<div dir="ltr">5.5.0.Final both</div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/1/28 Geoffrey De Smet <span dir="ltr"><<a href="mailto:ge0ffrey.spam@gmail.com" target="_blank">ge0ffrey.spam@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Which version of planner (drools-planner-core) and drools
(drools-core, drools-compiler)?<br>
<div>Op 28-01-13 16:40, André Fróes schreef:<br>
</div><div><div class="h5">
<blockquote type="cite">
<div dir="ltr">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.</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">this is the full drl file:
<div><br>
</div>
<div>------------</div>
<div><br>
</div>
<div>
<div>package com.swa.planner.domain.rule;</div>
<div><br>
</div>
<div>import
org.drools.planner.core.score.buildin.hardandsoft.HardAndSoftScoreHolder;</div>
<div>import
org.drools.planner.core.score.constraint.IntConstraintOccurrence;</div>
<div>import
org.drools.planner.core.score.constraint.ConstraintType;</div>
<div><br>
</div>
<div>import com.swa.planner.domain.CloudBalance;</div>
<div>import com.swa.planner.domain.CloudComputer;</div>
<div>import com.swa.planner.domain.CloudProcess;</div>
<div><br>
</div>
<div>global HardAndSoftScoreHolder scoreHolder;</div>
<div><br>
</div>
<div>rule "requiredCpuPowerTotal"</div>
<div><span style="white-space:pre-wrap"> </span>when</div>
<div><span style="white-space:pre-wrap"> </span>$computer
: CloudComputer($cpuPower : cpuPower)</div>
<div><span style="white-space:pre-wrap"> </span>$requiredCpuPowerTotal
: Number(intValue > $cpuPower) from accumulate(</div>
<div><span style="white-space:pre-wrap"> </span>CloudProcess
(</div>
<div><span style="white-space:pre-wrap"> </span>computer
== $computer, </div>
<div><span style="white-space:pre-wrap"> </span>$requiredCpuPower
: requiredCpuPower),</div>
<div><span style="white-space:pre-wrap"> </span>sum($requiredCpuPower)</div>
<div><span style="white-space:pre-wrap"> </span>)</div>
<div><span style="white-space:pre-wrap"> </span>then</div>
<div><span style="white-space:pre-wrap"> </span>insertLogical(new
IntConstraintOccurrence("requiredCpuPowerTotal",
ConstraintType.NEGATIVE_HARD,</div>
<div><span style="white-space:pre-wrap"> </span>$requiredCpuPowerTotal.intValue()
- $cpuPower,</div>
<div><span style="white-space:pre-wrap"> </span>$computer));</div>
<div>end</div>
<div><br>
</div>
<div>rule "requiredMemoryTotal"</div>
<div><span style="white-space:pre-wrap"> </span>when</div>
<div><span style="white-space:pre-wrap"> </span>$computer
: CloudComputer($memory : memory)</div>
<div><span style="white-space:pre-wrap"> </span>$requiredMemoryTotal
: Number(intValue > $memory) from accumulate(</div>
<div><span style="white-space:pre-wrap"> </span>CloudProcess
( </div>
<div><span style="white-space:pre-wrap"> </span>computer
== $computer, </div>
<div><span style="white-space:pre-wrap"> </span>$requiredMemory
: requiredMemory),</div>
<div><span style="white-space:pre-wrap"> </span>sum($requiredMemory)</div>
<div><span style="white-space:pre-wrap"> </span>)</div>
<div><span style="white-space:pre-wrap"> </span>then</div>
<div><span style="white-space:pre-wrap"> </span>insertLogical(new
IntConstraintOccurrence("requiredMemoryTotal",
ConstraintType.NEGATIVE_HARD,</div>
<div><span style="white-space:pre-wrap"> </span>$requiredMemoryTotal.intValue()
- $memory, </div>
<div><span style="white-space:pre-wrap"> </span>$computer));</div>
<div>end</div>
<div><br>
</div>
<div>rule "requiredNetworkBandwidth"</div>
<div><span style="white-space:pre-wrap"> </span>when</div>
<div><span style="white-space:pre-wrap"> </span>$computer
: CloudComputer($networkBandwidth : networkBandwidth)</div>
<div><span style="white-space:pre-wrap"> </span>$requiredNetworkBandwidthTotal
: Number(intValue > $networkBandwidth) from
accumulate(</div>
<div><span style="white-space:pre-wrap"> </span>CloudProcess
(</div>
<div><span style="white-space:pre-wrap"> </span>computer
== $computer,</div>
<div><span style="white-space:pre-wrap"> </span>$requiredNetworkBandwidth
: requiredNetworkBandwidth)</div>
<div><span style="white-space:pre-wrap"> </span>sum($requiredNetworkBandwidth)</div>
<div><span style="white-space:pre-wrap"> </span>)</div>
<div><span style="white-space:pre-wrap"> </span>then</div>
<div>
