tsdb.util

Class TimeUtil

java.lang.Object

tsdb.util.TimeUtil

All Implemented Interfaces:

java.io.Serializable

public final class TimeUtil
extends java.lang.Object
implements java.io.Serializable

This class converts between date and time systems and keeps timestamp info from a UDBF-File.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static java.time.format.DateTimeFormatter	DATE_TIME_FORMATER_SPACE_SECONDS
static java.time.LocalDateTime	OLE_AUTOMATION_TIME_START
static java.util.Comparator<java.lang.Long>	TIMESTAMP_END_ASC_COMPARATOR
static java.util.Comparator<java.lang.Long>	TIMESTAMP_START_ASC_COMPARATOR

Method Summary

Modifier and Type	Method and Description
static long	dateTimeToOleMinutes(java.time.LocalDateTime datetime)
static char[]	fastDateTimeWrite_custom(java.time.LocalDateTime localDateTime)
static char[]	fastDateTimeWrite(java.time.LocalDateTime localDateTime)
static char[]	fastDateTimeWriteHours_custom(java.time.LocalDateTime localDateTime)
static char[]	fastDateTimeWriteHours(java.time.LocalDateTime localDateTime)
static char[]	fastDateWrite(java.time.LocalDate localDate)
static char[]	fastDateWriteMonths(java.time.LocalDate localDate)
static char[]	fastDateWriteWeeks(java.time.LocalDate localDate)
static char[]	fastDateWriteYears(java.time.LocalDate localDate)
static char[]	fastTimestampWrite_custom(java.time.LocalDateTime datetime, AggregationInterval datetimeFormat)
static char[]	fastTimestampWrite_custom(long timestamp, AggregationInterval datetimeFormat)
static char[]	fastTimestampWrite(java.time.LocalDateTime datetime, AggregationInterval datetimeFormat)
static char[]	fastTimestampWrite(long timestamp, AggregationInterval datetimeFormat)
static char[]	fastTimeWrite(java.time.LocalTime localTime)
static java.time.Duration	minutesToDuration(long minutes)
static long	ofDateEndHour(int year)
static long	ofDateEndHour(int year, int month)
static long	ofDateEndMinute(int year)
static long	ofDateEndMinute(int year, int month)
static long	ofDateStartHour(int year)
static long	ofDateStartHour(int year, int month)
static long	ofDateStartMinute(int year)
static long	ofDateStartMinute(int year, int month)
static java.time.LocalDateTime	oleAutomatonTimeToDateTime(double oleAutomatonTimestampDays)
static java.lang.String	oleMinutesToDateTimeFileText(long oleTimeMinutes)
static java.lang.String	oleMinutesToDateTimeFileText(java.lang.Long oleTimeMinutes) convertes timestamp to text that is usable as part of a filename
static java.time.LocalDateTime	oleMinutesToLocalDateTime(long oleTimeMinutes)
static java.lang.String	oleMinutesToText(java.lang.Integer oleTimeMinutes)
static java.lang.String	oleMinutesToText(java.lang.Long oleTimeMinutes)
static java.lang.String	oleMinutesToText(long oleTimeMinutesStart, long oleTimeMinutesEnd)
static java.lang.String	oleMinutesToText(java.lang.Long oleTimeMinutesStart, java.lang.Long oleTimeMinutesEnd)
static int	parseEndTimestamp(java.lang.String text) parses an ISO 8601 date.
static int	parseStartTimestamp(java.lang.String text) parses an ISO 8601 date.
static long	parseTimestamp(java.lang.String dateText, java.lang.String timeText, boolean isISOdate)
static long	parseTimestampDateFullHourFormat(java.lang.String dateText, int fullHour) example: 2010-10-07,24 ==> 2010-10-07T23:00 example: 2010-10-08,1 ==> 2010-10-08T00:00 example: 2010-10-08,0 ==> 2010-10-07,23:00 (special case)
static long	parseTimestampMonthFirstAmPmFormat(java.lang.String dateTimeText) example: 05.21.16 10:10:00 AM
static long	parseTimestampMonthFirstFormat(java.lang.String dateTimeText) example: 07.12.2016 22:10
static long	parseTimestampMonthNameFormat(java.lang.String dateTimeText) example: 01-Jul-2010 3:25 example: 16-Dec-2010 14:55 example: 12-Oct-2012 11:30
static long	parseTimestampSlashFormat(java.lang.String dateTimeText) format: yyyy/MM/dd HH:mm example: 2010/08/25 00:05
static long	parseTimestampSpaceFormat(java.lang.String dateTimeText) format: yyyy-MM-dd HH:mm:ss example: 2010-08-25 00:05:23 example: 2010-08-25 00:05:23.1234
static int	roundLowerMonth(int timestamp)
static int	roundLowerYear(int timestamp) Get timestamp of start of the year at timestamp.
static int	roundNextMonth(int timestamp)
static int	roundNextYear(int timestamp) Get timestamp of start of next year following year of timestamp.
static java.time.LocalDateTime	unixTimeToLocalDateTime(long unixTime)

