com.pervasive.datarush.tokens.scalar

Class DateTimeUtils

java.lang.Object

com.pervasive.datarush.tokens.scalar.DateTimeUtils

public class DateTimeUtils
extends Object

Utilities for working with date/time values.

Field Summary

Fields

Modifier and Type	Field and Description
static TimeZone	CST_TIMEZONE
static TimeZone	LOCALTZ Deprecated.

Method Summary

Modifier and Type	Method and Description
static long	epochDaysToMillis(long epochDays, TimeZone tz) Gets the instant in time at midnight in the specified time zone corresponding to the given date.
static String	format(DateValued value) Converts a date value into an ISO8601 date formatted string.
static String	format(TimestampValued value) Converts a time stamp value into an ISO8601 time stamp formatted string.
static String	format(TimeValued value) Converts a time of day value into an ISO8601 time formatted string.
static String	formatDaysSinceEpoch(long epochDays) Converts a date, expressed as days, into an ISO8601 date formatted string.
static String	formatEpochTime(long seconds, int nanos, int offsetSecs) Converts a time stamp, expressed as component values, into an ISO8601 time stamp formatted string.
static String	formatMillisSinceMidnight(int dayMillis) Converts a time of day, expressed as milliseconds, into an ISO8601 time formatted string.
static org.joda.time.chrono.ISOChronology	getDefaultChronology()
static TimeZone	getDefaultTimeZone()
static int	normalizeMillisSinceMidnight(long millis) Normalize elapsed milliseconds to the standard range from midnight to midnight.
protected static int	parseIntField(String str, int startPos, int endPos)
static void	parseInto(String text, DateSettable buffer) Parses a date in ISO8601 format, storing the result into a date valued container.
static void	parseInto(String text, TimeSettable buffer) Parses a time of day in ISO8601 time format, storing the result into a time valued container.
static void	parseInto(String text, TimestampSettable buffer) Parses a timestamp in ISO8601 format, storing the result into a timestamp valued container..
static int	parseTimeFields(String str, com.pervasive.datarush.tokens.scalar.DateTimeUtils.TimeParsingContext ctx, int pos)
static long	parseToDaysSinceEpoch(String text) Parses a date in ISO8601 time format into days since epoch.
static int	parseToMillisSinceMidnight(String text) Parses a time of day in ISO8601 time format into milliseconds since midnight.
static Date	toDate(long epochDays) Gets the instant in time at midnight in the default time zone corresponding to the given date.
static Date	toDate(long epochDays, TimeZone tz) Gets the instant in time at midnight in the specified time zone corresponding to the given date.
static long	toDaysSinceEpoch(Date date) Gets the date represented by the given instant in the default time zone as days since epoch.
static long	toDaysSinceEpoch(Date date, TimeZone tz) Gets the date represented by the given instant in the specified time zone as days since epoch.
static long	toDaysSinceEpoch(int year, int monthOfYear, int dayOfMonth) Gets the specified date as days since epoch.
static long	toDaysSinceEpoch(long millis) Gets the date represented by the given instant in the default time zone as days since epoch.
static long	toDaysSinceEpoch(long millis, TimeZone tz) Gets the date represented by the given instant in the specified time zone as days since epoch.
static void	toEpochTime(Date date, TimestampSettable buffer) Stores the given instant into a time stamp buffer using the default time zone for the offset.
static void	toEpochTime(Date date, TimeZone tz, TimestampSettable buffer) Stores the given instant into a time stamp buffer using the specified time zone for the offset.
static void	toEpochTime(long millis, TimestampSettable buffer) Stores the given instant into a time stamp buffer using the default time zone for the offset.
static void	toEpochTime(long millis, TimeZone tz, TimestampSettable buffer) Stores the given instant into a time stamp buffer using the specified time zone for the offset.
static void	toEpochTime(Timestamp timestamp, TimestampSettable buffer) Stores the given instant into a time stamp buffer using the default time zone for the offset.
static void	toEpochTime(Timestamp timestamp, TimeZone tz, TimestampSettable buffer) Stores the given instant into a time stamp buffer using the specified time zone for the offset.
static int	toMillisSinceMidnight(Date time) Gets the time of day represented by the given instant in the default time zone as milliseconds since midnight.
static int	toMillisSinceMidnight(Date time, TimeZone tz) Gets the time of day represented by the given instant in the specified time zone as milliseconds since midnight.
static int	toMillisSinceMidnight(int hourOfDay, int minuteOfHour, int secondOfMinute) Gets the time, in 24-hour format, as milliseconds since midnight.
static int	toMillisSinceMidnight(long instant) Gets the time of day represented by the given instant in the default time zone as milliseconds since midnight.
static int	toMillisSinceMidnight(long instant, TimeZone tz) Gets the time of day represented by the given instant in the specified time zone as milliseconds since midnight.
static Time	toTime(long dayMillis) Gets the instant in time on January 1, 1970 in the default time zone corresponding to the given time of day.
static Time	toTime(long dayMillis, TimeZone tz) Gets the instant in time on January 1, 1970 in the specified time zone corresponding to the given time of day.
static Timestamp	toTimestamp(long epochSecs, int subsecNanos, int offsetSecs) Gets the instant in time on corresponding to the specified epoch time.
static void	withCSTTimeZone(Runnable runnable)

