Package de.hybris.platform.droolsruleengineservices.compiler.impl

Class DefaultDroolsRuleConditionsGenerator

java.lang.Object

de.hybris.platform.droolsruleengineservices.compiler.impl.DefaultDroolsRuleConditionsGenerator

All Implemented Interfaces:

DroolsRuleConditionsGenerator

public class DefaultDroolsRuleConditionsGenerator
extends java.lang.Object
implements DroolsRuleConditionsGenerator

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	DefaultDroolsRuleConditionsGenerator.Dependency
protected static class	DefaultDroolsRuleConditionsGenerator.DependencyComparator
protected static class	DefaultDroolsRuleConditionsGenerator.DroolsRuleConditionsGeneratorContext

Field Summary

Fields

Modifier and Type	Field	Description
static int	BUFFER_SIZE
static java.lang.String	NON_SUPPORTED_CONDITION

Constructor Summary

Constructors

Constructor	Description
DefaultDroolsRuleConditionsGenerator()

Method Summary

Modifier and Type	Method	Description
protected java.util.Set<DefaultDroolsRuleConditionsGenerator.Dependency>	buildDependencies(java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions)
protected void	collectTypeConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrCondition> conditions, java.util.Map<java.lang.String,RuleIrTypeCondition> typeConditions)
protected boolean	doesNotContainTargetCustomerConditions(RuleIrGroupCondition ruleIrGroupCondition, DroolsRuleGeneratorContext context, java.lang.String indentation)
protected java.lang.String	evaluateAttributeNameAndOperator(AbstractRuleIrAttributeCondition condition)
protected java.lang.String	evaluatePatternConditionType(DroolsRuleGeneratorContext context, AbstractRuleIrPatternCondition patternCondition)
protected java.lang.String	evaluatePatternConditionType(DroolsRuleGeneratorContext context, AbstractRuleIrPatternCondition patternCondition, java.util.function.Supplier<java.lang.String> variablePrefixSupplier)
protected RuleIrConditionsByType	evaluateRuleConditionType(java.util.List<RuleIrCondition> conditions)
protected void	expandDependencies(java.util.Set<DefaultDroolsRuleConditionsGenerator.Dependency> dependencies)
protected java.util.Collection<RuleIrCondition>	filterOutNonGroupConditions(java.util.Collection<RuleIrCondition> conditions)
protected RuleIrVariable	findVariable(DroolsRuleGeneratorContext context, java.lang.String variableName)
protected void	findVariablesOfPatternConditions(java.util.Collection<java.lang.String> variableNames, java.util.Collection<RuleIrCondition> conditions)
protected void	generateBooleanConditions(java.util.Map<java.lang.Boolean,java.util.Collection<AbstractRuleIrBooleanCondition>> booleanConditions, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
java.lang.String	generateConditions(DroolsRuleGeneratorContext context, java.lang.String indentation)	Generates the conditions for the Drools rule engine.
protected java.lang.String	generateConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrCondition> conditions, RuleIrGroupOperator operator, java.lang.String conditionPrefix, java.lang.String indentation)
protected void	generateExecutableConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrExecutableCondition> executableConditions, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
protected void	generateExistsConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrExistsCondition> existsConditions, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
protected void	generateGroupConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrGroupCondition> groupConditions, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
protected void	generateGroupConditions(java.util.List<RuleIrGroupCondition> groupConditions, java.util.function.Function<RuleIrGroupCondition,java.lang.String> generateConditionsFunction, java.util.StringJoiner conditionsJoiner)
protected void	generateNotConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrNotCondition> notConditions, java.util.function.Function<RuleIrNotCondition,java.lang.String> generateConditionsSupplier, java.util.StringJoiner conditionsJoiner)
protected void	generateNotConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrNotCondition> notConditions, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
protected void	generatePatternConditions(DroolsRuleGeneratorContext context, java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions, RuleIrGroupOperator groupOperator, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
java.lang.String	generateRequiredFactsCheckPattern(DroolsRuleGeneratorContext context)	Generates the required facts check pattern for the rule's LHS
java.lang.String	generateRequiredTypeVariables(DroolsRuleGeneratorContext context)	Generates the required type variables for the rule's LHS
protected void	generateUniqueFactMatchingCondition(DroolsRuleGeneratorContext context, RuleIrVariable variable, java.lang.StringBuilder conditionsBuffer, java.util.function.Supplier<java.lang.String> variablePrefixSupplier)	adds additional conditions like this != $v4_rao to OrderEntryRAO variables.
protected java.lang.String	generateWhenConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrCondition> conditions, RuleIrGroupOperator operator, java.lang.String conditionPrefix, java.lang.String indentation)
protected void	generateWhenGroupConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrGroupCondition> groupConditions, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
protected void	generateWhenNotConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrNotCondition> notConditions, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
protected void	generateWhenPatternConditions(DroolsRuleGeneratorContext context, java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions, RuleIrGroupOperator groupOperator, java.util.StringJoiner conditionsJoiner, java.lang.String indentation)
protected java.util.Collection<RuleIrCondition>	getConditionsInGroups(java.util.Collection<? extends RuleIrCondition> conditions)
protected ConfigurationService	getConfigurationService()
DroolsRuleValueFormatter	getDroolsRuleValueFormatter()
protected DroolsStringUtils	getDroolsStringUtils()
protected java.util.List<java.lang.String>	getExcludedQueryVariableClassNames()
protected java.util.List<java.lang.Class<?>>	getTypesToSkipOperatorEvaluation()
protected boolean	isAnyVariableReferredInAttrRelConditions(java.util.Collection<java.lang.String> variableNamesToCheck, java.util.Collection<? extends RuleIrCondition> others)
protected boolean	isAnyVariableReferredInConditions(java.util.Collection<java.lang.String> variableNamesToCheck, java.util.Collection<? extends RuleIrCondition> others)
protected boolean	isAnyVariableReferredInPatternConditions(java.util.Collection<java.lang.String> variableNamesToCheck, java.util.Collection<? extends RuleIrCondition> others)
protected boolean	isConditionDependentOnOthers(RuleIrCondition condition, java.util.Collection<? extends RuleIrCondition> others, java.util.Collection<java.lang.String> definedVariables)
protected boolean	isVariableTerminal(java.lang.String variableName, DroolsRuleGeneratorContext context)
protected boolean	isVariableTerminal(java.lang.String variableName, java.util.Collection<RuleIrCondition> conditions)
void	setConfigurationService(ConfigurationService configurationService)
void	setDroolsRuleValueFormatter(DroolsRuleValueFormatter droolsRuleValueFormatter)
void	setDroolsStringUtils(DroolsStringUtils droolsStringUtils)
void	setExcludedQueryVariableClassNames(java.util.List<java.lang.String> excludedQueryVariableClassNames)
void	setTypesToSkipOperatorEvaluation(java.util.List<java.lang.Class<?>> typesToSkipOperatorEvaluation)

