[rules-users] Error selecting order decrease [planner]
André Fróes
arfmoraes at gmail.com
Mon Jan 28 10:40:58 EST 2013
I'm comparing both the example and my implementation, can't see anything
different from each other except that example uses that
CloudBalancingGenerator. Even the drl rule remains the same, i wrote it and
then fixed the errors until reach that point.
2013/1/28 André Fróes <arfmoraes at gmail.com>
> this is the full drl file:
>
> ------------
>
> package com.swa.planner.domain.rule;
>
> import
> org.drools.planner.core.score.buildin.hardandsoft.HardAndSoftScoreHolder;
> import org.drools.planner.core.score.constraint.IntConstraintOccurrence;
> import org.drools.planner.core.score.constraint.ConstraintType;
>
> import com.swa.planner.domain.CloudBalance;
> import com.swa.planner.domain.CloudComputer;
> import com.swa.planner.domain.CloudProcess;
>
> global HardAndSoftScoreHolder scoreHolder;
>
> rule "requiredCpuPowerTotal"
> when
> $computer : CloudComputer($cpuPower : cpuPower)
> $requiredCpuPowerTotal : Number(intValue > $cpuPower) from accumulate(
> CloudProcess (
> computer == $computer,
> $requiredCpuPower : requiredCpuPower),
> sum($requiredCpuPower)
> )
> then
> insertLogical(new IntConstraintOccurrence("requiredCpuPowerTotal",
> ConstraintType.NEGATIVE_HARD,
> $requiredCpuPowerTotal.intValue() - $cpuPower,
> $computer));
> end
>
> rule "requiredMemoryTotal"
> when
> $computer : CloudComputer($memory : memory)
> $requiredMemoryTotal : Number(intValue > $memory) from accumulate(
> CloudProcess (
> computer == $computer,
> $requiredMemory : requiredMemory),
> sum($requiredMemory)
> )
> then
> insertLogical(new IntConstraintOccurrence("requiredMemoryTotal",
> ConstraintType.NEGATIVE_HARD,
> $requiredMemoryTotal.intValue() - $memory,
> $computer));
> end
>
> rule "requiredNetworkBandwidth"
> when
> $computer : CloudComputer($networkBandwidth : networkBandwidth)
> $requiredNetworkBandwidthTotal : Number(intValue > $networkBandwidth) from
> accumulate(
> CloudProcess (
> computer == $computer,
> $requiredNetworkBandwidth : requiredNetworkBandwidth)
> sum($requiredNetworkBandwidth)
> )
> then
> insertLogical(new IntConstraintOccurrence("requiredNetworkBandwidth",
> ConstraintType.NEGATIVE_HARD,
> $requiredNetworkBandwidthTotal.intValue() - $networkBandwidth,
> $computer));
> end
>
> rule "hardConstraintBroken"
> salience -1
> when
> $hardTotal : Number() from accumulate(
> IntConstraintOccurrence(constraintType == ConstraintType.NEGATIVE_HARD,
> $weight : weight)
> sum($weight)
> )
> then
> scoreHolder.setHardConstraintsBroken($hardTotal.intValue());
> end
>
>
> // Soft constraint
>
> rule "computerCost"
> when
> $computer : CloudComputer($cost : cost)
> exists CloudProcess(computer == $computer)
> then
> insertLogical(new IntConstraintOccurrence("computerCost",
> ConstraintType.NEGATIVE_SOFT,
> $cost,
> $computer));
> end
>
> rule "softConstraintBroken"
> salience -1
> when
> $softTotal : Number() from accumulate(
> IntConstraintOccurrence(ConstraintType == ConstraintType.NEGATIVE_SOFT,
> $weight : weight)
> sum($weight)
> )
> then
> scoreHolder.setHardConstraintsBroken($softTotal.intValue());
> end
>
>
> 2013/1/28 Geoffrey De Smet <ge0ffrey.spam at gmail.com>
>
>> com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.defaultConsequence(Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.java:14)
>>
>> What's in the then side of Rule_requiredCpuPowerTotal ?
