org.palladiosimulator.experimentanalysis.windowaggregators

Class SlidingWindowUtilizationAggregator

java.lang.Object

org.palladiosimulator.experimentanalysis.windowaggregators.SlidingWindowAggregator

org.palladiosimulator.experimentanalysis.windowaggregators.SlidingWindowUtilizationAggregator

All Implemented Interfaces:

ISlidingWindowListener

Direct Known Subclasses:

SlidingWindowExponentialSmoothingUtilizationAggregator

public class SlidingWindowUtilizationAggregator
extends SlidingWindowAggregator

This class is a SlidingWindowAggregator implementation which calculates the utilization of an active resource based on a sequence of (point in time, state of active resource) or (point in time, utilization of active resource) tuples collected by a SlidingWindow.
The calculated utilization is passed to the attached IRecorder in the form of a (point in time, utilization of active resource) tuple each time this implementation processes new window data.

Author:

Florian Rosenthal

See Also:

SlidingWindowRecorder, getAllowedWindowDataMetrics()

Constructor Summary

Constructors

Constructor and Description
SlidingWindowUtilizationAggregator(org.palladiosimulator.metricspec.MetricDescription windowDataMetric, org.palladiosimulator.recorderframework.IRecorder recorderToWriteInto) Initializes a new instance of the SlidingWindowUtilizationAggregator class with the given parameter.

Method Summary

Modifier and Type	Method and Description
static java.util.Collection<org.palladiosimulator.metricspec.MetricDescription>	getAllowedWindowDataMetrics() Gets all data metrics that can be processed by instances of this class.
org.palladiosimulator.metricspec.MetricDescription	getExpectedWindowDataMetric() Returns the MetricDescription all window data must adhere to in order to be processed by this aggregator.

Methods inherited from class org.palladiosimulator.experimentanalysis.windowaggregators.SlidingWindowAggregator

addRecorder, onSlidingWindowFull

Methods inherited from class java.lang.Object

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

Constructor Detail

SlidingWindowUtilizationAggregator

public SlidingWindowUtilizationAggregator(org.palladiosimulator.metricspec.MetricDescription windowDataMetric,
                                          org.palladiosimulator.recorderframework.IRecorder recorderToWriteInto)

Initializes a new instance of the SlidingWindowUtilizationAggregator class with the given parameter.

Parameters:

windowDataMetric - The MetricDescription of the measurements to be processed, i.e, which are used to compute the utilization.

recorderToWriteInto - An IRecorder this instance writes the aggregated window data into. Typically, a recorder that writes into a persistence framework like EDP 2 is passed here.

Throws:

java.lang.NullPointerException - If either argument is null.

java.lang.IllegalArgumentException - If the given metric is not supported by this aggregator.

Method Detail

getExpectedWindowDataMetric

public org.palladiosimulator.metricspec.MetricDescription getExpectedWindowDataMetric()

Returns the MetricDescription all window data must adhere to in order to be processed by this aggregator.

Returns:

The MetricDescription of the data this instance is processing.

See Also:

ISlidingWindowListener, SlidingWindow.getAcceptedMetric()

getAllowedWindowDataMetrics

public static java.util.Collection<org.palladiosimulator.metricspec.MetricDescription> getAllowedWindowDataMetrics()

Gets all data metrics that can be processed by instances of this class.

Returns:

An unmodifiable Collection of those MetricDescriptions which can be processed.