Methods inherited from class java.lang.Object

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

Field Detail

NON_SUPPORTED_CONDITION

public static final java.lang.String NON_SUPPORTED_CONDITION

See Also:

Constant Field Values

BUFFER_SIZE

public static final int BUFFER_SIZE

See Also:

Constant Field Values

Constructor Detail

DefaultDroolsRuleConditionsGenerator

public DefaultDroolsRuleConditionsGenerator()

Method Detail

generateConditions

public java.lang.String generateConditions(DroolsRuleGeneratorContext context,
                                           java.lang.String indentation)

Description copied from interface: DroolsRuleConditionsGenerator

Generates the conditions for the Drools rule engine.

Specified by:

generateConditions in interface DroolsRuleConditionsGenerator

Parameters:

context - - the drools rule generator context

indentation - - the indentation

Returns:

the String representation

generateRequiredFactsCheckPattern

public java.lang.String generateRequiredFactsCheckPattern(DroolsRuleGeneratorContext context)

Description copied from interface: DroolsRuleConditionsGenerator

Generates the required facts check pattern for the rule's LHS

Specified by:

generateRequiredFactsCheckPattern in interface DroolsRuleConditionsGenerator

Parameters:

context - - the drools rule generator context

Returns:

string, containing the check pattern

generateRequiredTypeVariables

public java.lang.String generateRequiredTypeVariables(DroolsRuleGeneratorContext context)

