be.ac.ua.broker.input.pricing
Class SpotCSVHandler

java.lang.Object
  be.ac.ua.broker.input.pricing.CSVHandler
      be.ac.ua.broker.input.pricing.SpotCSVHandler

public class SpotCSVHandler
extends CSVHandler

Class that extends the CSVHandler in order to handle spot price access

Author:

Vermeersch Kurt

Field Summary

Fields inherited from class be.ac.ua.broker.input.pricing.CSVHandler

fContents

Constructor Summary

SpotCSVHandler(java.lang.String inputLocation)
Constructor for SpotCSVHandler

Method Summary

java.lang.Double	getHighValue(InstanceSpecification inst, java.util.Date start, java.util.Date end, int index) Get the spot price value that is the tipping point bid that enables the optimal scheduling of the subtasks
org.apache.commons.math.stat.descriptive.DescriptiveStatistics	getSpotStatistics(InstanceSpecification inst, java.util.Date start, java.util.Date end) Getter for the spot price history statistics within the given time frame for the given instance specification
java.lang.String	getSpotValue(InstanceSpecification inst, java.util.Date timestamp) Getter for the spot price of the given instance at a certain moment in time using the pricing model associated with the PriceWatch implementation
void	update(java.lang.String inputLocation) Update the spot price access, reload the prices form file.

Methods inherited from class be.ac.ua.broker.input.pricing.CSVHandler

getHighValue, getStatistics, getValue, parse

Methods inherited from class java.lang.Object

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

Constructor Detail

SpotCSVHandler

public SpotCSVHandler(java.lang.String inputLocation)

Constructor for SpotCSVHandler

Parameters:

inputLocation - the location of the spot price history input files

Method Detail

getSpotValue

public java.lang.String getSpotValue(InstanceSpecification inst,
                                     java.util.Date timestamp)
                              throws InstanceNotAvailableException

Getter for the spot price of the given instance at a certain moment in time using the pricing model associated with the PriceWatch implementation

Parameters:

inst - the instance specification to get the spot price for

timestamp - time to get the spot price for

Returns:

the price for the given instance at the given moment in time

Throws:

InstanceNotAvailableException

update

public void update(java.lang.String inputLocation)

Update the spot price access, reload the prices form file.

Parameters:

inputLocation - the location of the spot price history input files

getSpotStatistics

public org.apache.commons.math.stat.descriptive.DescriptiveStatistics getSpotStatistics(InstanceSpecification inst,
                                                                                        java.util.Date start,
                                                                                        java.util.Date end)
                                                                                 throws InstanceNotAvailableException

Getter for the spot price history statistics within the given time frame for the given instance specification

Parameters:

inst - the instance specification to get the spot price statistics for

start - the start date of the time frame to get the spot price statistics for

end - the end date of the time frame to get the spot price statistics for

Returns:

the spot price statistics that were requested for a certain instance specification and time frame

Throws:

InstanceNotAvailableException

getHighValue

public java.lang.Double getHighValue(InstanceSpecification inst,
                                     java.util.Date start,
                                     java.util.Date end,
                                     int index)
                              throws InstanceNotAvailableException

Get the spot price value that is the tipping point bid that enables the optimal scheduling of the subtasks

Parameters:

inst - the instance specification to get the spot bid for

start - the start of the time frame to get the spot bid for

end - the end of the time frame to get the spot bid for

index - number of hours the spot price does not need to be available

Returns:

the requested spot price value

Throws:

java.lang.Exception

InstanceNotAvailableException