@Test
public void trackLocalSearch() {
SolverFactory<NQueens> solverFactory =
SolverFactory.createFromXmlResource(NQueensApp.SOLVER_CONFIG);
SolverConfig solverConfig = solverFactory.getSolverConfig();
NQueensGenerator generator = new NQueensGenerator();
NQueens planningProblem = NQueensSolutionInitializer.initialize(generator.createNQueens(N));
LocalSearchPhaseConfig localSearchPhaseConfig = new LocalSearchPhaseConfig();
localSearchPhaseConfig.setAcceptorConfig(acceptorConfig);
localSearchPhaseConfig.setForagerConfig(localSearchForagerConfig);
localSearchPhaseConfig.getForagerConfig().setBreakTieRandomly(false);
localSearchPhaseConfig.setMoveSelectorConfig(new ChangeMoveSelectorConfig());
localSearchPhaseConfig.getMoveSelectorConfig().setSelectionOrder(SelectionOrder.ORIGINAL);
localSearchPhaseConfig.setTerminationConfig(new TerminationConfig());
localSearchPhaseConfig.getTerminationConfig().setStepCountLimit(20);
solverConfig.getPhaseConfigList().set(1, localSearchPhaseConfig);
NQueensStepTracker listener = new NQueensStepTracker();
DefaultSolver<NQueens> solver = (DefaultSolver<NQueens>) solverFactory.buildSolver();
solver.addPhaseLifecycleListener(listener);
NQueens bestSolution = solver.solve(planningProblem);
assertNotNull(bestSolution);
assertTrackingList(expectedCoordinates, listener.getTrackingList());
}
protected SolverFactory buildSolverFactory() {
SolverFactory solverFactory = SolverFactory.createFromXmlResource(createSolverConfigResource());
SolverConfig solverConfig = solverFactory.getSolverConfig();
solverConfig.setTerminationConfig(new TerminationConfig());
ConstructionHeuristicPhaseConfig constructionHeuristicPhaseConfig =
new ConstructionHeuristicPhaseConfig();
constructionHeuristicPhaseConfig.setConstructionHeuristicType(constructionHeuristicType);
solverConfig.setPhaseConfigList(Arrays.<PhaseConfig>asList(constructionHeuristicPhaseConfig));
return solverFactory;
}
@Override
protected SolverFactory<Solution_> buildSolverFactory() {
SolverFactory<Solution_> solverFactory =
SolverFactory.createFromXmlResource(createSolverConfigResource());
SolverConfig solverConfig = solverFactory.getSolverConfig();
solverConfig.setTerminationConfig(new TerminationConfig());
ExhaustiveSearchPhaseConfig exhaustiveSearchPhaseConfig = new ExhaustiveSearchPhaseConfig();
exhaustiveSearchPhaseConfig.setExhaustiveSearchType(exhaustiveSearchType);
solverConfig.setPhaseConfigList(Arrays.asList(exhaustiveSearchPhaseConfig));
return solverFactory;
}
@Override
protected Solver createSolver() {
SolverFactory solverFactory = SolverFactory.createFromXmlResource(SOLVER_CONFIG);
return solverFactory.buildSolver();
}
public VehicleRoutingDistanceTypeComparison() {
vehicleRoutingDao = new VehicleRoutingDao();
SolverFactory solverFactory =
SolverFactory.createFromXmlResource(VehicleRoutingApp.SOLVER_CONFIG);
scoreDirectorFactory = solverFactory.buildSolver().getScoreDirectorFactory();
}
@Override
protected Solver<CloudBalance> createSolver() {
SolverFactory<CloudBalance> solverFactory = SolverFactory.createFromXmlResource(SOLVER_CONFIG);
return solverFactory.buildSolver();
}