>>
>> Op 28-01-13 16:00, André Fróes schreef:
>>
>> Even adding that, the error still
>>
>> --------------
>> 12:57:41.050 [main] INFO o.d.p.core.solver.DefaultSolver - Solving
>> started: time spend (152), score (null), new best score (null), random seed
>> (0).
>> Exception in thread "main" Exception executing consequence for rule
>> "requiredCpuPowerTotal" in com.swa.planner.domain.rule:
>> java.lang.NullPointerException
>> at
>> org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
>> at
>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
>> at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
>> at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
>> at
>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
>> at
>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
>> at
>> org.drools.planner.core.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:177)
>> at
>> org.drools.planner.core.solver.scope.DefaultSolverScope.calculateScore(DefaultSolverScope.java:92)
>> at
>> org.drools.planner.core.phase.AbstractSolverPhaseScope.calculateScore(AbstractSolverPhaseScope.java:120)
>> at
>> org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.processMove(DefaultGreedyDecider.java:136)
>> at
>> org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.doMove(DefaultGreedyDecider.java:110)
>> at
>> org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.decideNextStep(DefaultGreedyDecider.java:82)
>> at
>> org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:65)
>> at
>> org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:190)
>> at
>> org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:155)
>> at com.swa.planner.domain.CloudTest.main(CloudTest.java:67)
>> Caused by: java.lang.NullPointerException
>> at java.lang.String.<init>(Unknown Source)
>> at org.mvel2.util.ErrorUtil.rewriteIfNeeded(ErrorUtil.java:12)
>> at
>> org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:302)
>> at
>> org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)
>> at org.mvel2.MVEL.compileExpression(MVEL.java:810)
>> at
>> org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)
>> at
>> org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)
>> at
>> org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)
>> at
>> org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)
>> at
>> org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157)
>> at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)
>> at
>> org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
>> at
>> org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
>> at
>> org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
>> at
>> org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
>> at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
>> at
>> org.drools.common.SimpleBeliefSystem.insert(SimpleBeliefSystem.java:38)
>> at
>> org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:204)
>> at
>> org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:176)
>> at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:231)
>> at
>> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
>> at
>> org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:245)
>> at
>> org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:210)
>> at
>> org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:205)
>> at
>> com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.defaultConsequence(Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.java:14)
>> at
>> com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987DefaultConsequenceInvokerGenerated.evaluate(Unknown
