DateHelper.java

/*
 * Copyright (c) 2010 StockPlay development team
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package com.kapti.backend.helpers;

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

/**
 *  \brief  Hulpklasse met functies gerelateerd tot datums.
 *
 * Deze klasse biedt een aantal hulpfuncties die het gemakkelijker maken om met
 * datums om te gaan.
 */
public class DateHelper {
    /**
     * Adapt calendar to client time zone.
     * @param calendar - adapting calendar
     * @param timeZone - client time zone
     * @return adapt calendar to client time zone
     */
    public static Calendar convertCalendar(final Calendar calendar, final TimeZone timeZone) {
        Calendar ret = new GregorianCalendar(timeZone);
        ret.setTimeInMillis(calendar.getTimeInMillis()
                + timeZone.getOffset(calendar.getTimeInMillis())
                - TimeZone.getDefault().getOffset(calendar.getTimeInMillis()));
        ret.getTime();
        return ret;
    }
}