dk.deepthought.sidious.ruleengine
Class RuleEngineImpl

java.lang.Object
  dk.deepthought.sidious.ruleengine.RuleEngineImpl

All Implemented Interfaces:

RuleEngine

public class RuleEngineImpl
extends java.lang.Object
implements RuleEngine

Field Summary

private static org.apache.commons.logging.Log

logger Logger for this class

Constructor Summary

RuleEngineImpl()

Method Summary

double	evaluate(SuperLinkID requesterID, State current, State next, Step step) This method evaluates the rules associated with the given plan requester.
(package private) double	evaluateRules(java.util.Collection<Rule> rules, State current, State next, Step step) This method evaluates each of the input rules according to the input states (current and next), and returns a combined value.
java.util.Collection<Goal>	extractGoals(SuperLinkID requesterID) This method extracts the goals of the specified PlanRequester.
(package private) java.util.Collection<Goal>	extractGoalsFromRules(java.util.Collection<Rule> rules) Method extracts and returns all goals from the input rules.

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final org.apache.commons.logging.Log logger

Logger for this class

Constructor Detail

RuleEngineImpl

public RuleEngineImpl()

Method Detail

evaluate

public double evaluate(SuperLinkID requesterID,
                       State current,
                       State next,
                       Step step)

Description copied from interface: RuleEngine

This method evaluates the rules associated with the given plan requester.

The calculation is based upon the state change from current to next.

Specified by:

evaluate in interface RuleEngine

Parameters:

requesterID - the ID of the plan requester

current - the current state

next - the next state

step - the step

Returns:

the combined evaluation.

evaluateRules

double evaluateRules(java.util.Collection<Rule> rules,
                     State current,
                     State next,
                     Step step)

This method evaluates each of the input rules according to the input states (current and next), and returns a combined value.

Parameters:

rules - the input collection of rules

current - the current state

next - the next state

step - the step

Returns:

a combined evaluation, 0 if rules is empty

extractGoals

public java.util.Collection<Goal> extractGoals(SuperLinkID requesterID)

Description copied from interface: RuleEngine

This method extracts the goals of the specified PlanRequester.

Specified by:

extractGoals in interface RuleEngine

Parameters:

requesterID - the id of the plan requester

Returns:

the extracted goals

extractGoalsFromRules

java.util.Collection<Goal> extractGoalsFromRules(java.util.Collection<Rule> rules)

Method extracts and returns all goals from the input rules.

Parameters:

rules - the rules the goals will be extracted from

Returns:

the extracted goals