<span style="white-space:pre-wrap"> </span>insertLogical(new
IntConstraintOccurrence("requiredNetworkBandwidth",
ConstraintType.NEGATIVE_HARD, </div>
<div><span style="white-space:pre-wrap"> </span>$requiredNetworkBandwidthTotal.intValue()
- $networkBandwidth, </div>
<div><span style="white-space:pre-wrap"> </span>$computer));</div>
<div>end</div>
<div><br>
</div>
<div>rule "hardConstraintBroken"</div>
<div><span style="white-space:pre-wrap"> </span>salience
-1</div>
<div>
<span style="white-space:pre-wrap"> </span>when</div>
<div><span style="white-space:pre-wrap"> </span>$hardTotal
: Number() from accumulate(</div>
<div><span style="white-space:pre-wrap"> </span>IntConstraintOccurrence(constraintType
== ConstraintType.NEGATIVE_HARD, $weight : weight)</div>
<div><span style="white-space:pre-wrap"> </span>sum($weight)</div>
<div><span style="white-space:pre-wrap"> </span>)</div>
<div><span style="white-space:pre-wrap"> </span>then</div>
<div><span style="white-space:pre-wrap"> </span>scoreHolder.setHardConstraintsBroken($hardTotal.intValue());</div>
<div>end</div>
<div><br>
</div>
<div><br>
</div>
<div>// Soft constraint</div>
<div><br>
</div>
<div>rule "computerCost"</div>
<div><span style="white-space:pre-wrap"> </span>when</div>
<div><span style="white-space:pre-wrap"> </span>$computer
: CloudComputer($cost : cost)</div>
<div><span style="white-space:pre-wrap"> </span>exists
CloudProcess(computer == $computer)</div>
<div><span style="white-space:pre-wrap"> </span>then</div>
<div><span style="white-space:pre-wrap"> </span>insertLogical(new
IntConstraintOccurrence("computerCost",
ConstraintType.NEGATIVE_SOFT,</div>
<div><span style="white-space:pre-wrap"> </span>$cost,</div>
<div><span style="white-space:pre-wrap"> </span>$computer));</div>
<div>end</div>
<div><br>
</div>
<div>rule "softConstraintBroken"</div>
<div><span style="white-space:pre-wrap"> </span>salience
-1</div>
<div><span style="white-space:pre-wrap"> </span>when</div>
<div><span style="white-space:pre-wrap"> </span>$softTotal
: Number() from accumulate(</div>
<div><span style="white-space:pre-wrap"> </span>IntConstraintOccurrence(ConstraintType
== ConstraintType.NEGATIVE_SOFT, $weight : weight)</div>
<div><span style="white-space:pre-wrap"> </span>sum($weight)</div>
<div><span style="white-space:pre-wrap"> </span>)</div>
<div><span style="white-space:pre-wrap"> </span>then</div>
<div><span style="white-space:pre-wrap"> </span>scoreHolder.setHardConstraintsBroken($softTotal.intValue());</div>
<div>end</div>
</div>
</div>
<div>
<div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">2013/1/28 Geoffrey De Smet <span dir="ltr"><<a href="mailto:ge0ffrey.spam@gmail.com" target="_blank">ge0ffrey.spam@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.defaultConsequence(Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.java:14)
<span style="white-space:pre-wrap"><br>
What's in the then side of
Rule_requiredCpuPowerTotal ?<br>
<br>
</span>
<div>Op 28-01-13 16:00, André Fróes schreef:<br>
</div>
<div>
<div>
<blockquote type="cite">
<div dir="ltr">Even adding that, the error
still
<div><br>
</div>
<div>--------------</div>
<div>
<div>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).</div>
<div>Exception in thread "main"
Exception executing consequence for
rule "requiredCpuPowerTotal" in
com.swa.planner.domain.rule:
java.lang.NullPointerException</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.planner.core.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:177)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.planner.core.solver.scope.DefaultSolverScope.calculateScore(DefaultSolverScope.java:92)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.planner.core.phase.AbstractSolverPhaseScope.calculateScore(AbstractSolverPhaseScope.java:120)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.processMove(DefaultGreedyDecider.java:136)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.doMove(DefaultGreedyDecider.java:110)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.decideNextStep(DefaultGreedyDecider.java:82)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:65)</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:67)</div>
<div>Caused by:
java.lang.NullPointerException</div>
<div><span style="white-space:pre-wrap"> </span>at
java.lang.String.<init>(Unknown
