com.helger.datetime.holiday.parser.impl.FixedWeekdayInMonthParser.java Source code

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Here is the source code for com.helger.datetime.holiday.parser.impl.FixedWeekdayInMonthParser.java

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/**
 * Copyright (C) 2014-2015 Philip Helger (www.helger.com)
 * philip[at]helger[dot]com
 *
 * 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 com.helger.datetime.holiday.parser.impl;

import org.joda.time.LocalDate;

import com.helger.datetime.PDTFactory;
import com.helger.datetime.holiday.HolidayMap;
import com.helger.datetime.holiday.IHolidayType;
import com.helger.datetime.holiday.ResourceBundleHoliday;
import com.helger.datetime.holiday.config.FixedWeekdayInMonth;
import com.helger.datetime.holiday.config.Holidays;
import com.helger.datetime.holiday.config.Which;
import com.helger.datetime.holiday.mgr.XMLUtil;
import com.helger.datetime.holiday.parser.AbstractHolidayParser;

/**
 * @author Sven Diedrichsen
 * @author Philip Helger
 */
public class FixedWeekdayInMonthParser extends AbstractHolidayParser {
    private static final FixedWeekdayInMonthParser s_aInstance = new FixedWeekdayInMonthParser();

    protected FixedWeekdayInMonthParser() {
    }

    public static FixedWeekdayInMonthParser getInstance() {
        return s_aInstance;
    }

    public void parse(final int nYear, final HolidayMap aHolidays, final Holidays aConfig) {
        for (final FixedWeekdayInMonth aFWM : aConfig.getFixedWeekday()) {
            if (!isValid(aFWM, nYear))
                continue;
            final LocalDate aDate = parse(nYear, aFWM);
            final IHolidayType aType = XMLUtil.getType(aFWM.getLocalizedType());
            final String sPropertyKey = aFWM.getDescriptionPropertiesKey();
            aHolidays.add(aDate, new ResourceBundleHoliday(aType, sPropertyKey));
        }
    }

    protected static LocalDate parse(final int nYear, final FixedWeekdayInMonth aFixedWeekdayInMonth) {
        LocalDate aDate = PDTFactory.createLocalDate(nYear, XMLUtil.getMonth(aFixedWeekdayInMonth.getMonth()), 1);
        int nDirection = 1;
        if (aFixedWeekdayInMonth.getWhich() == Which.LAST) {
            aDate = aDate.withDayOfMonth(aDate.dayOfMonth().getMaximumValue());
            nDirection = -1;
        }
        final int nWeekDay = XMLUtil.getWeekday(aFixedWeekdayInMonth.getWeekday());
        while (aDate.getDayOfWeek() != nWeekDay) {
            aDate = aDate.plusDays(nDirection);
        }
        switch (aFixedWeekdayInMonth.getWhich()) {
        case FIRST:
            break;
        case SECOND:
            aDate = aDate.plusDays(7);
            break;
        case THIRD:
            aDate = aDate.plusDays(14);
            break;
        case FOURTH:
            aDate = aDate.plusDays(21);
            break;
        case LAST:
            break;
        }
        return aDate;
    }
}