Package org.freedesktop.dbus.utils

Class TimeMeasure

java.lang.Object

org.freedesktop.dbus.utils.TimeMeasure

public class TimeMeasure
extends Object

Utility class for time measurements. Instances may be reset for reuse.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	TimeMeasure.ITimeMeasureFormat

Field Summary

Fields

Modifier and Type	Field	Description
private long	startTm	Start time in nanoseconds.
private final TimeMeasure.ITimeMeasureFormat	tmf	Formatter used for toString()

Constructor Summary

Constructors

Constructor	Description
TimeMeasure()	Create a new instance, used a formatter converting everything >= 5000 ms to seconds (X.Y -> 6.1).
TimeMeasure(TimeMeasure.ITimeMeasureFormat _formatter)	Create a new instance using _ts millis as

Method Summary

Modifier and Type	Method	Description
long	getElapsed()	Returns the elapsed time in milliseconds.
long	getElapsedAndReset()
String	getElapsedFormatted(DateFormat _dateFormat)	Formats the elapsed time using the given dateFormatter.
(package private) String	getElapsedFormatted(DateFormat _dateFormat, long _elapsedTime)	Same as above, used for proper unit testing.
long	getElapsedSeconds()	Returns the elapsed time in seconds.
long	getStartTime()	Returns the start time in milliseconds.
final TimeMeasure	reset()	Resets the start time.
(package private) void	setStartTm(long _tm)	Change the start time (for unit testing only!).
String	toString()	Returns the elapsed time in milliseconds formatted as string.

Methods inherited from class java.lang.Object

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

Field Details

startTm

private volatile long startTm

Start time in nanoseconds.

tmf

private final TimeMeasure.ITimeMeasureFormat tmf

Formatter used for toString()

Constructor Details

TimeMeasure

public TimeMeasure(TimeMeasure.ITimeMeasureFormat _formatter)

Create a new instance using _ts millis as

Parameters:

_formatter - formatter to use for toString() call

TimeMeasure

public TimeMeasure()

Create a new instance, used a formatter converting everything >= 5000 ms to seconds (X.Y -> 6.1).

Method Details

reset

public final TimeMeasure reset()

Resets the start time.

Returns:

the object

getStartTime

public long getStartTime()

Returns the start time in milliseconds.

Returns:

start time in ms

getElapsed

public long getElapsed()

Returns the elapsed time in milliseconds.

Returns:

elapsed time in ms

getElapsedSeconds

public long getElapsedSeconds()

Returns the elapsed time in seconds.

Returns:

elapsed time in seconds

getElapsedFormatted

public String getElapsedFormatted(DateFormat _dateFormat)

Formats the elapsed time using the given dateFormatter. If null is given, a new Formatter with format HH:mm:ss.SSS will be used. The timezone of the given dateFormatter will always be set to 'UTC' to avoid any timezone related offsets.

Parameters:

_dateFormat - date format

Returns:

formatted string

getElapsedFormatted

String getElapsedFormatted(DateFormat _dateFormat,
 long _elapsedTime)

Same as above, used for proper unit testing.

Parameters:

_dateFormat -

_elapsedTime -

Returns:

formatted string

setStartTm

void setStartTm(long _tm)

Change the start time (for unit testing only!).

Parameters:

_tm -

getElapsedAndReset

public long getElapsedAndReset()

toString

public String toString()

Returns the elapsed time in milliseconds formatted as string.

Overrides:

toString in class Object

Returns:

elapsed time in ms