com.liferay.portal.kernel.cal.TZSRecurrence.java Source code

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Here is the source code for com.liferay.portal.kernel.cal.TZSRecurrence.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.cal;

import com.liferay.portal.kernel.util.TimeZoneUtil;

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;

/**
 * @author Samuel Kong
 * @author Angelo Jefferson
 */
public class TZSRecurrence extends Recurrence {

    public TZSRecurrence() {
    }

    public TZSRecurrence(Calendar startCalendar, Duration duration) {
        super(startCalendar, duration);
    }

    public TZSRecurrence(Calendar startCalendar, Duration duration, int frequency) {

        super(startCalendar, duration, frequency);
    }

    public TimeZone getTimeZone() {
        return _timeZone;
    }

    public void setTimeZone(TimeZone timeZone) {
        if (timeZone == null) {
            _timeZone = null;
        } else {
            _timeZone = TimeZoneUtil.getTimeZone(timeZone.getID());
        }
    }

    protected Calendar getAdjustedCalendar(Calendar candidateCalendar) {
        if (_timeZone == null) {
            return candidateCalendar;
        }

        Calendar adjustedCalendar = new GregorianCalendar(_timeZone);

        Date candidateDate = candidateCalendar.getTime();

        long dailightSavingsTimeDelta = _timeZone.getOffset(candidateCalendar.getTimeInMillis())
                - _timeZone.getOffset(dtStart.getTimeInMillis());

        adjustedCalendar.setTimeInMillis(candidateDate.getTime() - dailightSavingsTimeDelta);

        return adjustedCalendar;
    }

    @Override
    protected boolean matchesByField(int[] array, int field, Calendar candidateCalendar, boolean allowNegative) {

        Calendar adjustedCandidate = getAdjustedCalendar(candidateCalendar);

        return super.matchesByField(array, field, adjustedCandidate, allowNegative);
    }

    @Override
    protected boolean matchesByMonth(Calendar candidateCalendar) {
        return matchesByField(byMonth, Calendar.MONTH, candidateCalendar, false);
    }

    @Override
    protected boolean matchesByMonthDay(Calendar candidateCalendar) {
        return matchesByField(byMonthDay, Calendar.DATE, candidateCalendar, true);
    }

    @Override
    protected boolean matchesByWeekNo(Calendar candidateCalendar) {
        return matchesByField(byWeekNo, Calendar.WEEK_OF_YEAR, candidateCalendar, true);
    }

    @Override
    protected boolean matchesByYearDay(Calendar candidateCalendar) {
        return matchesByField(byYearDay, Calendar.DAY_OF_YEAR, candidateCalendar, true);
    }

    @Override
    protected boolean matchesIndividualByDay(Calendar candidateCalendar, DayAndPosition dayAndPosition) {

        Calendar adjustedCandidate = getAdjustedCalendar(candidateCalendar);

        return super.matchesIndividualByDay(adjustedCandidate, dayAndPosition);
    }

    private TimeZone _timeZone;

}