
034    private final Html5Support html5Support;
035
036    public NumericTranslator(String name, Class<T> type, NumericTranslatorSupport support, Html5Support html5Support)
037    {
038        super(name, type, support.getMessageKey(type));
039
040        this.support = support;
041        this.html5Support = html5Support;
042    }
043
044    public void render(Field field, String message, MarkupWriter writer, FormSupport formSupport)
045    {
046        if (formSupport.isClientValidationEnabled())
047        {
048            support.setupTranslation(getType(), writer.getElement(), message);
049        }
050        if (html5Support.isHtml5SupportEnabled())
051        {
052            writer.getElement().forceAttributes("type", "number");
053        }
054    }
055
056    public T parseClient(Field field, String clientValue, String message) throws ValidationException
057    {
058        try
059        {
060            return support.parseClient(getType(), clientValue);
061        } catch (ParseException ex)
062        {
063            throw new ValidationException(message);
064        }
065    }
066
067    public String toClient(T value)
068    {
069        return support.toClient(getType(), value);
070    }
071}