org.bardframework.commons.utils

Class DateTimeUtils

java.lang.Object

org.bardframework.commons.utils.DateTimeUtils

public final class DateTimeUtils
extends Object

Created by Vahid Zafari on 8/12/2016.

Field Summary

Fields

Modifier and Type	Field and Description
static long	YEAR_DURATION_MILLS

Method Summary

Modifier and Type	Method and Description
static LocalDateTime	dateTimeFromEpochMills(long dateTimeAsMills) Obtains an instance of LocalDateTime using milliseconds from the epoch of 1970-01-01T00:00:00Z.
static LocalDate	fromEpochMills(long dateAsMills)
static LocalDateTime	fromEpochMills(long dateTimeAsMills, ZoneId zone) Obtains an instance of LocalDateTime using milliseconds from the epoch of 1970-01-01T00:00:00Z.
static long	getNowUtcMills()
static ChronoUnit	toChronoUnit(TimeUnit unit)
static long	toEpochMills(LocalDate date) calculate milliseconds past from the epoch of 1970-01-01T00:00:00Z.
static long	toEpochMills(LocalDateTime dateTime) calculatee milliseconds past from the epoch of 1970-01-01T00:00:00Z.
static long	toEpochMills(OffsetDateTime dateTime)
static String	toLocalString(LocalDate date) convert date to string divided by '/'
static String	toLocalString(LocalDateTime dateTime) convert date to string divided by '/'
static TimeUnit	toTimeUnit(ChronoUnit unit)

Methods inherited from class java.lang.Object

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

Field Detail

YEAR_DURATION_MILLS

public static final long YEAR_DURATION_MILLS

See Also:

Constant Field Values

Method Detail

toEpochMills

public static long toEpochMills(LocalDate date)

calculate milliseconds past from the epoch of 1970-01-01T00:00:00Z.

Parameters:

date - an instance of (@code LocalDate)

Returns:

past milliseconds from 1970-01-01T00:00:00Z according (!@code date) at 23:59:59:99:999.

Throws:

IllegalArgumentException - if null date passed to method.

fromEpochMills

public static LocalDate fromEpochMills(long dateAsMills)

dateTimeFromEpochMills

public static LocalDateTime dateTimeFromEpochMills(long dateTimeAsMills)

Obtains an instance of LocalDateTime using milliseconds from the epoch of 1970-01-01T00:00:00Z.

The seconds and nanoseconds are extracted from the specified milliseconds.

Parameters:

dateTimeAsMills - the number of milliseconds after 1970-01-01T00:00:00Z

Returns:

a LocalDateTime, not null

Throws:

DateTimeException - if the instant exceeds the maximum or minimum instant

fromEpochMills

public static LocalDateTime fromEpochMills(long dateTimeAsMills,
                                           ZoneId zone)

Obtains an instance of LocalDateTime using milliseconds from the epoch of 1970-01-01T00:00:00Z.

The seconds and nanoseconds are extracted from the specified milliseconds.

Parameters:

dateTimeAsMills - the number of milliseconds from 1970-01-01T00:00:00Z.

zone - an isntance of (@code ZoneId) specify zone id for calculating LocalDateTime

Returns:

a LocalDateTime, not null

Throws:

DateTimeException - if the instant exceeds the maximum or minimum instant

IllegalArgumentException - if null zone passed to method.

toEpochMills

public static long toEpochMills(LocalDateTime dateTime)

calculatee milliseconds past from the epoch of 1970-01-01T00:00:00Z.

Parameters:

dateTime - an instance of (@code LocalDateTime)

Returns:

past milliseconds from 1970-01-01T00:00:00Z.

Throws:

IllegalArgumentException - if null dateTime passed to method.

toEpochMills

public static long toEpochMills(OffsetDateTime dateTime)

toLocalString

public static String toLocalString(LocalDateTime dateTime)

convert date to string divided by '/'

Parameters:

dateTime - the dateTime

Returns:

null if date is null, else date with 'yyyy/MM/dd HH:mm' format

toLocalString

public static String toLocalString(LocalDate date)

convert date to string divided by '/'

Parameters:

date - the dateTime

Returns:

null if date is null, else date with 'yyyy/MM/dd' format

toTimeUnit

public static TimeUnit toTimeUnit(ChronoUnit unit)

toChronoUnit

public static ChronoUnit toChronoUnit(TimeUnit unit)

getNowUtcMills

public static long getNowUtcMills()