com.liferay.portal.kernel.cal.TZSRecurrence Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of com.liferay.portal.kernel Show documentation

Contains interfaces for the portal services. Interfaces are only loaded by the global class loader and are shared by all plugins.

There is a newer version: 156.0.0

Show newest version

/**
 * 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;

}