/*
* Copyright 2011 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
*
* http://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.modelmapper.internal.converter;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
import org.modelmapper.internal.Errors;
import org.modelmapper.spi.ConditionalConverter;
import org.modelmapper.spi.MappingContext;
/**
* Converts:
*
* <ul>
* <li>Date (and subclasses)</li>
* <li>Calendar (and subclasses)</li>
* <li>XMLGregorianCalendar</li>
* <li>Long</li>
* </ul>
*
* instances to destination instances of:
*
* <ul>
* <li>java.util.Calendar</li>
* <li>javax.xml.datatype.XMLGregorianCalendar</li>
* </ul>
*
* @author Jonathan Halterman
*/
class CalendarConverter implements ConditionalConverter<Object, Object> {
private static DatatypeFactory dataTypeFactory;
private static DatatypeFactory getDataTypeFactory() {
if (dataTypeFactory == null) {
try {
dataTypeFactory = DatatypeFactory.newInstance();
} catch (DatatypeConfigurationException e) {
throw new Errors().addMessage(e,
"Failed to create DataTypeFactory required for XMLGregorianCalendar conversion")
.toMappingException();
}
}
return dataTypeFactory;
}
public Object convert(MappingContext<Object, Object> context) {
Object source = context.getSource();
if (source == null)
return null;
Class<?> destinationType = context.getDestinationType();
if (!Calendar.class.isAssignableFrom(destinationType)
&& !destinationType.equals(XMLGregorianCalendar.class))
throw new Errors().errorMapping(source, destinationType).toMappingException();
GregorianCalendar calendar = new GregorianCalendar();
if (source instanceof Date)
calendar.setTimeInMillis(((Date) source).getTime());
else if (source instanceof Calendar) {
Calendar cal = (Calendar) source;
calendar.setTimeZone(cal.getTimeZone());
calendar.setTimeInMillis(cal.getTime().getTime());
} else if (source instanceof XMLGregorianCalendar) {
XMLGregorianCalendar xmlCal = (XMLGregorianCalendar) source;
GregorianCalendar cal = xmlCal.toGregorianCalendar();
calendar.setTimeZone(cal.getTimeZone());
calendar.setTimeInMillis(cal.getTime().getTime());
} else if (source instanceof Long)
calendar.setTimeInMillis(((Long) source).longValue());
return destinationType.equals(XMLGregorianCalendar.class) ? getDataTypeFactory().newXMLGregorianCalendar(
calendar)
: calendar;
}
public MatchResult match(Class<?> sourceType, Class<?> destinationType) {
return (Calendar.class.isAssignableFrom(destinationType) || destinationType == XMLGregorianCalendar.class)
&& (Date.class.isAssignableFrom(sourceType) || Calendar.class.isAssignableFrom(sourceType)
|| sourceType == XMLGregorianCalendar.class || sourceType == Long.class || sourceType == Long.TYPE) ? MatchResult.FULL
: MatchResult.NONE;
}
}