Package org.apache.wayang.profiler.log

Class DynamicLoadProfileEstimator

java.lang.Object

org.apache.wayang.profiler.log.DynamicLoadProfileEstimator

All Implemented Interfaces:

LoadProfileEstimator

public class DynamicLoadProfileEstimator
extends Object
implements LoadProfileEstimator

Adjustable LoadProfileEstimator implementation.

Constructor Summary

Constructors

Constructor	Description
DynamicLoadProfileEstimator(String configKey, int numInputs, int numOutputs, DynamicLoadEstimator cpuEstimator)	Creates a new instance.
DynamicLoadProfileEstimator(String configKey, int numInputs, int numOutputs, DynamicLoadEstimator cpuEstimator, DynamicLoadEstimator diskEstimator, DynamicLoadEstimator networkEstimator)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
LoadProfile	estimate(EstimationContext estimationContext)	Estimates a LoadProfile.
String	getConfigurationKey()	Retrieve the Configuration key for this instance.
Collection<Variable>	getEmployedVariables()
Collection<LoadProfileEstimator>	getNestedEstimators()	Retrieve nested instances.
void	nest(LoadProfileEstimator loadProfileEstimator)	Nest a sub-instance.
String	toJsonConfig(Individual individual)	Creates a JSON representation of this instance that can be plugged into a properties file.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wayang.core.optimizer.costs.LoadProfileEstimator

copy, getConfigurationKeys, getTemplateKey, getTemplateKeys

Constructor Details

DynamicLoadProfileEstimator

public DynamicLoadProfileEstimator(String configKey,
 int numInputs,
 int numOutputs,
 DynamicLoadEstimator cpuEstimator)

Creates a new instance.

Parameters:

numInputs - the number of input CardinalityEstimates to the new instance

numOutputs - the number of output CardinalityEstimates to the new instance

cpuEstimator - a DynamicLoadEstimator to estimate CPU load

DynamicLoadProfileEstimator

public DynamicLoadProfileEstimator(String configKey,
 int numInputs,
 int numOutputs,
 DynamicLoadEstimator cpuEstimator,
 DynamicLoadEstimator diskEstimator,
 DynamicLoadEstimator networkEstimator)

Creates a new instance.

Parameters:

configKey - with which this instance should be associated in a Configuration.

numInputs - the number of input CardinalityEstimates to the new instance

numOutputs - the number of output CardinalityEstimates to the new instance

cpuEstimator - a DynamicLoadEstimator to estimate CPU load

diskEstimator - a DynamicLoadEstimator to estimate disk load

networkEstimator - a DynamicLoadEstimator to estimate network load

Method Details

estimate

public LoadProfile estimate(EstimationContext estimationContext)

Description copied from interface: LoadProfileEstimator

Estimates a LoadProfile.

Specified by:

estimate in interface LoadProfileEstimator

Parameters:

estimationContext - provides parameters for the estimation

Returns:

the LoadProfile

nest

public void nest(LoadProfileEstimator loadProfileEstimator)

Description copied from interface: LoadProfileEstimator

Nest a sub-instance.

Specified by:

nest in interface LoadProfileEstimator

Parameters:

loadProfileEstimator - the sub-instance

getNestedEstimators

public Collection<LoadProfileEstimator> getNestedEstimators()

Description copied from interface: LoadProfileEstimator

Retrieve nested instances.

Specified by:

getNestedEstimators in interface LoadProfileEstimator

Returns:

the nested instances

getConfigurationKey

public String getConfigurationKey()

Description copied from interface: LoadProfileEstimator

Retrieve the Configuration key for this instance.

Specified by:

getConfigurationKey in interface LoadProfileEstimator

Returns:

the key or null if none

toJsonConfig

public String toJsonConfig(Individual individual)

Creates a JSON representation of this instance that can be plugged into a properties file.

Parameters:

individual - provides parameterization of this instance

Returns:

the JSON configuration representation

getEmployedVariables

public Collection<Variable> getEmployedVariables()