Source)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.mvel2.util.ErrorUtil.rewriteIfNeeded(ErrorUtil.java:12)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:302)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.mvel2.MVEL.compileExpression(MVEL.java:810)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.SimpleBeliefSystem.insert(SimpleBeliefSystem.java:38)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:204)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:176)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:231)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:245)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:210)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:205)</div>
<div><span style="white-space:pre-wrap"> </span>at
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.defaultConsequence(Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.java:14)</div>
<div><span style="white-space:pre-wrap"> </span>at
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987DefaultConsequenceInvokerGenerated.evaluate(Unknown
Source)</div>
<div><span style="white-space:pre-wrap"> </span>at
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987DefaultConsequenceInvoker.evaluate(Unknown
Source)</div>
<div><span style="white-space:pre-wrap"> </span>at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)</div>
<div><span style="white-space:pre-wrap"> </span>...
14 more</div>
</div>
<div><br>
</div>
<div>--------------</div>
<div><br>
</div>
<div>I added to cloudprocess computer
variable:</div>
<div>--------------</div>
<div>
<div>package com.swa.planner.domain;</div>
<div><br>
</div>
<div>import
org.drools.planner.api.domain.entity.PlanningEntity;</div>
<div>import
org.drools.planner.api.domain.variable.PlanningVariable;</div>
<div>import
org.drools.planner.api.domain.variable.ValueRange;</div>
<div>import
org.drools.planner.api.domain.variable.ValueRangeType;</div>
<div>import
org.drools.planner.examples.common.domain.AbstractPersistable;</div>
<div><br>
</div>
<div>@PlanningEntity(difficultyComparatorClass
=
CloudProcessDifficultyComparator.class)</div>
<div>public class CloudProcess extends
AbstractPersistable{</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>private
int requiredCpuPower;</div>
<div><span style="white-space:pre-wrap"> </span>private
int requiredMemory;</div>
<div><span style="white-space:pre-wrap"> </span>private
int requiredNetworkBandwidth;</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>private
CloudComputer computer;</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
CloudProcess(long id, int
requiredCpuPower, int
requiredMemory,</div>
<div><span style="white-space:pre-wrap"> </span>int
requiredNetworkBandwidth) {</div>
<div><span style="white-space:pre-wrap"> </span>super();</div>
<div><span style="white-space:pre-wrap"> </span>setId(id);</div>
<div><span style="white-space:pre-wrap"> </span>this.requiredCpuPower
= requiredCpuPower;</div>
<div><span style="white-space:pre-wrap"> </span>this.requiredMemory
= requiredMemory;</div>
<div><span style="white-space:pre-wrap"> </span>this.requiredNetworkBandwidth
= requiredNetworkBandwidth;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><span style="white-space:pre-wrap"> </span></div>
<div><span style="white-space:pre-wrap"> </span>public
CloudProcess() {<span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
int getRequiredCpuPower() {</div>
<div><span style="white-space:pre-wrap"> </span>return
requiredCpuPower;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
void setRequiredCpuPower(int
requiredCpuPower) {</div>
<div><span style="white-space:pre-wrap"> </span>this.requiredCpuPower
= requiredCpuPower;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
int getRequiredMemory() {</div>
<div><span style="white-space:pre-wrap"> </span>return
requiredMemory;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
void setRequiredMemory(int
requiredMemory) {</div>
<div><span style="white-space:pre-wrap"> </span>this.requiredMemory
= requiredMemory;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
int getRequiredNetworkBandwidth() {</div>
<div><span style="white-space:pre-wrap"> </span>return
requiredNetworkBandwidth;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