Methods inherited from class java.lang.Object

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

Field Detail

OLE_AUTOMATION_TIME_START

public static final java.time.LocalDateTime OLE_AUTOMATION_TIME_START

DATE_TIME_FORMATER_SPACE_SECONDS

public static final java.time.format.DateTimeFormatter DATE_TIME_FORMATER_SPACE_SECONDS

TIMESTAMP_START_ASC_COMPARATOR

public static final java.util.Comparator<java.lang.Long> TIMESTAMP_START_ASC_COMPARATOR

TIMESTAMP_END_ASC_COMPARATOR

public static final java.util.Comparator<java.lang.Long> TIMESTAMP_END_ASC_COMPARATOR

Method Detail

oleAutomatonTimeToDateTime

public static java.time.LocalDateTime oleAutomatonTimeToDateTime(double oleAutomatonTimestampDays)

oleMinutesToLocalDateTime

public static java.time.LocalDateTime oleMinutesToLocalDateTime(long oleTimeMinutes)

minutesToDuration

public static java.time.Duration minutesToDuration(long minutes)

dateTimeToOleMinutes

public static long dateTimeToOleMinutes(java.time.LocalDateTime datetime)

oleMinutesToText

public static java.lang.String oleMinutesToText(java.lang.Long oleTimeMinutes)

oleMinutesToText

public static java.lang.String oleMinutesToText(java.lang.Integer oleTimeMinutes)

oleMinutesToDateTimeFileText

public static java.lang.String oleMinutesToDateTimeFileText(long oleTimeMinutes)

oleMinutesToDateTimeFileText

public static java.lang.String oleMinutesToDateTimeFileText(java.lang.Long oleTimeMinutes)

convertes timestamp to text that is usable as part of a filename

Parameters:

oleTimeMinutes - invalid timestamps (null or < 0 ) are handled by placeholder text

Returns:

oleMinutesToText

public static java.lang.String oleMinutesToText(long oleTimeMinutesStart,
                                                long oleTimeMinutesEnd)

oleMinutesToText

public static java.lang.String oleMinutesToText(java.lang.Long oleTimeMinutesStart,
                                                java.lang.Long oleTimeMinutesEnd)

parseTimestampSlashFormat

public static long parseTimestampSlashFormat(java.lang.String dateTimeText)

format: yyyy/MM/dd HH:mm example: 2010/08/25 00:05

Parameters:

dateTimeText -

Returns:

timestamp

parseTimestampSpaceFormat

public static long parseTimestampSpaceFormat(java.lang.String dateTimeText)

format: yyyy-MM-dd HH:mm:ss example: 2010-08-25 00:05:23 example: 2010-08-25 00:05:23.1234

Parameters:

dateTimeText -

Returns:

timestamp

parseTimestampMonthFirstAmPmFormat

public static long parseTimestampMonthFirstAmPmFormat(java.lang.String dateTimeText)

example: 05.21.16 10:10:00 AM

Parameters:

dateTimeText -

Returns:

parseTimestampMonthFirstFormat

public static long parseTimestampMonthFirstFormat(java.lang.String dateTimeText)

example: 07.12.2016 22:10

Parameters:

dateTimeText -

Returns:

parseTimestampMonthNameFormat

public static long parseTimestampMonthNameFormat(java.lang.String dateTimeText)

example: 01-Jul-2010 3:25 example: 16-Dec-2010 14:55 example: 12-Oct-2012 11:30

Parameters:

dateTimeText -

Returns:

parseTimestampDateFullHourFormat

public static long parseTimestampDateFullHourFormat(java.lang.String dateText,
                                                    int fullHour)

example: 2010-10-07,24 ==> 2010-10-07T23:00 example: 2010-10-08,1 ==> 2010-10-08T00:00 example: 2010-10-08,0 ==> 2010-10-07,23:00 (special case)

