com.asakusafw.directio.hive.util

Class TemporalUtil

java.lang.Object

com.asakusafw.directio.hive.util.TemporalUtil

public final class TemporalUtil
extends Object

date and date-time utilities.

Since:

0.7.0

Version:

0.7.4

Field Summary

Fields

Modifier and Type	Field and Description
static int	DATE_EPOCH_OFFSET The day number of the epoch date.

Method Summary

Modifier and Type	Method and Description
static int	getDaysSinceEpoch(Date date) Returns the day number since the epoch date.
static int	getJulianDayNumber(Date date) Returns the Julian day number of the date.
static int	getJulianDayNumber(DateTime dateTime) Returns the Julian day number of the date time.
static long	getTimeOfDayNanos(Date date) Returns the nano time of the julian day.
static long	getTimeOfDayNanos(DateTime dateTime) Returns the nano time of the julian day.
static int	parseDate(String value) Parses a date value.
static long	parseTimestamp(String value) Parses a timestamp value.
static String	toDateString(int elapsedDays) Returns a string representation of Date.
static int	toElapsedDays(int daysSinceEpoch) Returns the elapsed days from the epoch date.
static long	toElapsedSeconds(int julianDayNumber, long nanoTime) Returns the elapsed days from Julian day.
static String	toTimestampString(long elapsedSeconds) Returns a string representation of DateTime.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DATE_EPOCH_OFFSET

public static final int DATE_EPOCH_OFFSET

The day number of the epoch date.

Since:

0.7.4

Method Detail

parseDate

public static int parseDate(String value)

Parses a date value.

Parameters:

value - the date value

Returns:

the days for Date object

parseTimestamp

public static long parseTimestamp(String value)

Parses a timestamp value.

Parameters:

value - the timestamp value

Returns:

the seconds for DateTime object

toDateString

public static String toDateString(int elapsedDays)

Returns a string representation of Date.

Parameters:

elapsedDays - the elapsed days from 0001/01/01

Returns:

string representation

toTimestampString

public static String toTimestampString(long elapsedSeconds)

Returns a string representation of DateTime.

Parameters:

elapsedSeconds - the elapsed seconds from 0001/01/01 00:00:00

Returns:

string representation

getJulianDayNumber

public static int getJulianDayNumber(Date date)

Returns the Julian day number of the date.

Parameters:

date - the date

Returns:

the Julian day number

Since:

0.7.2

getTimeOfDayNanos

public static long getTimeOfDayNanos(Date date)

Returns the nano time of the julian day.

Parameters:

date - the day

Returns:

the nano time of julian day

Since:

0.7.2

getJulianDayNumber

public static int getJulianDayNumber(DateTime dateTime)

Returns the Julian day number of the date time.

Parameters:

dateTime - the date time

Returns:

the Julian day number

Since:

0.7.2

getTimeOfDayNanos

public static long getTimeOfDayNanos(DateTime dateTime)

Returns the nano time of the julian day.

Parameters:

dateTime - the date time

Returns:

the nano time of julian day

Since:

0.7.2

toElapsedSeconds

public static long toElapsedSeconds(int julianDayNumber,
                                    long nanoTime)

Returns the elapsed days from Julian day.

Parameters:

julianDayNumber - the Julian day

nanoTime - time of day in nanos

Returns:

the elapsed days

Since:

0.7.2

getDaysSinceEpoch

public static int getDaysSinceEpoch(Date date)

Returns the day number since the epoch date.

Parameters:

date - the target date

Returns:

the day number

Since:

0.7.4

See Also:

toElapsedDays(int)

toElapsedDays

public static int toElapsedDays(int daysSinceEpoch)

Returns the elapsed days from the epoch date.

Parameters:

daysSinceEpoch - the day number since epoch date

Returns:

the elapsed days

Since:

0.7.4

See Also:

getDaysSinceEpoch(Date)