void setRequiredNetworkBandwidth(int
requiredNetworkBandwidth) {</div>
<div><span style="white-space:pre-wrap"> </span>this.requiredNetworkBandwidth
= requiredNetworkBandwidth;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
String getLabel() {</div>
<div> return "Process " + id;</div>
<div> }</div>
<div><span style="white-space:pre-wrap"> </span></div>
<div><span style="white-space:pre-wrap"> </span>@PlanningVariable(strengthComparatorClass
=
CloudComputerStrengthComparator.class)</div>
<div><span style="white-space:pre-wrap"> </span>@ValueRange(type
=
ValueRangeType.FROM_SOLUTION_PROPERTY,
solutionProperty = "computerList")</div>
<div><span style="white-space:pre-wrap"> </span>public
CloudComputer getComputer() {</div>
<div><span style="white-space:pre-wrap"> </span>if
(computer == null) { return null; }</div>
<div><span style="white-space:pre-wrap"> </span>return
computer;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
void setComputer(CloudComputer
computer) {</div>
<div><span style="white-space:pre-wrap"> </span>this.computer
= computer;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><span style="white-space:pre-wrap"> </span></div>
<div><span style="white-space:pre-wrap"> </span>public
CloudProcess clone(){</div>
<div><span style="white-space:pre-wrap"> </span>CloudProcess
clone = new CloudProcess();</div>
<div><span style="white-space:pre-wrap"> </span><a href="http://clone.id" target="_blank">clone.id</a> = id;</div>
<div><span style="white-space:pre-wrap"> </span>clone.requiredCpuPower
= requiredCpuPower;</div>
<div><span style="white-space:pre-wrap"> </span>clone.requiredMemory
= requiredMemory;</div>
<div><span style="white-space:pre-wrap"> </span>clone.requiredNetworkBandwidth
= requiredNetworkBandwidth;</div>
<div><span style="white-space:pre-wrap"> </span>clone.computer
= computer;</div>
<div><span style="white-space:pre-wrap"> </span>return
clone;</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><span style="white-space:pre-wrap"> </span></div>
<div><span style="white-space:pre-wrap"> </span>public
int getRequiredMultiplicand() {</div>
<div> return requiredCpuPower *
requiredMemory *
requiredNetworkBandwidth;</div>
<div> }</div>
<div>}</div>
<div>--------------<br>
</div>
<div><br>
</div>
<div>this is what i'm doing to run the
example:</div>
<div><br>
</div>
<div>-------------</div>
<div>
<div>package com.swa.planner.domain;</div>
<div><br>
</div>
<div>import
java.io.ByteArrayInputStream;</div>
<div>import java.util.ArrayList;</div>
<div>import java.util.List;</div>
<div><br>
</div>
<div>import
org.drools.planner.config.SolverFactory;</div>
<div>import
org.drools.planner.config.XmlSolverFactory;</div>
<div>import
org.drools.planner.core.Solver;</div>
<div><br>
</div>
<div>public class CloudTest {</div>
<div><span style="white-space:pre-wrap"> </span>public
static void main(String[] args) {</div>
<div><span style="white-space:pre-wrap"> </span>String
t = "<?xml version=\"1.0\"
encoding=\"UTF-8\"?>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"<solver>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<solutionClass>com.swa.planner.domain.CloudBalance</solutionClass>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<planningEntityClass>com.swa.planner.domain.CloudProcess</planningEntityClass>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" <scoreDirectorFactory>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<scoreDefinitionType>HARD_AND_SOFT</scoreDefinitionType>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<scoreDrl>/com/swa/planner/domain/rule/cloudBalancingScoreRules.drl</scoreDrl>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" </scoreDirectorFactory>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" <termination>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<maximumSecondsSpend>120</maximumSecondsSpend>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" </termination>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" <constructionHeuristic>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<constructionHeuristicType>FIRST_FIT_DECREASING</constructionHeuristicType>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<constructionHeuristicPickEarlyType>FIRST_LAST_STEP_SCORE_EQUAL_OR_IMPROVING</constructionHeuristicPickEarlyType>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" </constructionHeuristic>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" <localSearch>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" <acceptor>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<planningEntityTabuSize>7</planningEntityTabuSize>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" </acceptor>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" <forager>"</div>
