atg.commerce.pricing
Class BandedDiscountCalculatorHelper

java.lang.Object
  atg.nucleus.logging.VariableArgumentApplicationLoggingImpl
      atg.nucleus.logging.ApplicationLoggingImpl
          atg.commerce.pricing.BandedDiscountCalculatorHelper

All Implemented Interfaces:

ApplicationLogging, atg.nucleus.logging.ApplicationLoggingSender, atg.nucleus.logging.TraceApplicationLogging, VariableArgumentApplicationLogging

public class BandedDiscountCalculatorHelper
extends ApplicationLoggingImpl

A helper class with methods common to all banded calculators for use.

Nested Class Summary

class

BandedDiscountCalculatorHelper.Band Internal class to represent a band in the banded promotion

Field Summary

static java.lang.String	ADJUSTER_ATTRIBUTE PMDL 'adjuster' attribute
static java.lang.String	BAND_ATTRIBUTE PMDL 'band' attribute
static java.lang.String	BANDING_PROPERTY_ATTRIBUTE PMDL 'bandingProperty' attribute
static java.lang.String	BANDING_PROPERTY_SCOPE_ATTRIBUTE PMDL 'bandingPropertyScope' attribute
static java.lang.String	BANDING_PROPERTY_SCOPE_DIPI PMDL banding property scope - "DetailedItemPriceInfo"
static java.lang.String	BANDING_PROPERTY_SCOPE_QUALIFIED_ITEM PMDL banding property scope - "QualifiedItem"
static java.lang.String	CLASS_VERSION Class version string

Fields inherited from interface atg.nucleus.logging.TraceApplicationLogging

DEFAULT_LOG_TRACE_STATUS

Fields inherited from interface atg.nucleus.logging.ApplicationLogging

DEFAULT_LOG_DEBUG_STATUS, DEFAULT_LOG_ERROR_STATUS, DEFAULT_LOG_INFO_STATUS, DEFAULT_LOG_WARNING_STATUS

Constructor Summary

BandedDiscountCalculatorHelper()
Constructor.

Method Summary

protected double	calculateBandingValue(java.lang.String pBandingPropertyScope, java.util.Map<java.lang.String,java.lang.Object> pObjectBindings, java.util.Collection pQualifiedItems) Determines the banding value to use.
protected java.util.Map<java.lang.String,java.lang.Object>	createBindings(java.lang.String pBandingProperty, java.util.Map pExtraParameters) Method to create an object bindings map with the objects that are required to determine the banding property value.
protected BandedDiscountCalculatorHelper.Band	determineBand(double pBandingValue, java.util.List<BandedDiscountCalculatorHelper.Band> pBands) Determines which band to use based on the banding value.
protected java.util.List<BandedDiscountCalculatorHelper.Band>	determineBands(java.util.List<DiscountDetail> pDetails) Determines the bands from the discount details and sorts them.
double	getAdjuster(RepositoryItem pPricingModel, java.util.Collection pQualifiedItems, java.util.Map pExtraParameters, java.lang.String pDefaultBandingProperty, java.lang.String pDefaultBandingPropertyScope) Determines the amount of adjustment to apply.
protected double	getBandingPropertyValue(java.util.Map<java.lang.String,java.lang.Object> pObjectBindings) This method resolves the banding property value.
CalculatorInfo	getCalculatorInfo(java.lang.String pCalculatorType) Provide a CalculatorInfo for the calculator

Methods inherited from class atg.nucleus.logging.ApplicationLoggingImpl

addGlobalLogListeners, addLogListener, getLoggingForVlogging, getLoggingIdentifer, getLoggingIdentifier, getLogListenerCount, getLogListeners, initializeFromServiceEvent, isAutoInitListeners, isLoggingDebug, isLoggingError, isLoggingInfo, isLoggingTrace, isLoggingWarning, logDebug, logDebug, logDebug, logError, logError, logError, logInfo, logInfo, logInfo, logTrace, logTrace, logTrace, logWarning, logWarning, logWarning, removeLogListener, sendLogEvent, setAutoInitListeners, setLoggingDebug, setLoggingError, setLoggingIdentifier, setLoggingInfo, setLoggingTrace, setLoggingWarning

Methods inherited from class atg.nucleus.logging.VariableArgumentApplicationLoggingImpl

vlogDebug, vlogDebug, vlogDebug, vlogDebug, vlogError, vlogError, vlogError, vlogError, vlogInfo, vlogInfo, vlogInfo, vlogInfo, vlogTrace, vlogTrace, vlogTrace, vlogTrace, vlogWarning, vlogWarning, vlogWarning, vlogWarning

Methods inherited from class java.lang.Object

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

Field Detail

CLASS_VERSION

public static final java.lang.String CLASS_VERSION

Class version string

See Also:

Constant Field Values

BANDING_PROPERTY_ATTRIBUTE

public static final java.lang.String BANDING_PROPERTY_ATTRIBUTE

PMDL 'bandingProperty' attribute

See Also:

Constant Field Values

BANDING_PROPERTY_SCOPE_ATTRIBUTE

public static final java.lang.String BANDING_PROPERTY_SCOPE_ATTRIBUTE

PMDL 'bandingPropertyScope' attribute

See Also:

Constant Field Values

BAND_ATTRIBUTE

public static final java.lang.String BAND_ATTRIBUTE

PMDL 'band' attribute

See Also:

Constant Field Values

ADJUSTER_ATTRIBUTE

public static final java.lang.String ADJUSTER_ATTRIBUTE

PMDL 'adjuster' attribute

See Also:

Constant Field Values

BANDING_PROPERTY_SCOPE_DIPI

public static final java.lang.String BANDING_PROPERTY_SCOPE_DIPI

PMDL banding property scope - "DetailedItemPriceInfo"

See Also:

Constant Field Values

BANDING_PROPERTY_SCOPE_QUALIFIED_ITEM

public static final java.lang.String BANDING_PROPERTY_SCOPE_QUALIFIED_ITEM

PMDL banding property scope - "QualifiedItem"

See Also:

Constant Field Values

Constructor Detail

BandedDiscountCalculatorHelper

public BandedDiscountCalculatorHelper()

Constructor. Sets logging name.

