Java UTC Date getUTCCalendar()

Description

Retrieve an UTC Calendar.

License

Open Source License

Return

the uTC calendar

Declaration

public static Calendar getUTCCalendar() 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

public class Main {
    /** The Constant UTC_TIME_ZONE. */
    public final static TimeZone UTC_TIME_ZONE = TimeZone.getTimeZone("UTC");
    /** The Constant DATE_TIME_PATTERN. */
    public final static String DATE_TIME_PATTERN = "yyyy-MM-dd'T'HH:mm:ss'Z'";

    /**/*w  w w.jav a 2s.c  o m*/
     * Retrieve an UTC Calendar.
     *
     * @return the uTC calendar
     */
    public static Calendar getUTCCalendar() {
        return Calendar.getInstance(UTC_TIME_ZONE);
    }

    /**
     * Description goes here.
     *
     * @param date the date
     * @return the uTC calendar
     * @throws Exception the exception
     */
    public static Calendar getUTCCalendar(String date) throws Exception {
        Date parsedDate = parseDateTime(date);
        Calendar c = getUTCCalendar();
        c.setTime(parsedDate);
        return c;
    }

    /**
     * Description goes here.
     *
     * @param date the date
     * @return the date
     * @throws ParseException the parse exception
     */
    public static Date parseDateTime(String date) throws ParseException {
        if (date == null) {
            throw new NullPointerException("Provided date is null");
        }

        Date parsedDate = null;
        DateFormat dateFormat = new SimpleDateFormat(DATE_TIME_PATTERN, Locale.ENGLISH);
        dateFormat.setTimeZone(UTC_TIME_ZONE);

        try {
            parsedDate = dateFormat.parse(date);
            //         if (!sdf.getTimeZone().hasSameRules(DateUtils.UTC_TIME_ZONE)) {
            //            throw new Exception("The given date <" + date + "> is not in UTC time zone ");
            //         }
        } catch (ParseException e) {
            throw new ParseException("Impossible to parse the given string <" + date + "> into UTC date ",
                    e.getErrorOffset());
        }

        return parsedDate;
    }
}

Related

1. formatUTC(Date time)
2. formatUTC(Date time)
3. getPlatypusConainerClass(Class aLayoutClass)
4. getUTC()
5. getUTC(String beforeFormart, String afterFormart, String dateStr)
6. getUTCCalendar()
7. getUTCCalendar(Calendar value)
8. getUTCCalendarFromDialogString(String dateString)
9. getUTCDate()