001// Copyright 2009 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; 021 022import java.text.ParseException; 023 024/** 025 * Uses a {@link org.apache.tapestry5.internal.translator.NumericTranslatorSupport} to provide proper locale-aware 026 * support for all the built-in numeric types. 027 * 028 * @since 5.1.0.1 029 */ 030public class NumericTranslator<T extends Number> extends AbstractTranslator<T> 031{ 032 private final NumericTranslatorSupport support; 033 034 public NumericTranslator(String name, Class<T> type, NumericTranslatorSupport support) 035 { 036 super(name, type, support.getMessageKey(type)); 037 038 this.support = support; 039 } 040 041 public void render(Field field, String message, MarkupWriter writer, FormSupport formSupport) 042 { 043 if (formSupport.isClientValidationEnabled()) 044 support.addValidation(getType(), field, message); 045 } 046 047 public T parseClient(Field field, String clientValue, String message) throws ValidationException 048 { 049 try 050 { 051 return support.parseClient(getType(), clientValue); 052 } 053 catch (ParseException ex) 054 { 055 throw new ValidationException(message); 056 } 057 } 058 059 public String toClient(T value) 060 { 061 return support.toClient(getType(), value); 062 } 063}