Package org.apache.wayang.core.optimizer.costs

Class NestableLoadProfileEstimator

java.lang.Object

org.apache.wayang.core.optimizer.costs.NestableLoadProfileEstimator

All Implemented Interfaces:

LoadProfileEstimator

public class NestableLoadProfileEstimator
extends Object
implements LoadProfileEstimator

LoadProfileEstimator that can host further LoadProfileEstimators.

Constructor Summary

Constructors

Constructor	Description
NestableLoadProfileEstimator(LoadEstimator cpuLoadEstimator, LoadEstimator ramLoadEstimator)	Creates an new instance.
NestableLoadProfileEstimator(LoadEstimator cpuLoadEstimator, LoadEstimator ramLoadEstimator, LoadEstimator diskLoadEstimator, LoadEstimator networkLoadEstimator)	Creates an new instance.
NestableLoadProfileEstimator(LoadEstimator cpuLoadEstimator, LoadEstimator ramLoadEstimator, LoadEstimator diskLoadEstimator, LoadEstimator networkLoadEstimator, FunctionDescriptor.SerializableToDoubleBiFunction<long[],long[]> resourceUtilizationEstimator, long overheadMillis)	Creates an new instance.
NestableLoadProfileEstimator(LoadEstimator cpuLoadEstimator, LoadEstimator ramLoadEstimator, LoadEstimator diskLoadEstimator, LoadEstimator networkLoadEstimator, FunctionDescriptor.SerializableToDoubleBiFunction<long[],long[]> resourceUtilizationEstimator, long overheadMillis, String configurationKey)	Creates an new instance.

Method Summary

Modifier and Type	Method	Description
LoadProfileEstimator	copy()	Optional operation. Copy this instance.
LoadProfile	estimate(EstimationContext context)	Estimates a LoadProfile.
String	getConfigurationKey()	Retrieve the Configuration key for this instance.
Collection<LoadProfileEstimator>	getNestedEstimators()	Retrieve nested instances.
void	nest(LoadProfileEstimator nestedEstimator)	Nest a LoadProfileEstimator in this instance.
String	toString()

Methods inherited from class java.lang.Object

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

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

getConfigurationKeys, getTemplateKey, getTemplateKeys

Constructor Details

NestableLoadProfileEstimator

public NestableLoadProfileEstimator(LoadEstimator cpuLoadEstimator,
 LoadEstimator ramLoadEstimator)

Creates an new instance.

Parameters:

cpuLoadEstimator - estimates CPU load in terms of cycles

ramLoadEstimator - estimates RAM load in terms of MB

NestableLoadProfileEstimator

public NestableLoadProfileEstimator(LoadEstimator cpuLoadEstimator,
 LoadEstimator ramLoadEstimator,
 LoadEstimator diskLoadEstimator,
 LoadEstimator networkLoadEstimator)

Creates an new instance.

Parameters:

cpuLoadEstimator - estimates CPU load in terms of cycles

ramLoadEstimator - estimates RAM load in terms of bytes

diskLoadEstimator - estimates disk accesses in terms of bytes

networkLoadEstimator - estimates network in terms of bytes

NestableLoadProfileEstimator

public NestableLoadProfileEstimator(LoadEstimator cpuLoadEstimator,
 LoadEstimator ramLoadEstimator,
 LoadEstimator diskLoadEstimator,
 LoadEstimator networkLoadEstimator,
 FunctionDescriptor.SerializableToDoubleBiFunction<long[],long[]> resourceUtilizationEstimator,
 long overheadMillis)

Creates an new instance.

Parameters:

cpuLoadEstimator - estimates CPU load in terms of cycles

ramLoadEstimator - estimates RAM load in terms of bytes

diskLoadEstimator - estimates disk accesses in terms of bytes

networkLoadEstimator - estimates network in terms of bytes

resourceUtilizationEstimator - degree to which the load profile can utilize available resources

overheadMillis - overhead that this load profile incurs

NestableLoadProfileEstimator

public NestableLoadProfileEstimator(LoadEstimator cpuLoadEstimator,
 LoadEstimator ramLoadEstimator,
 LoadEstimator diskLoadEstimator,
 LoadEstimator networkLoadEstimator,
 FunctionDescriptor.SerializableToDoubleBiFunction<long[],long[]> resourceUtilizationEstimator,
 long overheadMillis,
 String configurationKey)

Creates an new instance.

Parameters:

cpuLoadEstimator - estimates CPU load in terms of cycles

ramLoadEstimator - estimates RAM load in terms of bytes

diskLoadEstimator - estimates disk accesses in terms of bytes

networkLoadEstimator - estimates network in terms of bytes

resourceUtilizationEstimator - degree to which the load profile can utilize available resources

overheadMillis - overhead that this load profile incurs

configurationKey - from that this instances was perceived

Method Details

nest

public void nest(LoadProfileEstimator nestedEstimator)

Nest a LoadProfileEstimator in this instance. No artifact will be available to it, though.

Specified by:

nest in interface LoadProfileEstimator

Parameters:

nestedEstimator - the LoadProfileEstimator that should be nested

estimate

public LoadProfile estimate(EstimationContext context)

Description copied from interface: LoadProfileEstimator

Estimates a LoadProfile.

Specified by:

estimate in interface LoadProfileEstimator

Parameters:

context - provides parameters for the estimation

Returns:

the LoadProfile

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

copy

public LoadProfileEstimator copy()

Description copied from interface: LoadProfileEstimator

Optional operation. Copy this instance.

Specified by:

copy in interface LoadProfileEstimator

Returns:

the copy

toString

public String toString()

Overrides:

toString in class Object