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 and Description
protected static class	DefaultDroolsRuleConditionsGenerator.Dependency
protected static class	DefaultDroolsRuleConditionsGenerator.DependencyComparator

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
DefaultDroolsRuleConditionsGenerator()

Method Summary

Modifier and Type	Method and Description
protected java.util.Set<DefaultDroolsRuleConditionsGenerator.Dependency>	buildDependencies(java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions)
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)
protected java.lang.String	generateConditions(DroolsRuleGeneratorContext context, java.util.List<RuleIrCondition> conditions, RuleIrGroupOperator operator, java.lang.String conditionPrefix, java.lang.String indentation)
java.lang.String	generateConditions(DroolsRuleGeneratorContext context, java.lang.String indentation) Generates the conditions for the Drools rule engine.
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
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)
DroolsRuleValueFormatter	getDroolsRuleValueFormatter()
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, java.util.Collection<RuleIrCondition> conditions)
protected boolean	isVariableTerminal(java.lang.String variableName, DroolsRuleGeneratorContext context)
protected boolean	isVariableTerminal(java.lang.String variableName, java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions) Deprecated. since 6.7. Use method isVariableTerminal(String, DroolsRuleGeneratorContext) instead.
void	setDroolsRuleValueFormatter(DroolsRuleValueFormatter droolsRuleValueFormatter)

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

generateWhenConditions

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

@Deprecated
protected boolean isVariableTerminal(java.lang.String variableName,
                                                 java.util.Map<java.lang.String,java.util.Collection<AbstractRuleIrPatternCondition>> patternConditions)

Deprecated. since 6.7. Use method isVariableTerminal(String, DroolsRuleGeneratorContext) instead.

verifies if the specified variable is terminal (non referenced by any other condition)

Parameters:

variableName - name of the variable to check

patternConditions - the map of all available conditions

Returns:

true if the variable is terminal

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)

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)

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)