>> Source)
>> at
>> com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987DefaultConsequenceInvoker.evaluate(Unknown
>> Source)
>> at
>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
>> ... 14 more
>>
>> --------------
>>
>> I added to cloudprocess computer variable:
>> --------------
>> package com.swa.planner.domain;
>>
>> import org.drools.planner.api.domain.entity.PlanningEntity;
>> import org.drools.planner.api.domain.variable.PlanningVariable;
>> import org.drools.planner.api.domain.variable.ValueRange;
>> import org.drools.planner.api.domain.variable.ValueRangeType;
>> import org.drools.planner.examples.common.domain.AbstractPersistable;
>>
>> @PlanningEntity(difficultyComparatorClass =
>> CloudProcessDifficultyComparator.class)
>> public class CloudProcess extends AbstractPersistable{
>>
>> private int requiredCpuPower;
>> private int requiredMemory;
>> private int requiredNetworkBandwidth;
>>
>> private CloudComputer computer;
>>
>> public CloudProcess(long id, int requiredCpuPower, int requiredMemory,
>> int requiredNetworkBandwidth) {
>> super();
>> setId(id);
>> this.requiredCpuPower = requiredCpuPower;
>> this.requiredMemory = requiredMemory;
>> this.requiredNetworkBandwidth = requiredNetworkBandwidth;
>> }
>> public CloudProcess() { }
>>
>> public int getRequiredCpuPower() {
>> return requiredCpuPower;
>> }
>>
>> public void setRequiredCpuPower(int requiredCpuPower) {
>> this.requiredCpuPower = requiredCpuPower;
>> }
>>
>> public int getRequiredMemory() {
>> return requiredMemory;
>> }
>>
>> public void setRequiredMemory(int requiredMemory) {
>> this.requiredMemory = requiredMemory;
>> }
>>
>> public int getRequiredNetworkBandwidth() {
>> return requiredNetworkBandwidth;
>> }
>>
>> public void setRequiredNetworkBandwidth(int requiredNetworkBandwidth) {
>> this.requiredNetworkBandwidth = requiredNetworkBandwidth;
>> }
>>
>> public String getLabel() {
>> return "Process " + id;
>> }
>> @PlanningVariable(strengthComparatorClass =
>> CloudComputerStrengthComparator.class)
>> @ValueRange(type = ValueRangeType.FROM_SOLUTION_PROPERTY,
>> solutionProperty = "computerList")
>> public CloudComputer getComputer() {
>> if (computer == null) { return null; }
>> return computer;
>> }
>>
>> public void setComputer(CloudComputer computer) {
>> this.computer = computer;
>> }
>> public CloudProcess clone(){
>> CloudProcess clone = new CloudProcess();
>> clone.id = id;
>> clone.requiredCpuPower = requiredCpuPower;
>> clone.requiredMemory = requiredMemory;
>> clone.requiredNetworkBandwidth = requiredNetworkBandwidth;
>> clone.computer = computer;
>> return clone;
>> }
>> public int getRequiredMultiplicand() {
>> return requiredCpuPower * requiredMemory *
>> requiredNetworkBandwidth;
>> }
>> }
>> --------------
>>
>> this is what i'm doing to run the example:
>>
>> -------------
>> package com.swa.planner.domain;
>>
>> import java.io.ByteArrayInputStream;
>> import java.util.ArrayList;
>> import java.util.List;
>>
>> import org.drools.planner.config.SolverFactory;
>> import org.drools.planner.config.XmlSolverFactory;
>> import org.drools.planner.core.Solver;
>>
>> public class CloudTest {
>> public static void main(String[] args) {
>> String t = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
>> + "<solver>"
>> + " <solutionClass>com.swa.planner.domain.CloudBalance</solutionClass>"
>> + "
>> <planningEntityClass>com.swa.planner.domain.CloudProcess</planningEntityClass>"
>> + " <scoreDirectorFactory>"
>> + " <scoreDefinitionType>HARD_AND_SOFT</scoreDefinitionType>"
>> + "
>> <scoreDrl>/com/swa/planner/domain/rule/cloudBalancingScoreRules.drl</scoreDrl>"