Method Detail

getAdjuster

public double getAdjuster(RepositoryItem pPricingModel,
                          java.util.Collection pQualifiedItems,
                          java.util.Map pExtraParameters,
                          java.lang.String pDefaultBandingProperty,
                          java.lang.String pDefaultBandingPropertyScope)
                   throws PricingException

Determines the amount of adjustment to apply. First checks for a discount structure in the extra parameters map. If not found then the method will determine which band of the discount structure to use and obtain the adjuster accordingly. If no band is found then it return NaN as the adjuster.

Parameters:

pPricingModel - RepositoryItem pricing model

pQualifiedItems - Collection of QualifiedItem objects

pExtraParameters - Map of optional extra parameters, may be null

pDefaultBandingProperty - String default banding property to use

pDefaultBandingPropertyScope - String default banding property scope to use

Returns:

double adjuster to use or NaN if no valid band found.

Throws:

PricingException - if the method fails to get a valid double adjuster

createBindings

protected java.util.Map<java.lang.String,java.lang.Object> createBindings(java.lang.String pBandingProperty,
                                                                          java.util.Map pExtraParameters)
                                                                   throws PricingException

Method to create an object bindings map with the objects that are required to determine the banding property value. This method will first parse out the passed in pBandingProperty string by looking for the first dot '.' character. This will parse out the bean name and property name to use. The property name is stored in the returned map with the key Constants.BINDING_KEY_BANDING_BEAN_PROPERTY_NAME. If the bean name starts with a '/' then it is assumed to be a nucleus component and is resolved. Otherwise if the bean name corresponds to the extra parameters map or the pricing context then the bean is set accordingly. If the bean is determined then it is stored in the returned map with the key Constants.BINDING_KEY_BANDING_BEAN. Otherwise the bean name is stored with the key Constants.BINDING_KEY_BANDING_BEAN_NAME.

Parameters:

pBandingProperty - String banding property name

pExtraParameters - Map of extra parameters

Returns:

Map of bound objects

Throws:

PricingException

calculateBandingValue

protected double calculateBandingValue(java.lang.String pBandingPropertyScope,
                                       java.util.Map<java.lang.String,java.lang.Object> pObjectBindings,
                                       java.util.Collection pQualifiedItems)
                                throws PricingException

Determines the banding value to use. If the banding property scope is QualifiedItem then this method will get the total matching quantity for each QualifiedItem and get the banding property value for each QualfiedItem and sum (quantity * banding property value). If the banding property scope is DetailedItemPriceInfo then this method will get the matching quantity for each DetailedItemPriceInfo and get the banding property value for each DetailedItemPriceInfo and sum (quantity * banding property value). If the banding property scope is null then this method will just return the banding property value. If the banding property scope is not null then pQualifiedItems must not be null. The banding property value is obtained by calling the getBandingPropertyValue method. Note: The pObjectBindings map must already be setup before calling into this method. This is normally done through the createBindings method.

Parameters:

pBandingPropertyScope - String bandingPropertyScope "QualifiedItem", "DetailedItemPriceInfo" or null.

pObjectBindings - Map of banded property objects to use.

pQualifiedItems - Collection of QualifiedItem objects, can only be null if scope is null.

Returns:

double banding value to use

Throws:

PricingException - for any problems determining the banding value to use.

getBandingPropertyValue

protected double getBandingPropertyValue(java.util.Map<java.lang.String,java.lang.Object> pObjectBindings)
                                  throws PricingException

This method resolves the banding property value. It requires that pObjectBindings is already correctly setup (usually through the createBindings method). pObjectBindings should contain the property name to use and either the bean object or the bean name to use. If the bean is not provided then the bean name is used to lookup the bean in pObjectBindings. The method will use dynamic beans to resolve the property value using the bean and the property name. If the bandingProperty is null then the bean and property name will be null so this method will return 1.0d, i.e. just the quantity of the item will be used in the calculation.

Parameters:

pObjectBindings - Map of banding property objects to use

Returns:

double property value to use.

Throws:

PricingException - if it fails to resolve the property value.

determineBands

protected java.util.List<BandedDiscountCalculatorHelper.Band> determineBands(java.util.List<DiscountDetail> pDetails)
                                                                      throws PricingException

Determines the bands from the discount details and sorts them.

Parameters:

pDetails - List of DiscountDetail from the discount structure

Returns:

List of Band objects in sorted order

Throws:

PricingException - for problems creating the bands, must be at least one band.

determineBand

protected BandedDiscountCalculatorHelper.Band determineBand(double pBandingValue,
                                                            java.util.List<BandedDiscountCalculatorHelper.Band> pBands)

Determines which band to use based on the banding value.

Parameters:

pBandingValue - double banding value to match with

pBands - List of Band objects to search

Returns:

Band to use or null if no valid band

getCalculatorInfo

public CalculatorInfo getCalculatorInfo(java.lang.String pCalculatorType)

Provide a CalculatorInfo for the calculator

Parameters:

pCalculatorType - String calculator type to set

Returns:

CalculatorInfo