ikr.simlib.meters.cdv

Class CDVMeter

java.lang.Object

ikr.simlib.meters.Meter

ikr.simlib.meters.OnePointMeter

ikr.simlib.meters.cdv.CDVMeter

public class CDVMeter
extends OnePointMeter

An CDV meter can be attached to a port to measure one point CDV (cell delay variation). The useMessage(Message) method can be overridden to use only those messages for measurement that satisfy certain criteria, e.g., based on message content, or message type.

Upon construction, CDVMeter requires a (fixed) rate which is taken to calculate the cell delay variation (CDV) of the measured values.

Field Summary

Fields inherited from class ikr.simlib.meters.OnePointMeter

portHandler

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CDVMeter(UnweightedSampleCollector<Duration> statistic, double rate)

Method Summary

Methods

Modifier and Type	Method and Description
static CDVMeter	createWithDoubleStatistic(UnweightedSampleCollector<java.lang.Double> statistic, double rate) creates a new CDVMeter with a statistic that accepts Double values.
static CDVMeter	createWithDurationStatistic(UnweightedSampleCollector<Duration> statistic, double rate) creates a new CDVMeter with a statistic that accepts Duration objects
protected void	evaluateMessage(Message msg, Port port)
protected void	evaluateSample(Duration sample) called when a message was seen
protected boolean	useMessage(Message msg) filters messages that should be used for IAT measurement

Methods inherited from class ikr.simlib.meters.OnePointMeter

attachInput, attachInput

Methods inherited from class java.lang.Object

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

Constructor Detail

CDVMeter

protected CDVMeter(UnweightedSampleCollector<Duration> statistic,
        double rate)

Method Detail

createWithDurationStatistic

public static CDVMeter createWithDurationStatistic(UnweightedSampleCollector<Duration> statistic,
                                   double rate)

creates a new CDVMeter with a statistic that accepts Duration objects

Parameters:

statistic - statistic to fill with the values

rate - expected rate

Returns:

the new CDVMeter

createWithDoubleStatistic

public static CDVMeter createWithDoubleStatistic(UnweightedSampleCollector<java.lang.Double> statistic,
                                 double rate)

creates a new CDVMeter with a statistic that accepts Double values. The measured durations are converted to seconds and then filled into the statistic.

Parameters:

statistic - statistic to fill with the values

rate - expected rate

Returns:

the new CDVMeter

evaluateSample

protected void evaluateSample(Duration sample)

called when a message was seen

Parameters:

sample - the current sample

useMessage

protected boolean useMessage(Message msg)

filters messages that should be used for IAT measurement

Parameters:

msg - the observed message

evaluateMessage

protected void evaluateMessage(Message msg,
                   Port port)

Specified by:

evaluateMessage in class OnePointMeter