org.ijsberg.iglu.util.time
Class TimeSupport

java.lang.Object
  org.ijsberg.iglu.util.time.TimeSupport

public abstract class TimeSupport
extends Object

Contains convenience methods concerning time and date.

Field Summary

static long

defaultGMTOffsetInMillis

Constructor Summary

TimeSupport()

Method Summary

static long	determineMillisUntilNextInterval(int intervalInMinutes, long gmtOffset)
static long	floorToIntervalStart(int intervalInMinutes, long time, long gmtOffset) Determines the exact time an interval starts based on a time within the interval.
static int	getIntervalsSinceMidnight(int intervalInMinutes, long timeInMillis, long gmtOffset)
static int	getMinutesSinceMidnight(long gmtOffset)
static int	getMinutesSinceMidnight(long timeInMillis, long gmtOffset)
static boolean	isAfterToday(Date date)
static boolean	isBeforeToday(Date date)
static boolean	isIntervalStart(int intervalInMinutes, int offsetInMinutes, long gmtOffset)
static boolean	isIntervalStart(int intervalInMinutes, long gmtOffset)
static boolean	isSameDay(long time1, long time2)
static boolean	isSameInterval(int intervalInMinutes, long time1, long time2, long gmtOffset)
static boolean	isSameWeek(long time1, long time2)
static boolean	isToday(Date date)
static long	roundToMinute(long time)

Methods inherited from class java.lang.Object

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

Field Detail

defaultGMTOffsetInMillis

public static final long defaultGMTOffsetInMillis

Constructor Detail

TimeSupport

public TimeSupport()

Method Detail

isToday

public static boolean isToday(Date date)

Parameters:

date -

Returns:

true if the given date happens to be today

isBeforeToday

public static boolean isBeforeToday(Date date)

Parameters:

date -

Returns:

true if the given date is on a day earlier than today

isAfterToday

public static boolean isAfterToday(Date date)

Parameters:

date -

Returns:

true if the given date is on a day later than today

getMinutesSinceMidnight

public static int getMinutesSinceMidnight(long gmtOffset)

Returns:

The number of minutes passed since 00:00 hours

getMinutesSinceMidnight

public static int getMinutesSinceMidnight(long timeInMillis,
                                          long gmtOffset)

Parameters:

timeInMillis -

Returns:

The number of minutes passed since 00:00 hours

getIntervalsSinceMidnight

public static int getIntervalsSinceMidnight(int intervalInMinutes,
                                            long timeInMillis,
                                            long gmtOffset)

Parameters:

intervalInMinutes - intervalInMinutes in minutes

timeInMillis -

Returns:

the number of passed intervals since midnight

isSameInterval

public static boolean isSameInterval(int intervalInMinutes,
                                     long time1,
                                     long time2,
                                     long gmtOffset)

Parameters:

intervalInMinutes - intervalInMinutes in minutes

time1 - time in millis

time2 - time in millis

Returns:

true if the two specified times are part of the same intervalInMinutes

isSameDay

public static boolean isSameDay(long time1,
                                long time2)

Parameters:

time1 - time in millis

time2 - time in millis

Returns:

true if the two specified times are part of the same day

isSameWeek

public static boolean isSameWeek(long time1,
                                 long time2)

Parameters:

time1 - time in millis

time2 - time in millis

Returns:

true if the two specified times are part of the same week

floorToIntervalStart

public static long floorToIntervalStart(int intervalInMinutes,
                                        long time,
                                        long gmtOffset)

Determines the exact time an interval starts based on a time within the interval.

Parameters:

intervalInMinutes -

time - time in millis

Returns:

the exact time in milliseconds the interval begins

roundToMinute

public static long roundToMinute(long time)

Parameters:

time - time in millis

Returns:

time in milles rounded to the minute

isIntervalStart

public static boolean isIntervalStart(int intervalInMinutes,
                                      int offsetInMinutes,
                                      long gmtOffset)

Parameters:

intervalInMinutes -

offsetInMinutes -

Returns:

true if an interval starts this minute

isIntervalStart

public static boolean isIntervalStart(int intervalInMinutes,
                                      long gmtOffset)

Parameters:

intervalInMinutes -

Returns:

true if a (page) interval starts this minute

determineMillisUntilNextInterval

public static long determineMillisUntilNextInterval(int intervalInMinutes,
                                                    long gmtOffset)

Parameters:

intervalInMinutes -

Returns:

the number of milliseconds to wait until the next interval starts