Examples of jsprit.core.problem.solution.SolutionCostCalculator

jsprit.core.problem.solution.SolutionCostCalculator
Interface for all solutionCostCalculators which should be the objective-functions of the problem.
It evaluates VehicleRoutingProblemSolution and returns its costs. @author schroeder

    super();
    this.stateManager = stateManager;
  }


  public SolutionCostCalculator createCalculator(){
    return new SolutionCostCalculator() {


      @Override
      public double getCosts(VehicleRoutingProblemSolution solution) {
        double c = 0.0;
                for(VehicleRoute r : solution.getRoutes()){

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            activityPolicy = ActivityTimeTracker.ActivityPolicy.AS_SOON_AS_ARRIVED;
        }
        stateManager.addStateUpdater(new UpdateActivityTimes(vrp.getTransportCosts(),activityPolicy));
        stateManager.addStateUpdater(new UpdateVariableCosts(vrp.getActivityCosts(), vrp.getTransportCosts(), stateManager, activityPolicy));


    SolutionCostCalculator costCalculator;
    if(solutionCostCalculator==null) costCalculator = getDefaultCostCalculator(stateManager);
    else costCalculator = solutionCostCalculator;
    
    //construct initial solution creator 
    AlgorithmStartsListener createInitialSolution = createInitialSolution(config,vrp,vehicleFleetManager,stateManager,algorithmListeners,definedClasses,executorService,nuOfThreads,costCalculator, constraintManager, addDefaultCostCalculators);

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     */
    /*
     * but before define how a generated solution is evaluated
     * here: the VariablePlusFixed.... comes out of the box and it does what its name suggests
     */
    SolutionCostCalculator solutionCostCalculator = new VariablePlusFixedSolutionCostCalculatorFactory(stateManager).createCalculator();
    
    SearchStrategy firstStrategy = new SearchStrategy(new SelectBest(), new GreedyAcceptance(1), solutionCostCalculator);
    firstStrategy.addModule(new RuinAndRecreateModule("randomRuinAndBestInsertion", iStrategy, randomRuin));
    
    SearchStrategy secondStrategy = new SearchStrategy(new SelectBest(), new GreedyAcceptance(1), solutionCostCalculator);

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        RuinStrategy radial = new RadialRuinStrategyFactory( 0.3, new AvgServiceAndShipmentDistance(vrp.getTransportCosts())).createStrategy(vrp);
        RuinStrategy random = new RandomRuinStrategyFactory(0.5).createStrategy(vrp);




        SolutionCostCalculator solutionCostCalculator = new SolutionCostCalculator() {


            @Override
            public double getCosts(VehicleRoutingProblemSolution solution) {
                double costs = 0.0;
                for(VehicleRoute route : solution.getRoutes()){

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  @Test(expected=IllegalStateException.class)
  public void whenANullModule_IsAdded_throwException(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    SearchStrategy strat = new SearchStrategy(select, accept, calc);
    strat.addModule(null);
    
  }

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  @Test
  public void whenStratRunsWithOneModule_runItOnes(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    final VehicleRoutingProblem vrp = mock(VehicleRoutingProblem.class);
    final VehicleRoutingProblemSolution newSol = mock(VehicleRoutingProblemSolution.class);
    
    when(select.selectSolution(null)).thenReturn(newSol);

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    InsertionStrategy bestInsertion = new BestInsertionBuilder(vrp, fleetManager, stateManager, cManager).build();
    
    RuinStrategy radial = new RadialRuinStrategyFactory(0.15, new AvgServiceDistance(vrp.getTransportCosts())).createStrategy(vrp);
    RuinStrategy random = new RandomRuinStrategyFactory(0.25).createStrategy(vrp);
    
    SolutionCostCalculator solutionCostCalculator = new SolutionCostCalculator() {
      
      @Override
      public double getCosts(VehicleRoutingProblemSolution solution) {
        double costs = 0.0;
        for(VehicleRoute route : solution.getRoutes()){

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  @Test
  public void whenStratRunsWithTwoModule_runItTwice(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    final VehicleRoutingProblem vrp = mock(VehicleRoutingProblem.class);
    final VehicleRoutingProblemSolution newSol = mock(VehicleRoutingProblemSolution.class);
    
    when(select.selectSolution(null)).thenReturn(newSol);

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  @Test
  public void whenStratRunsWithNModule_runItNTimes(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    final VehicleRoutingProblem vrp = mock(VehicleRoutingProblem.class);
    final VehicleRoutingProblemSolution newSol = mock(VehicleRoutingProblemSolution.class);
    
    when(select.selectSolution(null)).thenReturn(newSol);

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  @Test(expected=IllegalStateException.class) 
  public void whenSelectorDeliversNullSolution_throwException(){
    SolutionSelector select = mock(SolutionSelector.class);
    SolutionAcceptor accept = mock(SolutionAcceptor.class);
    SolutionCostCalculator calc = mock(SolutionCostCalculator.class);
    
    final VehicleRoutingProblem vrp = mock(VehicleRoutingProblem.class);
    
    when(select.selectSolution(null)).thenReturn(null);

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