>> + " </scoreDirectorFactory>"
>> + " <termination>"
>> + " <maximumSecondsSpend>120</maximumSecondsSpend>"
>> + " </termination>"
>> + " <constructionHeuristic>"
>> + "
>> <constructionHeuristicType>FIRST_FIT_DECREASING</constructionHeuristicType>"
>> + "
>> <constructionHeuristicPickEarlyType>FIRST_LAST_STEP_SCORE_EQUAL_OR_IMPROVING</constructionHeuristicPickEarlyType>"
>> + " </constructionHeuristic>"
>> + " <localSearch>"
>> + " <acceptor>"
>> + " <planningEntityTabuSize>7</planningEntityTabuSize>"
>> + " </acceptor>"
>> + " <forager>"
>> + " <minimalAcceptedSelection>1000</minimalAcceptedSelection>"
>> + " </forager>"
>> + " </localSearch>"
>> + "</solver>";
>>
>> byte b[] = t.getBytes();
>> ByteArrayInputStream bt = new ByteArrayInputStream(b);
>> SolverFactory solverFactory = new XmlSolverFactory().configure(bt);
>> Solver solver = solverFactory.buildSolver();
>>
>> List<CloudComputer> computerList = new ArrayList<CloudComputer>();
>> computerList.add(new CloudComputer(1L, "Computador 1", 3, 2, 2, 110));
>> computerList.add(new CloudComputer(2L, "Computador 2", 12, 8, 3, 400));
>> computerList.add(new CloudComputer(3L, "Computador 3", 6, 6, 4, 300));
>> computerList.add(new CloudComputer(4L, "Computador 4", 18, 12, 8,
>> 1000));
>> computerList.add(new CloudComputer(5L, "Computador 5", 8, 4, 6, 800));
>> computerList.add(new CloudComputer(6L, "Computador 6", 9, 7, 9, 1000));
>>
>> List<CloudProcess> processList = new ArrayList<CloudProcess>();
>> processList.add(new CloudProcess(11L, 2, 2, 2));
>> processList.add(new CloudProcess(12L, 4, 4, 2));
>> processList.add(new CloudProcess(13L, 1, 1, 3));
>> processList.add(new CloudProcess(14L, 7, 3, 5));
>> processList.add(new CloudProcess(15L, 5, 8, 3));
>> processList.add(new CloudProcess(16L, 9, 2, 2));
>> processList.add(new CloudProcess(17L, 6, 5, 6));
>>
>> CloudBalance cloudBalance = new CloudBalance();
>> cloudBalance.setId(0L);
>> cloudBalance.setComputerList(computerList);
>> cloudBalance.setProcessList(processList);
>>
>> // Solve the problem
>> solver.setPlanningProblem(cloudBalance);
>> solver.solve();
>> CloudBalance solvedCloudBalance = (CloudBalance)
>> solver.getBestSolution();
>>
>> // Display the result
>> System.out.println("\nSolved cloudBalance with 5 computers and 6
>> processes:\n"
>> + toDisplayString(solvedCloudBalance));
>> }
>>
>> public static String toDisplayString(CloudBalance cloudBalance) {
>> StringBuilder displayString = new StringBuilder();
>> for (CloudProcess process : cloudBalance.getProcessList()) {
>> CloudComputer computer = process.getComputer();
>> displayString.append(" ").append(process.getLabel())
>> .append(" -> ")
>> .append(computer == null ? null : computer.getLabel())
>> .append("\n");
>> }
>> return displayString.toString();
>> }
>> }
>>
>> -------------
>>
>>
>> 2013/1/28 Geoffrey De Smet <ge0ffrey.spam at gmail.com>
>>
>>> The value of a variable of an entity starts out as null during
>>> construction heuristics, even if it's not nullable.
>>>
>>> The usual trick is to add null safe getters:
>>>
>>> public class BedDesignation {
>>>
>>> // bed is planning variable
>>> ...
>>> public Departement getDepartment() {
>>> if (bed == null) { return null;}
>>> return bed.getRoom().getDepartement()
>>> }
>>> }
>>>
>>>
>>> Op 28-01-13 15:13, André Fróes schreef:
>>>
>>> I've implemented it to see how it would work, now I got another error:
>>>
>>> ---------------
>>>
>>> 12:10:41.357 [main] INFO o.d.p.core.solver.DefaultSolver - Solving
>>> started: time spend (302), score (null), new best score (null), random seed
>>> (0).
