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

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

Direct Known Subclasses:

SpotCSVHandler

public class CSVHandler
extends java.lang.Object

Class that uses java CSV reader to read in the data from the CSV file downloaded from the cloudexchange.org website

Author:

Vermeersch Kurt

See Also:

http://sourceforge.net/projects/javacsv/

Field Summary

protected java.util.List<java.util.List<java.lang.String>>

fContents List of list in which the contents of the CSV file are stored

Constructor Summary

CSVHandler()

Method Summary

java.lang.Double	getHighValue(CSVFilterInterface filter, 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	getStatistics(CSVFilterInterface filter) Function that generates a list of statistics object using the contents that were found in the input CSV file
java.lang.String	getValue(java.lang.String inst, java.lang.String reg, java.lang.String os) Get the price from the CSV file that is stated for the given instance type, geographical region and operating system.
void	parse(java.lang.String inputFile) Parse the given CSV file and store its contents

Methods inherited from class java.lang.Object

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

Field Detail

fContents

protected java.util.List<java.util.List<java.lang.String>> fContents

List of list in which the contents of the CSV file are stored

Constructor Detail

CSVHandler

public CSVHandler()

Method Detail

parse

public void parse(java.lang.String inputFile)

Parse the given CSV file and store its contents

Parameters:

inputFile - the input CSV file to parse and to analyze the content of

getValue

public java.lang.String getValue(java.lang.String inst,
                                 java.lang.String reg,
                                 java.lang.String os)
                          throws InstanceNotAvailableException

Get the price from the CSV file that is stated for the given instance type, geographical region and operating system.

Parameters:

inst - the instance type to get the price for

reg - the geographical region to get the price for

os - the operating system to get the price for

Returns:

the price for an instance with the provided parameter values.

Throws:

InstanceNotAvailableException

getStatistics

public org.apache.commons.math.stat.descriptive.DescriptiveStatistics getStatistics(CSVFilterInterface filter)

Function that generates a list of statistics object using the contents that were found in the input CSV file

Parameters:

filter - filter that decides whether a certain data item is still part of the filtered contents

Returns:

a list of statistics object

getHighValue

public java.lang.Double getHighValue(CSVFilterInterface filter,
                                     int index)
                              throws java.lang.Exception

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

Parameters:

filter - the date filter of the time frame in which the spot prices need to be analyzed

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

Returns:

the spot price value

Throws:

java.lang.Exception