001/* 002 * Copyright 2002-2014 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.datetime; 018 019import java.util.Calendar; 020import java.util.Collections; 021import java.util.Date; 022import java.util.HashSet; 023import java.util.Set; 024 025import org.springframework.context.support.EmbeddedValueResolutionSupport; 026import org.springframework.format.AnnotationFormatterFactory; 027import org.springframework.format.Formatter; 028import org.springframework.format.Parser; 029import org.springframework.format.Printer; 030import org.springframework.format.annotation.DateTimeFormat; 031 032/** 033 * Formats fields annotated with the {@link DateTimeFormat} annotation using a {@link DateFormatter}. 034 * 035 * @author Phillip Webb 036 * @since 3.2 037 * @see org.springframework.format.datetime.joda.JodaDateTimeFormatAnnotationFormatterFactory 038 */ 039public class DateTimeFormatAnnotationFormatterFactory extends EmbeddedValueResolutionSupport 040 implements AnnotationFormatterFactory<DateTimeFormat> { 041 042 private static final Set<Class<?>> FIELD_TYPES; 043 044 static { 045 Set<Class<?>> fieldTypes = new HashSet<Class<?>>(4); 046 fieldTypes.add(Date.class); 047 fieldTypes.add(Calendar.class); 048 fieldTypes.add(Long.class); 049 FIELD_TYPES = Collections.unmodifiableSet(fieldTypes); 050 } 051 052 053 @Override 054 public Set<Class<?>> getFieldTypes() { 055 return FIELD_TYPES; 056 } 057 058 @Override 059 public Printer<?> getPrinter(DateTimeFormat annotation, Class<?> fieldType) { 060 return getFormatter(annotation, fieldType); 061 } 062 063 @Override 064 public Parser<?> getParser(DateTimeFormat annotation, Class<?> fieldType) { 065 return getFormatter(annotation, fieldType); 066 } 067 068 protected Formatter<Date> getFormatter(DateTimeFormat annotation, Class<?> fieldType) { 069 DateFormatter formatter = new DateFormatter(); 070 formatter.setStylePattern(resolveEmbeddedValue(annotation.style())); 071 formatter.setIso(annotation.iso()); 072 formatter.setPattern(resolveEmbeddedValue(annotation.pattern())); 073 return formatter; 074 } 075 076}