Methods inherited from class java.lang.Object

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

Field Detail

LOCALTZ

@Deprecated
public static final TimeZone LOCALTZ

Deprecated.

The default time zone used in date conversions. This matches the time zone returned by TimeZone.getDefault(). Deprecated because this static instance is unsafe to use because tests or end users may want to set the default Timezone late and that should be respected. Only use TimeZone.getDefault directly instead.

CST_TIMEZONE

public static final TimeZone CST_TIMEZONE

Method Detail

parseIntField

protected static int parseIntField(String str,
                                   int startPos,
                                   int endPos)

parseTimeFields

public static int parseTimeFields(String str,
                                  com.pervasive.datarush.tokens.scalar.DateTimeUtils.TimeParsingContext ctx,
                                  int pos)

toDaysSinceEpoch

public static long toDaysSinceEpoch(int year,
                                    int monthOfYear,
                                    int dayOfMonth)

Gets the specified date as days since epoch.

Parameters:

year - the year portion of the date

monthOfYear - the month portion of the date. Months are counted as on a calendar, starting with 1 for January.

dayOfMonth - the day portion of the date

Returns:

the number of days elapsed since January 1, 1970

toDaysSinceEpoch

public static long toDaysSinceEpoch(long millis)

Gets the date represented by the given instant in the default time zone as days since epoch.

Parameters:

millis - the instant in time to convert

Returns:

the number of days elapsed since January 1, 1970

toDaysSinceEpoch

public static long toDaysSinceEpoch(long millis,
                                    TimeZone tz)

Gets the date represented by the given instant in the specified time zone as days since epoch.

Parameters:

millis - the instant in time to convert

tz - the time zone relative to which to interpret the instant

Returns:

the number of days elapsed since January 1, 1970

toDaysSinceEpoch

public static long toDaysSinceEpoch(Date date)

Gets the date represented by the given instant in the default time zone as days since epoch.

Parameters:

date - the instant in time to convert

tz - the time zone relative to which to interpret the instant

Returns:

the number of days elapsed since January 1, 1970

toDaysSinceEpoch

public static long toDaysSinceEpoch(Date date,
                                    TimeZone tz)

Gets the date represented by the given instant in the specified time zone as days since epoch.

Parameters:

date - the instant in time to convert

tz - the time zone relative to which to interpret the instant

Returns:

the number of days elapsed since January 1, 1970

epochDaysToMillis

public static long epochDaysToMillis(long epochDays,
                                     TimeZone tz)

Gets the instant in time at midnight in the specified time zone corresponding to the given date.

Parameters:

epochDays - the number of milliseconds elapsed since January 1, 1970

tz - the time zone relative to which to convert the date

Returns:

the resulting instant in time as milliseconds in epoch

toDate

public static Date toDate(long epochDays)

Gets the instant in time at midnight in the default time zone corresponding to the given date.

Parameters:

epochDays - the number of milliseconds elapsed since January 1, 1970

Returns:

a Date object representing the date

toDate

public static Date toDate(long epochDays,
                          TimeZone tz)

Gets the instant in time at midnight in the specified time zone corresponding to the given date.

