com.facebook.buck.event.listener.util

Class EventInterval

java.lang.Object

com.facebook.buck.event.listener.util.EventInterval

public abstract class EventInterval
extends Object

Utility class to help match up start and end events

Constructor Summary

Constructors

Constructor and Description
EventInterval()

Method Summary

Modifier and Type	Method and Description
static EventInterval	finish(long finish)
long	getElapsedTimeMs()
long	getEndTime()
abstract OptionalLong	getFinish()
abstract OptionalLong	getStart()
long	getStartTime()
boolean	isComplete()
boolean	isOngoing()
boolean	isStarted()
static EventInterval	of(OptionalLong start, OptionalLong end)
static EventInterval	proxy(long start, long end) Build a proxy event pair from a start and end timestamp
static EventInterval	start(long start)
EventInterval	withFinish(long timestampMillis)
EventInterval	withStart(long timestampMillis)

Methods inherited from class java.lang.Object

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

Constructor Detail

EventInterval

public EventInterval()

Method Detail

getStart

public abstract OptionalLong getStart()

getFinish

public abstract OptionalLong getFinish()

isStarted

public boolean isStarted()

Returns:

true if this event pair has a start.

isComplete

public boolean isComplete()

Returns:

true if this event pair has a start and an end, false otherwise.

isOngoing

public boolean isOngoing()

Returns:

true if this event pair has been started, but has not yet been finished.

getStartTime

public long getStartTime()

Returns:

the start time of this event or -1 if this pair does not contain a start

getEndTime

public long getEndTime()

Returns:

the end time of this event or -1 if this pair does not contain an end

getElapsedTimeMs

public long getElapsedTimeMs()

Returns:

the difference between the start and end events in ms if this event pair is complete, 0 otherwise.

proxy

public static EventInterval proxy(long start,
                                  long end)

Build a proxy event pair from a start and end timestamp

Parameters:

start - the start time of the resulting pair

end - the end time of the resulting pair

Returns:

an event pair made from two proxy (synthetic) events

of

public static EventInterval of(OptionalLong start,
                               OptionalLong end)

start

public static EventInterval start(long start)

finish

public static EventInterval finish(long finish)

withStart

public EventInterval withStart(long timestampMillis)

withFinish

public EventInterval withFinish(long timestampMillis)