    001    //  Copyright 2008 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
    015    package org.apache.tapestry5.internal.services;
    016
    017    import org.apache.tapestry5.*;
    018    import org.apache.tapestry5.ioc.MessageFormatter;
    019    import org.apache.tapestry5.services.FormSupport;
    020
    021    public class FieldTranslatorImpl<T> implements FieldTranslator<T>
    022    {
    023        private final Field field;
    024        private final Translator<T> translator;
    025        private final MessageFormatter formatter;
    026        private final FormSupport formSupport;
    027
    028        public FieldTranslatorImpl(Field field, Translator<T> translator, MessageFormatter formatter,
    029                                   FormSupport formSupport)
    030        {
    031            this.field = field;
    032            this.translator = translator;
    033            this.formatter = formatter;
    034            this.formSupport = formSupport;
    035        }
    036
    037        public T parse(String input) throws ValidationException
    038        {
    039            return translator.parseClient(field, input, formatMessage());
    040        }
    041
    042        private String formatMessage()
    043        {
    044            return formatter.format(field.getLabel());
    045        }
    046
    047        public void render(MarkupWriter writer)
    048        {
    049            translator.render(field, formatMessage(), writer, formSupport);
    050        }
    051
    052        public String toClient(T value)
    053        {
    054            return translator.toClient(value);
    055        }
    056
    057        public Class<T> getType()
    058        {
    059            return translator.getType();
    060        }
    061    }