/**
* Copyright 2010 Sven Diedrichsen
*
* 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 de.jollyday.parser.impl;
import java.util.Set;
import org.joda.time.LocalDate;
import de.jollyday.Holiday;
import de.jollyday.HolidayType;
import de.jollyday.config.FixedWeekdayRelativeToFixed;
import de.jollyday.config.Holidays;
import de.jollyday.config.When;
import de.jollyday.parser.AbstractHolidayParser;
/**
* Parses fixed weekday relative to fixed date.
*
* @author Sven Diedrichsen
* @version $Id: $
*/
public class FixedWeekdayRelativeToFixedParser extends AbstractHolidayParser {
/**
* {@inheritDoc}
*
* Parses the provided configuration and creates holidays for the provided
* year.
*/
public void parse(int year, Set<Holiday> holidays, final Holidays config) {
for (FixedWeekdayRelativeToFixed f : config.getFixedWeekdayRelativeToFixed()) {
if (!isValid(f, year)) {
continue;
}
LocalDate day = calendarUtil.create(year, f.getDay());
day = moveDateToFirstOccurenceOfWeekday(f, day);
int days = determineNumberOfDays(f);
day = f.getWhen() == When.AFTER ? day.plusDays(days) : day.minusDays(days);
HolidayType type = xmlUtil.getType(f.getLocalizedType());
holidays.add(new Holiday(day, f.getDescriptionPropertiesKey(), type));
}
}
private LocalDate moveDateToFirstOccurenceOfWeekday(FixedWeekdayRelativeToFixed f, LocalDate day) {
do {
// move fixed to first occurrence of weekday
day = f.getWhen() == When.AFTER ? day.plusDays(1) : day.minusDays(1);
} while (day.getDayOfWeek() != xmlUtil.getWeekday(f.getWeekday()));
return day;
}
private int determineNumberOfDays(FixedWeekdayRelativeToFixed f) {
int days = 0;
switch (f.getWhich()) {
case SECOND:
days = 7;
break;
case THIRD:
days = 14;
break;
case FOURTH:
days = 21;
break;
}
return days;
}
}