/*
* Copyright 2005-2010 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.dozer.converters;
import org.apache.commons.beanutils.Converter;
import javax.xml.datatype.XMLGregorianCalendar;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
/**
* Internal class for converting Supported Data Types --> Calendar. Supported source data types include Date, Calendar,
* String, Objects that return a long from their toString(). Only intended for internal use.
*
* @author tierney.matt
*/
public class CalendarConverter implements Converter {
private DateFormat dateFormat;
public CalendarConverter(DateFormat dateFormat) {
this.dateFormat = dateFormat;
}
public Object convert(Class destClass, Object srcObj) {
Calendar result = new GregorianCalendar();
Class srcFieldClass = srcObj.getClass();
// Convert from Date to Calendar
if (java.util.Date.class.isAssignableFrom(srcFieldClass)) {
result.setTime((java.util.Date) srcObj);
}
// Convert from Calendar to Calendar
else if (Calendar.class.isAssignableFrom(srcFieldClass)) {
Calendar c = (Calendar) srcObj;
result.setTime(c.getTime());
result.setTimeZone(c.getTimeZone());
} else if (XMLGregorianCalendar.class.isAssignableFrom(srcFieldClass)) {
Calendar c = ((XMLGregorianCalendar) srcObj).toGregorianCalendar();
result.setTime(c.getTime());
result.setTimeZone(c.getTimeZone());
}
// String to Calendar
else if (dateFormat != null && String.class.isAssignableFrom(srcFieldClass)) {
try {
result.setTime(new Date(dateFormat.parse((String) srcObj).getTime()));
} catch (ParseException e) {
throw new ConversionException("Unable to parse source object using specified date format", e);
}
// Default conversion
} else {
try {
result.setTime(new Date(Long.parseLong(srcObj.toString())));
} catch (NumberFormatException e) {
throw new ConversionException("Unable to determine time in millis of source object", e);
}
}
return result;
}
public DateFormat getDateFormat() {
return dateFormat;
}
}