>>> Exception in thread "main" Exception executing consequence for rule
>>> "requiredCpuPowerTotal" in com.swa.planner.domain.rule:
>>> java.lang.NullPointerException
>>> at
>>> org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
>>> at
>>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
>>> at
>>> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
>>> at
>>> org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
>>> at
>>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
>>> at
>>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
>>> at
>>> org.drools.planner.core.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:177)
>>> at
>>> org.drools.planner.core.solver.scope.DefaultSolverScope.calculateScore(DefaultSolverScope.java:92)
>>> at
>>> org.drools.planner.core.phase.AbstractSolverPhaseScope.calculateScore(AbstractSolverPhaseScope.java:120)
>>> at
>>> org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.processMove(DefaultGreedyDecider.java:136)
>>> at
>>> org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.doMove(DefaultGreedyDecider.java:110)
>>> at
>>> org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.decideNextStep(DefaultGreedyDecider.java:82)
>>> at
>>> org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:65)
>>> at
>>> org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:190)
>>> at
>>> org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:155)
>>> at com.swa.planner.domain.CloudTest.main(CloudTest.java:65)
>>> Caused by: java.lang.NullPointerException
>>> at java.lang.String.<init>(Unknown Source)
>>> at org.mvel2.util.ErrorUtil.rewriteIfNeeded(ErrorUtil.java:12)
>>> at
>>> org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:302)
>>> at
>>> org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)
>>> at org.mvel2.MVEL.compileExpression(MVEL.java:810)
>>> at
>>> org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)
>>> at
>>> org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)
>>> at
>>> org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)
>>> at
>>> org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)
>>> at
>>> org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157)
>>> at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)
>>> at
>>> org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
>>> at
>>> org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
>>> at
>>> org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
>>> at
>>> org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
>>> at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
>>> at
>>> org.drools.common.SimpleBeliefSystem.insert(SimpleBeliefSystem.java:38)
>>> at
>>> org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:204)
>>> at
>>> org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:176)
>>> at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:231)
>>> at
>>> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
>>> at
>>> org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:245)
>>> at
>>> org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:210)
>>> at
>>> org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:205)
>>> at
>>> com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bd.defaultConsequence(Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bd.java:14)
>>> at
>>> com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bdDefaultConsequenceInvokerGenerated.evaluate(Unknown
>>> Source)
>>> at
>>> com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bdDefaultConsequenceInvoker.evaluate(Unknown
>>> Source)
>>> at
>>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
>>> ... 14 more
>>>
>>> -----------------
>>>
>>> this one i have no clue
>>>
>>>
>>> 2013/1/28 André Fróes <arfmoraes at gmail.com>
>>>
>>>> Hello there, i'm getting this error:
>>>>
>>>> -------------------
>>>> 11:26:50.394 [main] INFO o.d.p.core.solver.DefaultSolver - Solving
>>>> started: time spend (187), score (null), new best score (null), random seed
>>>> (0).
>>>> Exception in thread "main" java.lang.IllegalStateException: The
>>>> selectionOrder (DECREASING_DIFFICULTY) can not be used on a PlanningEntity
>>>> (com.swa.planner.domain.CloudProcess) that has no support for difficulty
>>>> sorting. Check the @PlanningEntity annotation.
>>>> at
>>>> org.drools.planner.core.heuristic.selector.entity.PlanningEntitySelector.validate(PlanningEntitySelector.java:53)
>>>> at
>>>> org.drools.planner.core.heuristic.selector.entity.PlanningEntitySelector.phaseStarted(PlanningEntitySelector.java:45)
>>>> at
>>>> org.drools.planner.core.constructionheuristic.greedyFit.selector.GreedyPlanningEntitySelector.phaseStarted(GreedyPlanningEntitySelector.java:41)
>>>> at
>>>> org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.phaseStarted(DefaultGreedyFitSolverPhase.java:111)
>>>> at
>>>> org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:57)
>>>> at
>>>> org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:190)
>>>> at
>>>> org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:155)
>>>> at com.swa.planner.domain.CloudTest.main(CloudTest.java:51)
>>>> -------------------------
>>>>
>>>> I know why it is happening though (at least i think so), but will I
>>>> have to implement the comparator to every planner I do or is there any
>>>> other way to make it work?
>>>>
>>>> I'm reproducing the example from the guide, when it passes the drools
>>>> rules it gives that message. I didn't implement
>>>> CloudComputerStrengthComparator neither CloudProcessDifficultyComparator,
>>>> will I have to implement those so this example works?
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> rules-users mailing listrules-users at lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>>
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>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>
>>
>> _______________________________________________
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>>
>>
>>
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>>
>
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