Parameters:

epochDays - the number of milliseconds elapsed since January 1, 1970

tz - the time zone relative to which to convert the date

Returns:

a Date object representing the date

parseToDaysSinceEpoch

public static long parseToDaysSinceEpoch(String text)

Parses a date in ISO8601 time format into days since epoch.

Parameters:

text - a date in ISO8601 format

Returns:

the number of days elapsed since January 1, 1970

parseInto

public static void parseInto(String text,
                             DateSettable buffer)

Parses a date in ISO8601 format, storing the result into a date valued container. The empty string is parsed as a null value.

Parameters:

text - a date in ISO8601 format.

buffer - the container in which to store the parsed value

formatDaysSinceEpoch

public static String formatDaysSinceEpoch(long epochDays)

Converts a date, expressed as days, into an ISO8601 date formatted string.

Parameters:

epochDays - the number of days elapsed since January 1, 1970

Returns:

the date in ISO8601 format

format

public static String format(DateValued value)

Converts a date value into an ISO8601 date formatted string.

Parameters:

value - the date value to convert

Returns:

the date in ISO8601 format. If the input is null valued, the empty string is returned.

normalizeMillisSinceMidnight

public static int normalizeMillisSinceMidnight(long millis)

Normalize elapsed milliseconds to the standard range from midnight to midnight.

Parameters:

millis - milliseconds elapsed since midnight

Returns:

the normalize milliseconds representing the same time of day

toMillisSinceMidnight

public static int toMillisSinceMidnight(int hourOfDay,
                                        int minuteOfHour,
                                        int secondOfMinute)

Gets the time, in 24-hour format, as milliseconds since midnight.

Parameters:

hourOfDay - the hour portion of the time

minuteOfHour - the minutes portion of the time

secondOfMinute - the seconds portion of the time

Returns:

the number of milliseconds elapsed since midnight

toMillisSinceMidnight

public static int toMillisSinceMidnight(long instant)

Gets the time of day represented by the given instant in the default time zone as milliseconds since midnight.

Parameters:

instant - the instant in time to convert

Returns:

the number of milliseconds elapsed since midnight

toMillisSinceMidnight

public static int toMillisSinceMidnight(long instant,
                                        TimeZone tz)

Gets the time of day represented by the given instant in the specified time zone as milliseconds since midnight.

Parameters:

instant - the instant in time to convert

tz - the time zone relative to which to interpret the instant

Returns:

the number of milliseconds elapsed since midnight

toMillisSinceMidnight

public static int toMillisSinceMidnight(Date time)

Gets the time of day represented by the given instant in the default time zone as milliseconds since midnight.

Parameters:

time - the instant in time to convert

Returns:

the number of milliseconds elapsed since midnight

toMillisSinceMidnight

public static int toMillisSinceMidnight(Date time,
                                        TimeZone tz)

Gets the time of day represented by the given instant in the specified time zone as milliseconds since midnight.

Parameters:

time - the instant in time to convert

tz - the time zone relative to which to interpret the instant

Returns:

the number of milliseconds elapsed since midnight

toTime

public static Time toTime(long dayMillis)

Gets the instant in time on January 1, 1970 in the default time zone corresponding to the given time of day.

Parameters:

dayMillis - the number of milliseconds elapsed since midnight

Returns:

a Time object representing the time of day

toTime

public static Time toTime(long dayMillis,
                          TimeZone tz)

Gets the instant in time on January 1, 1970 in the specified time zone corresponding to the given time of day.

Parameters:

dayMillis - the number of milliseconds elapsed since midnight

tz - the time zone relative to which to convert the time of day

Returns:

a Time object representing the time of day

parseToMillisSinceMidnight

public static int parseToMillisSinceMidnight(String text)

Parses a time of day in ISO8601 time format into milliseconds since midnight.

Parameters:

text - a time of day in ISO8601 format

Returns:

the number of milliseconds elapsed since midnight

parseInto

public static void parseInto(String text,
                             TimeSettable buffer)

Parses a time of day in ISO8601 time format, storing the result into a time valued container. The empty string is parsed as a null value.

