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/* * Copyright 2002-2017 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.format.number; import java.util.Set; import org.springframework.context.support.EmbeddedValueResolutionSupport; import org.springframework.format.AnnotationFormatterFactory; import org.springframework.format.Formatter; import org.springframework.format.Parser; import org.springframework.format.Printer; import org.springframework.format.annotation.NumberFormat; import org.springframework.format.annotation.NumberFormat.Style; import org.springframework.util.NumberUtils; import org.springframework.util.StringUtils; /** * Formats fields annotated with the {@link NumberFormat} annotation. * * @author Keith Donald * @author Juergen Hoeller * @since 3.0 * @see NumberFormat */ public class NumberFormatAnnotationFormatterFactory extends EmbeddedValueResolutionSupport implements AnnotationFormatterFactory<NumberFormat> { @Override public Set<Class<?>> getFieldTypes() { return NumberUtils.STANDARD_NUMBER_TYPES; } @Override public Printer<Number> getPrinter(NumberFormat annotation, Class<?> fieldType) { return configureFormatterFrom(annotation); } @Override public Parser<Number> getParser(NumberFormat annotation, Class<?> fieldType) { return configureFormatterFrom(annotation); } private Formatter<Number> configureFormatterFrom(NumberFormat annotation) { String pattern = resolveEmbeddedValue(annotation.pattern()); if (StringUtils.hasLength(pattern)) { return new NumberStyleFormatter(pattern); } else { Style style = annotation.style(); if (style == Style.CURRENCY) { return new CurrencyStyleFormatter(); } else if (style == Style.PERCENT) { return new PercentStyleFormatter(); } else { return new NumberStyleFormatter(); } } } }