com.ibm.tivoli.maximo.skd.common.util

Class DateTimeUtility

java.lang.Object

com.ibm.tivoli.maximo.skd.common.util.DateTimeUtility

public class DateTimeUtility
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
DateTimeUtility()

Method Summary

Modifier and Type	Method and Description
static java.util.Date	addDays(java.util.Date date, int plusDays) Add a number of days to a date.
static java.util.Date	addHours(java.util.Date date, double hours) Add a number of hours to a date.
static java.util.Date	addTime(java.util.Date date, java.util.Date dateTime) Adds the time portion of a given date to another one.
static ilog.views.gantt.IlvTimeInterval	centerDuration(ilog.views.gantt.IlvTimeInterval ti, ilog.views.gantt.IlvDuration dur) Centers the time interval inside the duration
static java.util.Date	convertDateToUserTimezone(java.util.Date d, java.util.Locale userLocale, java.util.TimeZone userTimeZone) Returns the date in user timezone and locale
static int	convertToMinutes(double hours)
static double	durationBetweenTwoDates(java.util.Date startTime, java.util.Date endTime) Calculate the duration between two dates.
static java.lang.String	formatDate(java.util.Date date) Formats a given date that according to the U.S.
static java.util.Calendar	getLastHourMinuteForDate(java.util.Calendar cal)
static java.util.Date	getLastHourMinuteForDate(java.util.Date date)
static int	getMinutes(java.util.Date date) Convenience method for extracting just the Minutes from a Date object
static java.util.Date	parseDate(java.lang.String format, java.lang.String date)
static java.util.Date	returnEarliest(java.util.Date date1, java.util.Date date2)
static java.util.Date	returnLatest(java.util.Date date1, java.util.Date date2)
static java.util.Date	roundMinutes(java.util.Date in, int minuteBlock) Rounds a Date to the nearest Minute block using default RoundingMode of HALF_UP.
static java.util.Date	roundMinutes(java.util.Date in, int minuteBlock, java.math.RoundingMode roundingMode) Rounds a Date to the nearest Minute block while accounting for the RoundingMode.
static int	timeDiff(java.util.Date date1, java.util.Date date2)
static int	timeDiffInDays(java.util.Date date1, java.util.Date date2) Time difference(in days) between date1 and date2 in days.
static java.util.Calendar	trimToDay(java.util.Calendar calendar) Trims a Calendar date to the start of the day
static java.util.Date	trimToDay(java.util.Date in) Trims a Date to the start of the day
static java.util.Date	trimToHourMinute(java.util.Date in) Trims a Date to the start of the day

Methods inherited from class java.lang.Object

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

Constructor Detail

DateTimeUtility

public DateTimeUtility()

Method Detail

roundMinutes

public static java.util.Date roundMinutes(java.util.Date in,
                                          int minuteBlock)

Rounds a Date to the nearest Minute block using default RoundingMode of HALF_UP.

Parameters:

in - Date

minuteBlock - Minute block, 5, 10, 15, 20 or 30, 60

Returns:

new Date instance rounded to the nearest block of time

roundMinutes

public static java.util.Date roundMinutes(java.util.Date in,
                                          int minuteBlock,
                                          java.math.RoundingMode roundingMode)

Rounds a Date to the nearest Minute block while accounting for the RoundingMode. HALF_UP means that times that are exactly half of the minute block will be rounded up. HALF_DOWN means that times that are exactly half of the minuteBlock will be rounded down. For example, if the minute block is 10 and the time has 5 minutes, then the time will be rounded to 10 when HALF_UP and 0 when HALF_DOWN.

Parameters:

in - Date

minuteBlock - Minute block, 5, 10, 15, 20 or 30, 60

Returns:

new Date instance rounded to the nearest block of time

trimToDay

public static java.util.Date trimToDay(java.util.Date in)

Trims a Date to the start of the day

Parameters:

in - Date

Returns:

Date trimmed to the start of the day

trimToDay

public static java.util.Calendar trimToDay(java.util.Calendar calendar)

Trims a Calendar date to the start of the day

Parameters:

calendar - date

Returns:

Same calendar instance that was passed in, but trimmed.

trimToHourMinute

public static java.util.Date trimToHourMinute(java.util.Date in)

Trims a Date to the start of the day

Parameters:

in - Date

Returns:

Date trimmed to the start of the day

getMinutes

public static int getMinutes(java.util.Date date)

Convenience method for extracting just the Minutes from a Date object

Parameters:

date - Date object

Returns:

minutes

centerDuration

public static ilog.views.gantt.IlvTimeInterval centerDuration(ilog.views.gantt.IlvTimeInterval ti,
                                                              ilog.views.gantt.IlvDuration dur)

Centers the time interval inside the duration

Parameters:

ti -

dur -

Returns:

addDays

public static java.util.Date addDays(java.util.Date date,
                                     int plusDays)

Add a number of days to a date. return the new date

Parameters:

date -

days - to add

Returns:

date

addTime

public static java.util.Date addTime(java.util.Date date,
                                     java.util.Date dateTime)

Adds the time portion of a given date to another one.

Parameters:

date -

dateTime -

Returns:

timeDiff

public static int timeDiff(java.util.Date date1,
                           java.util.Date date2)

timeDiffInDays

public static int timeDiffInDays(java.util.Date date1,
                                 java.util.Date date2)

Time difference(in days) between date1 and date2 in days. The other parts of the dates are ignored

convertToMinutes

public static int convertToMinutes(double hours)

addHours

public static java.util.Date addHours(java.util.Date date,
                                      double hours)

Add a number of hours to a date. return the new date

formatDate

public static java.lang.String formatDate(java.util.Date date)

Formats a given date that according to the U.S. standards.

Parameters:

date -

Returns:

parseDate

public static java.util.Date parseDate(java.lang.String format,
                                       java.lang.String date)

durationBetweenTwoDates

public static double durationBetweenTwoDates(java.util.Date startTime,
                                             java.util.Date endTime)

Calculate the duration between two dates.

Parameters:

startDate -

endDate -

Returns:

duration

Throws:

java.lang.Exception

convertDateToUserTimezone

public static java.util.Date convertDateToUserTimezone(java.util.Date d,
                                                       java.util.Locale userLocale,
                                                       java.util.TimeZone userTimeZone)

Returns the date in user timezone and locale

Parameters:

l -

tz -

Returns:

Date

Throws:

java.rmi.RemoteException

getLastHourMinuteForDate

public static java.util.Calendar getLastHourMinuteForDate(java.util.Calendar cal)

getLastHourMinuteForDate

public static java.util.Date getLastHourMinuteForDate(java.util.Date date)

returnEarliest

public static java.util.Date returnEarliest(java.util.Date date1,
                                            java.util.Date date2)

returnLatest

public static java.util.Date returnLatest(java.util.Date date1,
                                          java.util.Date date2)