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. 014 015 package org.apache.tapestry5.internal.translator; 016 017 import java.text.DecimalFormatSymbols; 018 import java.text.ParseException; 019 020 /** 021 * Base class for parsing/formatting BigInteger and BigDecimal. 022 * 023 * @since 5.1.0.1 024 */ 025 public abstract class BigTypesFormatter implements NumericFormatter 026 { 027 protected final DecimalFormatSymbols symbols; 028 029 public BigTypesFormatter(DecimalFormatSymbols symbols) 030 { 031 this.symbols = symbols; 032 } 033 034 protected String toString(char ch) 035 { 036 return String.valueOf(ch); 037 } 038 039 public String toClient(Number value) 040 { 041 String normal = value.toString(); 042 043 // When formatting integers, we don't use the grouping seperator. 044 045 return normal.replace('-', symbols.getMinusSign()).replace('.', symbols.getDecimalSeparator()); 046 } 047 048 public Number parse(String clientValue) throws ParseException 049 { 050 // Allow for " " here since FF2/IE replaces \u00A0 (non breaking space) with \u0020 (normal space) 051 String noGroups = clientValue.replace(toString(symbols.getGroupingSeparator()), "").replace(" ", ""); 052 String fixedNeg = noGroups.replace(symbols.getMinusSign(), '-'); 053 String fixedDec = fixedNeg.replace(symbols.getDecimalSeparator(), '.'); 054 055 try 056 { 057 return parseConvertedValue(fixedDec); 058 } 059 catch (NumberFormatException ex) 060 { 061 throw new ParseException(ex.getMessage(), 0); 062 } 063 } 064 065 protected abstract Number parseConvertedValue(String converted); 066 }