001/* 002 * Copyright 2002-2015 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.format.number; 018 019import java.text.DecimalFormat; 020import java.text.NumberFormat; 021import java.util.Locale; 022 023/** 024 * A formatter for number values in percent style. 025 * 026 * <p>Delegates to {@link java.text.NumberFormat#getPercentInstance(Locale)}. 027 * Configures BigDecimal parsing so there is no loss in precision. 028 * The {@link #parse(String, Locale)} routine always returns a BigDecimal. 029 * 030 * @author Keith Donald 031 * @author Juergen Hoeller 032 * @since 4.2 033 * @see #setLenient 034 */ 035public class PercentStyleFormatter extends AbstractNumberFormatter { 036 037 @Override 038 protected NumberFormat getNumberFormat(Locale locale) { 039 NumberFormat format = NumberFormat.getPercentInstance(locale); 040 if (format instanceof DecimalFormat) { 041 ((DecimalFormat) format).setParseBigDecimal(true); 042 } 043 return format; 044 } 045 046}