Parameters:

text - a time of day in ISO8601 format.

buffer - the container in which to store the parsed value

formatMillisSinceMidnight

public static String formatMillisSinceMidnight(int dayMillis)

Converts a time of day, expressed as milliseconds, into an ISO8601 time formatted string.

Parameters:

millisSinceMidnight - the number of milliseconds elapsed since midnight

Returns:

the time of day in ISO8601 format

format

public static String format(TimeValued value)

Converts a time of day value into an ISO8601 time formatted string.

Parameters:

value - the time value to format

Returns:

the time of day in ISO8601 format. If the input is null valued, the empty string is returned.

toEpochTime

public static void toEpochTime(long millis,
                               TimestampSettable buffer)

Stores the given instant into a time stamp buffer using the default time zone for the offset.

Parameters:

millis - the instant in time to convert

buffer - the container into which to store the value

toEpochTime

public static void toEpochTime(long millis,
                               TimeZone tz,
                               TimestampSettable buffer)

Stores the given instant into a time stamp buffer using the specified time zone for the offset.

Parameters:

millis - the instant in time to convert

tz - the time zone relative to which to interpret the instant

buffer - the container into which to store the value

toEpochTime

public static void toEpochTime(Date date,
                               TimestampSettable buffer)

Stores the given instant into a time stamp buffer using the default time zone for the offset. Nanosecond precision in the source value will be preserved, if present.

Parameters:

date - the instant in time to convert

buffer - the container into which to store the value

toEpochTime

public static void toEpochTime(Date date,
                               TimeZone tz,
                               TimestampSettable buffer)

Stores the given instant into a time stamp buffer using the specified time zone for the offset. Nanosecond precision in the source value will be preserved, if present.

Parameters:

date - the instant in time to convert

tz - the time zone relative to which to interpret the instant

buffer - the container into which to store the value

toEpochTime

public static void toEpochTime(Timestamp timestamp,
                               TimestampSettable buffer)

Stores the given instant into a time stamp buffer using the default time zone for the offset. The nanosecond precision of the source value is preserved.

Parameters:

timestamp - the instant in time to convert

buffer - the container into which to store the value

toEpochTime

public static void toEpochTime(Timestamp timestamp,
                               TimeZone tz,
                               TimestampSettable buffer)

Stores the given instant into a time stamp buffer using the specified time zone for the offset. The nanosecond precision of the source value is preserved.

Parameters:

timestamp - the instant in time to convert

tz - the time zone relative to which to interpret the instant

buffer - the container into which to store the value

toTimestamp

public static Timestamp toTimestamp(long epochSecs,
                                    int subsecNanos,
                                    int offsetSecs)

Gets the instant in time on corresponding to the specified epoch time.

Parameters:

epochSecs - number of seconds since Java epoch

subsecNanos - fractional portion of epoch time in nanoseconds

offsetSecs - time zone + daylight saving time offset in seconds

dayMillis - the number of milliseconds elapsed since midnight

Returns:

a Timestamp object representing the time stamp

parseInto

public static void parseInto(String text,
                             TimestampSettable buffer)

Parses a timestamp in ISO8601 format, storing the result into a timestamp valued container.. The empty string is parsed as a null value.

Parameters:

text - a timestamp in ISO8601 format.

buffer - the container in which to store the parsed value

formatEpochTime

public static String formatEpochTime(long seconds,
                                     int nanos,
                                     int offsetSecs)

Converts a time stamp, expressed as component values, into an ISO8601 time stamp formatted string.

Parameters:

seconds - number of seconds since Java epoch

nanos - fractional portion of epoch time in nanoseconds

offsetSeconds - time zone and daylight saving time offset, in seconds

Returns:

the time stamp in ISO8601 format

format

public static String format(TimestampValued value)

Converts a time stamp value into an ISO8601 time stamp formatted string.

Parameters:

value - the time stamp value to format

Returns:

the time stamp in ISO8601 format. If the input is null valued, the empty string is returned.

getDefaultTimeZone

public static TimeZone getDefaultTimeZone()

withCSTTimeZone

public static void withCSTTimeZone(Runnable runnable)

getDefaultChronology

public static org.joda.time.chrono.ISOChronology getDefaultChronology()