org.opennms.netmgt.alarmd.drools

Class SessionClock

java.lang.Object

org.opennms.netmgt.alarmd.drools.SessionClock

All Implemented Interfaces:

org.kie.api.time.SessionClock, org.kie.api.time.SessionPseudoClock

public class SessionClock
extends Object
implements org.kie.api.time.SessionPseudoClock

This clock is used to provide the current time as fact within the Drools engine. We use this as opposed to using STREAM mode since STREAM mode does not have deterministic behavior when given out-of-order events.

Author:

jwhite

Constructor Summary

Constructors

Constructor and Description
SessionClock(org.kie.api.runtime.KieSession session, long now)

Method Summary

Modifier and Type	Method and Description
long	advanceTime(long amount, TimeUnit unit)
void	advanceTimeToNow()
Date	ago(long amount, TimeUnit unit)
Date	ago(String timePeriod)
long	getCurrentTime()
static long	getMsFromTimePeriod(String timePeriod)
Date	now()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SessionClock

public SessionClock(org.kie.api.runtime.KieSession session,
                    long now)

Method Detail

getCurrentTime

public long getCurrentTime()

Specified by:

getCurrentTime in interface org.kie.api.time.SessionClock

advanceTime

public long advanceTime(long amount,
                        TimeUnit unit)

Specified by:

advanceTime in interface org.kie.api.time.SessionPseudoClock

advanceTimeToNow

public void advanceTimeToNow()

now

public Date now()

ago

public Date ago(String timePeriod)

ago

public Date ago(long amount,
                TimeUnit unit)

getMsFromTimePeriod

public static long getMsFromTimePeriod(String timePeriod)

toString

public String toString()

Overrides:

toString in class Object