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Drools Planner optimizes automated planning by combining metaheuristic search algorithms with rule engine powered score calculation. This is the drools-planner-examples module which contains examples on how to use Drools Planner.

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<?xml version="1.0" encoding="UTF-8"?>
<plannerBenchmark>
  <benchmarkDirectory>local/data/nurserostering/long</benchmarkDirectory>
  <parallelBenchmarkCount>AUTO</parallelBenchmarkCount>
  <warmUpSecondsSpend>30</warmUpSecondsSpend>

  <inheritedSolverBenchmark>
    <problemBenchmarks>
      <xstreamAnnotatedClass>org.drools.planner.examples.nurserostering.domain.NurseRoster</xstreamAnnotatedClass>
      <inputSolutionFile>data/nurserostering/unsolved/long01.xml</inputSolutionFile>
      <inputSolutionFile>data/nurserostering/unsolved/long02.xml</inputSolutionFile>
      <!--<inputSolutionFile>data/nurserostering/unsolved/long03.xml</inputSolutionFile>-->
      <!--<inputSolutionFile>data/nurserostering/unsolved/long04.xml</inputSolutionFile>-->
      <!--<inputSolutionFile>data/nurserostering/unsolved/long05.xml</inputSolutionFile>-->
      <inputSolutionFile>data/nurserostering/unsolved/long_hint01.xml</inputSolutionFile>
      <inputSolutionFile>data/nurserostering/unsolved/long_hint02.xml</inputSolutionFile>
      <!--<inputSolutionFile>data/nurserostering/unsolved/long_hint03.xml</inputSolutionFile>-->
      <!--<inputSolutionFile>data/nurserostering/unsolved/long_late01.xml</inputSolutionFile>-->
      <!--<inputSolutionFile>data/nurserostering/unsolved/long_late02.xml</inputSolutionFile>-->
      <!--<inputSolutionFile>data/nurserostering/unsolved/long_late03.xml</inputSolutionFile>-->
      <!--<inputSolutionFile>data/nurserostering/unsolved/long_late04.xml</inputSolutionFile>-->
      <!--<inputSolutionFile>data/nurserostering/unsolved/long_late05.xml</inputSolutionFile>-->
      <problemStatisticType>BEST_SOLUTION_CHANGED</problemStatisticType>
    </problemBenchmarks>

    <solver>
      <solutionClass>org.drools.planner.examples.nurserostering.domain.NurseRoster</solutionClass>
      <planningEntityClass>org.drools.planner.examples.nurserostering.domain.ShiftAssignment</planningEntityClass>
      <scoreDirectorFactory>
        <scoreDefinitionType>HARD_AND_SOFT</scoreDefinitionType>
        <scoreDrl>/org/drools/planner/examples/nurserostering/solver/nurseRosteringScoreRules.drl</scoreDrl>
      </scoreDirectorFactory>
      <termination>
        <!--
          Official benchmark maximumSecondsSpend allowed on:
          - ge0ffrey's main pc: sprint 11, medium 700, long 42000
        -->
        <maximumSecondsSpend>42000</maximumSecondsSpend>
      </termination>
      <constructionHeuristic>
        <constructionHeuristicType>BEST_FIT</constructionHeuristicType>
      </constructionHeuristic>
    </solver>
  </inheritedSolverBenchmark>

  <solverBenchmark>
    <name>absolute300SeqLength2and3PillarPart</name>
    <solver>
      <localSearch>
        <unionMoveSelector>
          <moveListFactory>
            <cacheType>PHASE</cacheType>
            <moveListFactoryClass>org.drools.planner.examples.nurserostering.solver.move.factory.EmployeeChangeMoveFactory</moveListFactoryClass>
          </moveListFactory>
          <moveListFactory>
            <cacheType>PHASE</cacheType>
            <moveListFactoryClass>org.drools.planner.examples.nurserostering.solver.move.factory.ShiftAssignmentSwapMoveFactory</moveListFactoryClass>
          </moveListFactory>
          <moveListFactory>
            <cacheType>STEP</cacheType>
            <moveListFactoryClass>org.drools.planner.examples.nurserostering.solver.move.factory.ShiftAssignmentPillarPartSwapMoveFactory</moveListFactoryClass>
          </moveListFactory>
          <moveListFactory>
          <cacheType>STEP</cacheType>
          <moveListFactoryClass>org.drools.planner.examples.nurserostering.solver.move.factory.ShiftAssignmentSequenceSwitchLength2MoveFactory</moveListFactoryClass>
          </moveListFactory>
          <moveListFactory>
          <cacheType>STEP</cacheType>
          <moveListFactoryClass>org.drools.planner.examples.nurserostering.solver.move.factory.ShiftAssignmentSequenceSwitchLength3MoveFactory</moveListFactoryClass>
          </moveListFactory>
        </unionMoveSelector>
        <acceptor>
          <solutionTabuSize>1000</solutionTabuSize>
          <planningEntityTabuSize>11</planningEntityTabuSize>
        </acceptor>
        <forager>
          <minimalAcceptedSelection>1100</minimalAcceptedSelection>
        </forager>
      </localSearch>
    </solver>
  </solverBenchmark>
</plannerBenchmark>