<div><span style="white-space:pre-wrap"> </span>+
"
<minimalAcceptedSelection>1000</minimalAcceptedSelection>"</div>
<div><span style="white-space:pre-wrap"> </span>+
" </forager>" </div>
<div><span style="white-space:pre-wrap"> </span>+
" </localSearch>" </div>
<div><span style="white-space:pre-wrap"> </span>+
"</solver>";</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>byte
b[] = t.getBytes();</div>
<div><span style="white-space:pre-wrap"> </span>ByteArrayInputStream
bt = new ByteArrayInputStream(b);</div>
<div><span style="white-space:pre-wrap"> </span>SolverFactory
solverFactory = new
XmlSolverFactory().configure(bt);</div>
<div><span style="white-space:pre-wrap"> </span>Solver
solver =
solverFactory.buildSolver();</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>List<CloudComputer>
computerList = new
ArrayList<CloudComputer>();</div>
<div><span style="white-space:pre-wrap"> </span>computerList.add(new
CloudComputer(1L, "Computador 1",
3, 2, 2, 110));</div>
<div><span style="white-space:pre-wrap"> </span>computerList.add(new
CloudComputer(2L, "Computador 2",
12, 8, 3, 400));</div>
<div><span style="white-space:pre-wrap"> </span>computerList.add(new
CloudComputer(3L, "Computador 3",
6, 6, 4, 300));</div>
<div><span style="white-space:pre-wrap"> </span>computerList.add(new
CloudComputer(4L, "Computador 4",
18, 12, 8, 1000));</div>
<div><span style="white-space:pre-wrap"> </span>computerList.add(new
CloudComputer(5L, "Computador 5",
8, 4, 6, 800));</div>
<div><span style="white-space:pre-wrap"> </span>computerList.add(new
CloudComputer(6L, "Computador 6",
9, 7, 9, 1000));</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>List<CloudProcess>
processList = new
ArrayList<CloudProcess>();</div>
<div><span style="white-space:pre-wrap"> </span>processList.add(new
CloudProcess(11L, 2, 2, 2));</div>
<div><span style="white-space:pre-wrap"> </span>processList.add(new
CloudProcess(12L, 4, 4, 2));</div>
<div><span style="white-space:pre-wrap"> </span>processList.add(new
CloudProcess(13L, 1, 1, 3));</div>
<div><span style="white-space:pre-wrap"> </span>processList.add(new
CloudProcess(14L, 7, 3, 5));</div>
<div><span style="white-space:pre-wrap"> </span>processList.add(new
CloudProcess(15L, 5, 8, 3));</div>
<div><span style="white-space:pre-wrap"> </span>processList.add(new
CloudProcess(16L, 9, 2, 2));</div>
<div><span style="white-space:pre-wrap"> </span>processList.add(new
CloudProcess(17L, 6, 5, 6));</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>CloudBalance
cloudBalance = new CloudBalance();</div>
<div><span style="white-space:pre-wrap"> </span>cloudBalance.setId(0L);</div>
<div><span style="white-space:pre-wrap"> </span>cloudBalance.setComputerList(computerList);</div>
<div><span style="white-space:pre-wrap"> </span>cloudBalance.setProcessList(processList);</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>//
Solve the problem</div>
<div><span style="white-space:pre-wrap"> </span>solver.setPlanningProblem(cloudBalance);</div>
<div><span style="white-space:pre-wrap"> </span>solver.solve();</div>
<div><span style="white-space:pre-wrap"> </span>CloudBalance
solvedCloudBalance =
(CloudBalance)
solver.getBestSolution();</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>//
Display the result</div>
<div><span style="white-space:pre-wrap"> </span>System.out.println("\nSolved
cloudBalance with 5 computers and
6 processes:\n"</div>
<div><span style="white-space:pre-wrap"> </span>+
toDisplayString(solvedCloudBalance));</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>public
static String
toDisplayString(CloudBalance
cloudBalance) {</div>
<div><span style="white-space:pre-wrap"> </span>StringBuilder
displayString = new
StringBuilder();</div>
<div><span style="white-space:pre-wrap"> </span>for
(CloudProcess process :
cloudBalance.getProcessList()) {</div>
