/**
* 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.FixedWeekdayInMonth;
import de.jollyday.config.Holidays;
import de.jollyday.config.Which;
import de.jollyday.parser.AbstractHolidayParser;
/**
* The Class FixedWeekdayInMonthParser.
*
* @author tboven
* @version $Id: $
*/
public class FixedWeekdayInMonthParser extends AbstractHolidayParser {
/*
* (non-Javadoc)
*
* @see de.jollyday.parser.HolidayParser#parse(int, java.util.Set,
* de.jollyday.config.Holidays)
*/
/** {@inheritDoc} */
public void parse(int year, Set<Holiday> holidays, final Holidays config) {
for (FixedWeekdayInMonth fwm : config.getFixedWeekday()) {
if (!isValid(fwm, year)) {
continue;
}
LocalDate date = parse(year, fwm);
HolidayType type = xmlUtil.getType(fwm.getLocalizedType());
holidays.add(new Holiday(date, fwm.getDescriptionPropertiesKey(), type));
}
}
/**
* Parses the {@link FixedWeekdayInMonth}.
*
* @param year
* the year
* @param fwm
* the fwm
* @return the local date
*/
protected LocalDate parse(int year, FixedWeekdayInMonth fwm) {
LocalDate date = calendarUtil.create(year, xmlUtil.getMonth(fwm.getMonth()), 1);
int direction = 1;
if (fwm.getWhich() == Which.LAST) {
date = date.withDayOfMonth(date.dayOfMonth().getMaximumValue());
direction = -1;
}
date = moveToNextRequestedWeekdayByDirection(fwm, date, direction);
date = moveNumberOfRequestedWeeks(fwm, date);
return date;
}
private LocalDate moveNumberOfRequestedWeeks(FixedWeekdayInMonth fwm, LocalDate date) {
switch (fwm.getWhich()) {
case SECOND:
date = date.plusDays(7);
break;
case THIRD:
date = date.plusDays(14);
break;
case FOURTH:
date = date.plusDays(21);
}
return date;
}
private LocalDate moveToNextRequestedWeekdayByDirection(FixedWeekdayInMonth fwm, LocalDate date, int direction) {
int weekDay = xmlUtil.getWeekday(fwm.getWeekday());
while (date.getDayOfWeek() != weekDay) {
date = date.plusDays(direction);
}
return date;
}
}