be.ac.ua.broker.input.pricing
Class EC2OnDemandPriceWatch

java.lang.Object
  be.ac.ua.broker.input.pricing.EC2OnDemandPriceWatch

All Implemented Interfaces:

PriceWatch

public class EC2OnDemandPriceWatch
extends java.lang.Object
implements PriceWatch

This class provides access to the EC2 on-demand prices that are inputted through CSV files to the broker

Author:

Vermeersch Kurt

Field Summary

static java.lang.String

ONDEMAND_INPUT Location of the input files containing the on-demand prices.

Constructor Summary

EC2OnDemandPriceWatch()
Constructor for EC2OnDemandPriceWatch

EC2OnDemandPriceWatch(java.lang.String inputLocation)
Constructor for EC2OnDemandPriceWatch

Method Summary

OnDemandPrice	getPrice(InstanceSpecification inst) Getter for the price of the given instance using the pricing model associated with the PriceWatch implementation
Price	getPrice(InstanceSpecification inst, java.util.Date timestamp) Getter for the price of the given instance at a certain moment in time using the pricing model associated with the PriceWatch implementation
java.lang.String	getPricingModel()
void	update() Update the prices that are returned by the PriceWatch implementation, reread prices from CSV files for example

Methods inherited from class java.lang.Object

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

Field Detail

ONDEMAND_INPUT

public static java.lang.String ONDEMAND_INPUT

Location of the input files containing the on-demand prices.

Constructor Detail

EC2OnDemandPriceWatch

public EC2OnDemandPriceWatch()

Constructor for EC2OnDemandPriceWatch

EC2OnDemandPriceWatch

public EC2OnDemandPriceWatch(java.lang.String inputLocation)

Constructor for EC2OnDemandPriceWatch

Parameters:

inputLocation - the location of the input files containing the on-demand prices.

Method Detail

getPrice

public OnDemandPrice getPrice(InstanceSpecification inst)
                       throws InstanceNotAvailableException

Description copied from interface: PriceWatch

Getter for the price of the given instance using the pricing model associated with the PriceWatch implementation

Specified by:

getPrice in interface PriceWatch

Parameters:

inst - the instance specification to get the price for

Returns:

the price for the given instance

Throws:

InstanceNotAvailableException

update

public void update()

Description copied from interface: PriceWatch

Update the prices that are returned by the PriceWatch implementation, reread prices from CSV files for example

Specified by:

update in interface PriceWatch

getPricingModel

public java.lang.String getPricingModel()

Specified by:

getPricingModel in interface PriceWatch

Returns:

name of the pricing model this access point was created for

getPrice

public Price getPrice(InstanceSpecification inst,
                      java.util.Date timestamp)
               throws InstanceNotAvailableException

Description copied from interface: PriceWatch

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

Specified by:

getPrice in interface PriceWatch

Parameters:

inst - the instance specification to get the price for

timestamp - time to get the price for

Returns:

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

Throws:

InstanceNotAvailableException