Example usage for java.time ZoneId systemDefault

Introduction

In this page you can find the example usage for java.time ZoneId systemDefault.

Prototype

public static ZoneId systemDefault()

Source Link

Document

Gets the system default time-zone.

Usage

From source file:Main.java

public static LocalDate toLocalDate(Date date) {
    Date lDate = new Date(date.getTime());
    return lDate.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
}

From source file:Main.java

public static LocalDate getLocalDateFromDate(Date date) {
    return LocalDateTime.ofInstant(new Date(date.getTime()).toInstant(), ZoneId.systemDefault()).toLocalDate();
}

From source file:Main.java

/**
 * Checks if the type of the given date. Possible return values are standard
 * time, the date when to switch to daylight saving time (in Europe the last
 * Sunday in March), daylight saving time or the date when to switch back to
 * standard time (in Europe the last Sunday in October).
 * /*from  www. java  2s.c  om*/
 * @return DayType
 * @param cal
 *          Date to check, cannot be null
 */
public static DayType getDSTType(LocalDate cal) {
    DayType status = DayType.DAYLIGHT_SAVING_TIME;
    LocalDateTime testDate = cal.atStartOfDay();
    ZonedDateTime zdt = ZonedDateTime.of(testDate, ZoneId.systemDefault());
    // Find type of day
    if (zdt.getZone().getRules().isDaylightSavings(testDate.toInstant(zdt.getOffset())))
        status = DayType.DAYLIGHT_SAVING_TIME;
    else
        status = DayType.STANDARD_TIME;
    // Check the day after
    testDate = testDate.plusDays(1);
    zdt = ZonedDateTime.of(testDate, ZoneId.systemDefault());
    // Find type of day after
    if (zdt.getZone().getRules().isDaylightSavings(testDate.toInstant(zdt.getOffset()))) {
        if (status != DayType.DAYLIGHT_SAVING_TIME)
            status = DayType.TO_DAYLIGHT_SAVING_TIME;
    } else {
        if (status == DayType.DAYLIGHT_SAVING_TIME)
            status = DayType.TO_STANDARD_TIME;
    }
    return status;
}

From source file:org.openhab.binding.gardena.internal.util.DateUtils.java

/**
 * Converts a string to a Date, trying different date formats used by Gardena.
 *//*from ww w.j  a  va 2s . c  o  m*/
public static Date parseToDate(String text) {
    if (StringUtils.isNotBlank(text)) {
        Date parsedDate = null;
        for (String dateFormat : dateFormats) {
            try {
                parsedDate = new SimpleDateFormat(dateFormat).parse(text);
                ZonedDateTime gmt = ZonedDateTime.ofInstant(parsedDate.toInstant(), ZoneOffset.UTC);
                LocalDateTime here = gmt.withZoneSameInstant(ZoneId.systemDefault()).toLocalDateTime();
                parsedDate = Date.from(here.toInstant(ZoneOffset.UTC));
                break;
            } catch (ParseException ex) {
            }
        }
        if (parsedDate == null) {
            LOGGER.error("Can't parse date {}", text);
        }
        return parsedDate;
    } else {
        return null;
    }

}

From source file:org.pr.nb.clocks.model.NBClock.java

public NBClock(String zoneId) {
    this.zoneId = ZoneId.of(zoneId, ZoneId.SHORT_IDS);
    zoneDateTime = ZonedDateTime.now(this.zoneId);
    homeZone = StringUtils.equals(zoneId, ZoneId.systemDefault().getId());
}

From source file:org.eclipse.smarthome.core.scheduler.CronHelper.java

/**
 * Returns CRON expression from the provided {@link Calendar} instance
 *
 * @param calendar the {@link Calendar} instance
 * @return the CRON expression//from w w  w  . j a  v a 2 s  . c  o m
 * @throws NullPointerException
 *             if {@code calendar} is null
 */
public static String createCronFromCalendar(Calendar calendar) {
    requireNonNull(calendar, "Calendar instance cannot be null");
    LocalDateTime temporal = LocalDateTime.ofInstant(calendar.toInstant(), ZoneId.systemDefault());
    return createCronFromTemporal(temporal);
}

From source file:eu.hansolo.tilesfx.weather.Sun.java

/**
 * Returns an array of ZonedDateTime objects for sunrise and sunset in UTC. Means there
 * are no daylight saving time adjustments.
 * @param LATITUDE//from  w  w  w .j  a va2s .com
 * @param LONGITUDE
 * @return an array of ZonedDateTime objects for sunrise and sunset in UTC.
 */
public static ZonedDateTime[] getSunriseSunsetAt(final double LATITUDE, final double LONGITUDE) {
    return getSunriseSunsetAt(LATITUDE, LONGITUDE, ZoneId.systemDefault());
}

From source file:com.ewerk.prototype.persistence.converters.DateToLocalDateConverter.java

@Override
public LocalDate convert(Date source) {
    if (source == null) {
        return null;
    }/*from   w w w.  j a  va2  s .c  o  m*/
    return source.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
}

From source file:defaultmethods.TimeClient.java

static ZoneId getZoneId(String zoneString) {
    try {// ww w. j ava  2 s .  c  o  m
        return ZoneId.of(zoneString);
    } catch (DateTimeException e) {
        System.err.println("Invalid time zone: " + zoneString + "; using default time zone instead.");
        return ZoneId.systemDefault();
    }
}

From source file:com.ewerk.prototype.persistence.converters.LocalDateToDateConverter.java

@Override
public Date convert(LocalDate localDate) {
    if (localDate == null) {
        return null;
    }//from   www  .  j a v a 2 s . c  o  m
    return Date.from(localDate.atStartOfDay(ZoneId.systemDefault()).toInstant());
}