Description copied from interface: DroolsRuleConditionsGenerator

Generates the required type variables for the rule's LHS

Specified by:

generateRequiredTypeVariables in interface DroolsRuleConditionsGenerator

Parameters:

context - - the drools rule generator context

Returns:

string, containing the type variables

collectTypeConditions

protected void collectTypeConditions(DroolsRuleGeneratorContext context,
                                     java.util.List<RuleIrCondition> conditions,
                                     java.util.Map<java.lang.String,RuleIrTypeCondition> typeConditions)

generateWhenConditions

protected java.lang.String generateWhenConditions(DroolsRuleGeneratorContext context,
                                                  java.util.List<RuleIrCondition> conditions,
                                                  RuleIrGroupOperator operator,
                                                  java.lang.String conditionPrefix,
                                                  java.lang.String indentation)

doesNotContainTargetCustomerConditions

protected boolean doesNotContainTargetCustomerConditions(RuleIrGroupCondition ruleIrGroupCondition,
                                                         DroolsRuleGeneratorContext context,
                                                         java.lang.String indentation)

isConditionDependentOnOthers

protected boolean isConditionDependentOnOthers(RuleIrCondition condition,
                                               java.util.Collection<? extends RuleIrCondition> others,
                                               java.util.Collection<java.lang.String> definedVariables)

isAnyVariableReferredInConditions

protected boolean isAnyVariableReferredInConditions(java.util.Collection<java.lang.String> variableNamesToCheck,
                                                    java.util.Collection<? extends RuleIrCondition> others)

isAnyVariableReferredInPatternConditions

protected boolean isAnyVariableReferredInPatternConditions(java.util.Collection<java.lang.String> variableNamesToCheck,
                                                           java.util.Collection<? extends RuleIrCondition> others)

isAnyVariableReferredInAttrRelConditions

protected boolean isAnyVariableReferredInAttrRelConditions(java.util.Collection<java.lang.String> variableNamesToCheck,
                                                           java.util.Collection<? extends RuleIrCondition> others)

findVariablesOfPatternConditions

protected void findVariablesOfPatternConditions(java.util.Collection<java.lang.String> variableNames,
                                                java.util.Collection<RuleIrCondition> conditions)

getConditionsInGroups

protected java.util.Collection<RuleIrCondition> getConditionsInGroups(java.util.Collection<? extends RuleIrCondition> conditions)

filterOutNonGroupConditions

protected java.util.Collection<RuleIrCondition> filterOutNonGroupConditions(java.util.Collection<RuleIrCondition> conditions)

generateConditions

protected java.lang.String generateConditions(DroolsRuleGeneratorContext context,
                                              java.util.List<RuleIrCondition> conditions,
                                              RuleIrGroupOperator operator,
                                              java.lang.String conditionPrefix,
                                              java.lang.String indentation)

evaluateRuleConditionType

protected RuleIrConditionsByType evaluateRuleConditionType(java.util.List<RuleIrCondition> conditions)

generateBooleanConditions

protected void generateBooleanConditions(java.util.Map<java.lang.Boolean,java.util.Collection<AbstractRuleIrBooleanCondition>> booleanConditions,
                                         java.util.StringJoiner conditionsJoiner,
                                         java.lang.String indentation)

generateWhenPatternConditions

protected void generateWhenPatternConditions(DroolsRuleGeneratorContext context,
                                             java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions,
                                             RuleIrGroupOperator groupOperator,
                                             java.util.StringJoiner conditionsJoiner,
                                             java.lang.String indentation)

isVariableTerminal

protected boolean isVariableTerminal(java.lang.String variableName,
                                     DroolsRuleGeneratorContext context)

isVariableTerminal

protected boolean isVariableTerminal(java.lang.String variableName,
                                     java.util.Collection<RuleIrCondition> conditions)

generatePatternConditions

protected void generatePatternConditions(DroolsRuleGeneratorContext context,
                                         java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions,
                                         RuleIrGroupOperator groupOperator,
                                         java.util.StringJoiner conditionsJoiner,
                                         java.lang.String indentation)

evaluateAttributeNameAndOperator

protected java.lang.String evaluateAttributeNameAndOperator(AbstractRuleIrAttributeCondition condition)

evaluatePatternConditionType

protected java.lang.String evaluatePatternConditionType(DroolsRuleGeneratorContext context,
                                                        AbstractRuleIrPatternCondition patternCondition)

evaluatePatternConditionType

protected java.lang.String evaluatePatternConditionType(DroolsRuleGeneratorContext context,
                                                        AbstractRuleIrPatternCondition patternCondition,
                                                        java.util.function.Supplier<java.lang.String> variablePrefixSupplier)

generateUniqueFactMatchingCondition

protected void generateUniqueFactMatchingCondition(DroolsRuleGeneratorContext context,
                                                   RuleIrVariable variable,
                                                   java.lang.StringBuilder conditionsBuffer,
                                                   java.util.function.Supplier<java.lang.String> variablePrefixSupplier)

adds additional conditions like this != $v4_rao to OrderEntryRAO variables. Example: $rao_v5 := OrderEntryRAO(this != $rao_v4, productCode == "478828". This is a performance improvement that reduces matching efforts for drools. Note: If multiple containers define the same set of products / categories this can have a functional impact (i.e. the promotion might not fire) if the containers are supposed to match the same cart entry. Ideally, containers should not contain any overlap in their defined products/categories, but if business needs requires such a setup of containers, this functionality can be turned off by setting the propery droolsruleengineservices.generate.unique.fact.matching.condition=false, followed by recompilation of the promotions.