<div><span style="white-space:pre-wrap"> </span>CloudComputer
computer = process.getComputer();</div>
<div><span style="white-space:pre-wrap"> </span>displayString.append("
").append(process.getLabel())</div>
<div><span style="white-space:pre-wrap"> </span>.append("
-> ")</div>
<div><span style="white-space:pre-wrap"> </span>.append(computer
== null ? null :
computer.getLabel())</div>
<div><span style="white-space:pre-wrap"> </span>.append("\n");</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><span style="white-space:pre-wrap"> </span>return
displayString.toString();</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div>}</div>
<div><br>
</div>
</div>
<div>-------------</div>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">2013/1/28
Geoffrey De Smet <span dir="ltr"><<a href="mailto:ge0ffrey.spam@gmail.com" target="_blank">ge0ffrey.spam@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> The value of a
variable of an entity starts out
as null during construction
heuristics, even if it's not
nullable.<br>
<br>
The usual trick is to add null
safe getters:<br>
<br>
public class BedDesignation {<br>
<br>
// bed is planning variable<br>
...<br>
public Departement
getDepartment() {<br>
if (bed == null) { return
null;}<br>
return
bed.getRoom().getDepartement()<br>
}<br>
}<br>
<br>
<br>
<div>Op 28-01-13 15:13, André
Fróes schreef:<br>
</div>
<blockquote type="cite">
<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 style="white-space:pre-wrap">
</span>at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.planner.core.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:177)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.planner.core.solver.scope.DefaultSolverScope.calculateScore(DefaultSolverScope.java:92)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.planner.core.phase.AbstractSolverPhaseScope.calculateScore(AbstractSolverPhaseScope.java:120)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.processMove(DefaultGreedyDecider.java:136)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.doMove(DefaultGreedyDecider.java:110)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.decideNextStep(DefaultGreedyDecider.java:82)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:65)</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:65)</div>
<div>Caused by:
java.lang.NullPointerException</div>
<div><span style="white-space:pre-wrap">
</span>at
java.lang.String.<init>(Unknown
Source)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.mvel2.util.ErrorUtil.rewriteIfNeeded(ErrorUtil.java:12)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:302)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.mvel2.MVEL.compileExpression(MVEL.java:810)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.SimpleBeliefSystem.insert(SimpleBeliefSystem.java:38)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:204)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:176)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:231)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:245)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:210)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:205)</div>
<div><span style="white-space:pre-wrap">
</span>at
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bd.defaultConsequence(Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bd.java:14)</div>
<div><span style="white-space:pre-wrap">
</span>at
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bdDefaultConsequenceInvokerGenerated.evaluate(Unknown
Source)</div>
<div><span style="white-space:pre-wrap">
</span>at
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bdDefaultConsequenceInvoker.evaluate(Unknown
Source)</div>
<div><span style="white-space:pre-wrap">
</span>at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)</div>
<div><span style="white-space:pre-wrap">
</span>... 14 more</div>
</div>
<div><br>
</div>
<div>-----------------</div>
<div><br>
</div>
<div>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>
<br>
<fieldset></fieldset>
<br>
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</pre>
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</div>
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</div>
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