Parameters:

dateTimeText -

Returns:

parseTimestamp

public static long parseTimestamp(java.lang.String dateText,
                                  java.lang.String timeText,
                                  boolean isISOdate)

roundLowerYear

public static int roundLowerYear(int timestamp)

Get timestamp of start of the year at timestamp.

Parameters:

timestamp -

Returns:

roundLowerMonth

public static int roundLowerMonth(int timestamp)

roundNextYear

public static int roundNextYear(int timestamp)

Get timestamp of start of next year following year of timestamp.

Parameters:

timestamp -

Returns:

roundNextMonth

public static int roundNextMonth(int timestamp)

ofDateStartHour

public static long ofDateStartHour(int year)

ofDateEndHour

public static long ofDateEndHour(int year)

ofDateStartMinute

public static long ofDateStartMinute(int year)

ofDateStartMinute

public static long ofDateStartMinute(int year,
                                     int month)

ofDateEndMinute

public static long ofDateEndMinute(int year)

ofDateEndMinute

public static long ofDateEndMinute(int year,
                                   int month)

ofDateStartHour

public static long ofDateStartHour(int year,
                                   int month)

ofDateEndHour

public static long ofDateEndHour(int year,
                                 int month)

parseStartTimestamp

public static int parseStartTimestamp(java.lang.String text)

parses an ISO 8601 date. full format: YYYY-MM-DDThh:mm eg. 2009-12-31T14:09 completes shortened dates to start of period eg. 2009 leads to 2009-01-01T00:00 text "*" as unspecified date returns Integer.MIN_VALUE

Parameters:

text -

Returns:

timestamp in minutes

parseEndTimestamp

public static int parseEndTimestamp(java.lang.String text)

parses an ISO 8601 date. full format: YYYY-MM-DDThh:mm eg. 2009-12-31T14:09 completes shortened dates to end of period eg. 2009 leads to 2009-12-31T23:59 text "*" as unspecified date returns Integer.MAX_VALUE

Parameters:

text -

Returns:

timestamp in minutes

fastTimestampWrite

public static char[] fastTimestampWrite(long timestamp,
                                        AggregationInterval datetimeFormat)

fastTimestampWrite_custom

public static char[] fastTimestampWrite_custom(long timestamp,
                                               AggregationInterval datetimeFormat)

fastTimestampWrite

public static char[] fastTimestampWrite(java.time.LocalDateTime datetime,
                                        AggregationInterval datetimeFormat)

fastTimestampWrite_custom

public static char[] fastTimestampWrite_custom(java.time.LocalDateTime datetime,
                                               AggregationInterval datetimeFormat)

fastTimeWrite

public static char[] fastTimeWrite(java.time.LocalTime localTime)

fastDateWrite

public static char[] fastDateWrite(java.time.LocalDate localDate)

fastDateWriteWeeks

public static char[] fastDateWriteWeeks(java.time.LocalDate localDate)

fastDateWriteMonths

public static char[] fastDateWriteMonths(java.time.LocalDate localDate)

fastDateWriteYears

public static char[] fastDateWriteYears(java.time.LocalDate localDate)

fastDateTimeWrite

public static char[] fastDateTimeWrite(java.time.LocalDateTime localDateTime)

fastDateTimeWrite_custom

public static char[] fastDateTimeWrite_custom(java.time.LocalDateTime localDateTime)

fastDateTimeWriteHours

public static char[] fastDateTimeWriteHours(java.time.LocalDateTime localDateTime)

fastDateTimeWriteHours_custom

public static char[] fastDateTimeWriteHours_custom(java.time.LocalDateTime localDateTime)

unixTimeToLocalDateTime

public static java.time.LocalDateTime unixTimeToLocalDateTime(long unixTime)