<div dir="ltr">I've implemented it to see how it would work, now I got another error:<div><br></div><div>---------------</div><div><br></div><div><div>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).</div>
<div>Exception in thread "main" Exception executing consequence for rule "requiredCpuPowerTotal" in com.swa.planner.domain.rule: java.lang.NullPointerException</div><div><span class="" style="white-space:pre"> </span>at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)</div><div><span class="" style="white-space:pre"> </span>at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)</div><div><span class="" style="white-space:pre"> </span>at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)</div><div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:177)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.solver.scope.DefaultSolverScope.calculateScore(DefaultSolverScope.java:92)</div><div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.phase.AbstractSolverPhaseScope.calculateScore(AbstractSolverPhaseScope.java:120)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.processMove(DefaultGreedyDecider.java:136)</div><div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.doMove(DefaultGreedyDecider.java:110)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.decideNextStep(DefaultGreedyDecider.java:82)</div><div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:65)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:190)</div><div><span class="" style="white-space:pre"> </span>at org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:155)</div>
<div><span class="" style="white-space:pre"> </span>at com.swa.planner.domain.CloudTest.main(CloudTest.java:65)</div><div>Caused by: java.lang.NullPointerException</div><div><span class="" style="white-space:pre"> </span>at java.lang.String.<init>(Unknown Source)</div>
<div><span class="" style="white-space:pre"> </span>at org.mvel2.util.ErrorUtil.rewriteIfNeeded(ErrorUtil.java:12)</div><div><span class="" style="white-space:pre"> </span>at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:302)</div>
<div><span class="" style="white-space:pre"> </span>at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)</div><div><span class="" style="white-space:pre"> </span>at org.mvel2.MVEL.compileExpression(MVEL.java:810)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)</div><div><span class="" style="white-space:pre"> </span>at org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)</div><div><span class="" style="white-space:pre"> </span>at org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157)</div><div><span class="" style="white-space:pre"> </span>at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)</div><div><span class="" style="white-space:pre"> </span>at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)</div><div><span class="" style="white-space:pre"> </span>at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)</div><div><span class="" style="white-space:pre"> </span>at org.drools.common.SimpleBeliefSystem.insert(SimpleBeliefSystem.java:38)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:204)</div><div><span class="" style="white-space:pre"> </span>at org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:176)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:231)</div><div><span class="" style="white-space:pre"> </span>at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:245)</div><div><span class="" style="white-space:pre"> </span>at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:210)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:205)</div><div><span class="" style="white-space:pre"> </span>at com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bd.defaultConsequence(Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bd.java:14)</div>
<div><span class="" style="white-space:pre"> </span>at com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bdDefaultConsequenceInvokerGenerated.evaluate(Unknown Source)</div><div><span class="" style="white-space:pre"> </span>at com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bdDefaultConsequenceInvoker.evaluate(Unknown Source)</div>
<div><span class="" style="white-space:pre"> </span>at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)</div><div><span class="" style="white-space:pre"> </span>... 14 more</div></div><div><br></div>
<div>-----------------</div><div><br></div><div style>this one i have no clue </div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/1/28 André Fróes <span dir="ltr"><<a href="mailto:arfmoraes@gmail.com" target="_blank">arfmoraes@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hello there, i'm getting this error:</div><div><br></div><div>-------------------</div><div><div>
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).</div>
<div>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.</div>
<div><span style="white-space:pre-wrap"> </span>at org.drools.planner.core.heuristic.selector.entity.PlanningEntitySelector.validate(PlanningEntitySelector.java:53)</div><div><span style="white-space:pre-wrap"> </span>at org.drools.planner.core.heuristic.selector.entity.PlanningEntitySelector.phaseStarted(PlanningEntitySelector.java:45)</div>
<div><span style="white-space:pre-wrap"> </span>at org.drools.planner.core.constructionheuristic.greedyFit.selector.GreedyPlanningEntitySelector.phaseStarted(GreedyPlanningEntitySelector.java:41)</div><div><span style="white-space:pre-wrap"> </span>at org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.phaseStarted(DefaultGreedyFitSolverPhase.java:111)</div>
<div><span style="white-space:pre-wrap"> </span>at org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:57)</div><div><span style="white-space:pre-wrap"> </span>at org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:190)</div>
<div><span style="white-space:pre-wrap"> </span>at org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:155)</div><div><span style="white-space:pre-wrap"> </span>at com.swa.planner.domain.CloudTest.main(CloudTest.java:51)</div>
<div>-------------------------</div><div><br></div><div>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?</div>
<div><br></div><div>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?</div>
</div></div>
</blockquote></div><br></div>