Parameters:

context -

variable -

conditionsBuffer -

variablePrefixSupplier -

generateWhenGroupConditions

protected void generateWhenGroupConditions(DroolsRuleGeneratorContext context,
                                           java.util.List<RuleIrGroupCondition> groupConditions,
                                           java.util.StringJoiner conditionsJoiner,
                                           java.lang.String indentation)

generateGroupConditions

protected void generateGroupConditions(DroolsRuleGeneratorContext context,
                                       java.util.List<RuleIrGroupCondition> groupConditions,
                                       java.util.StringJoiner conditionsJoiner,
                                       java.lang.String indentation)

generateGroupConditions

protected void generateGroupConditions(java.util.List<RuleIrGroupCondition> groupConditions,
                                       java.util.function.Function<RuleIrGroupCondition,java.lang.String> generateConditionsFunction,
                                       java.util.StringJoiner conditionsJoiner)

generateExistsConditions

protected void generateExistsConditions(DroolsRuleGeneratorContext context,
                                        java.util.List<RuleIrExistsCondition> existsConditions,
                                        java.util.StringJoiner conditionsJoiner,
                                        java.lang.String indentation)

generateNotConditions

protected void generateNotConditions(DroolsRuleGeneratorContext context,
                                     java.util.List<RuleIrNotCondition> notConditions,
                                     java.util.StringJoiner conditionsJoiner,
                                     java.lang.String indentation)

generateWhenNotConditions

protected void generateWhenNotConditions(DroolsRuleGeneratorContext context,
                                         java.util.List<RuleIrNotCondition> notConditions,
                                         java.util.StringJoiner conditionsJoiner,
                                         java.lang.String indentation)

generateNotConditions

protected void generateNotConditions(DroolsRuleGeneratorContext context,
                                     java.util.List<RuleIrNotCondition> notConditions,
                                     java.util.function.Function<RuleIrNotCondition,java.lang.String> generateConditionsSupplier,
                                     java.util.StringJoiner conditionsJoiner)

generateExecutableConditions

protected void generateExecutableConditions(DroolsRuleGeneratorContext context,
                                            java.util.List<RuleIrExecutableCondition> executableConditions,
                                            java.util.StringJoiner conditionsJoiner,
                                            java.lang.String indentation)

findVariable

protected RuleIrVariable findVariable(DroolsRuleGeneratorContext context,
                                      java.lang.String variableName)

buildDependencies

protected java.util.Set<DefaultDroolsRuleConditionsGenerator.Dependency> buildDependencies(java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions)

expandDependencies

protected void expandDependencies(java.util.Set<DefaultDroolsRuleConditionsGenerator.Dependency> dependencies)

getDroolsRuleValueFormatter

public DroolsRuleValueFormatter getDroolsRuleValueFormatter()

setDroolsRuleValueFormatter

public void setDroolsRuleValueFormatter(DroolsRuleValueFormatter droolsRuleValueFormatter)

getExcludedQueryVariableClassNames

protected java.util.List<java.lang.String> getExcludedQueryVariableClassNames()

setExcludedQueryVariableClassNames

public void setExcludedQueryVariableClassNames(java.util.List<java.lang.String> excludedQueryVariableClassNames)

getTypesToSkipOperatorEvaluation

protected java.util.List<java.lang.Class<?>> getTypesToSkipOperatorEvaluation()

setTypesToSkipOperatorEvaluation

public void setTypesToSkipOperatorEvaluation(java.util.List<java.lang.Class<?>> typesToSkipOperatorEvaluation)

getConfigurationService

protected ConfigurationService getConfigurationService()

setConfigurationService

public void setConfigurationService(ConfigurationService configurationService)

getDroolsStringUtils

protected DroolsStringUtils getDroolsStringUtils()

setDroolsStringUtils

public void setDroolsStringUtils(DroolsStringUtils droolsStringUtils)