Package org.drools.planner.core.solution

Examples of org.drools.planner.core.solution.Solution

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        return configurer;
    }

    private Solver solve(XmlSolverConfigurer configurer, File unsolvedDataFile) {
        SolutionDao solutionDao = createSolutionDao();
        Solution planningProblem = solutionDao.readSolution(unsolvedDataFile);
        Solver solver = configurer.buildSolver();
        solver.setPlanningProblem(planningProblem);
        solver.solve();
        return solver;
    }
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        solver.solve();
        return solver;
    }

    private void assertBestSolution(Solver solver, String scoreAttainedString) {
        Solution bestSolution = solver.getBestSolution();
        assertNotNull(bestSolution);
        Score bestScore = bestSolution.getScore();
        Score scoreAttained = solver.getScoreDefinition().parseScore(scoreAttainedString);
        assertTrue("The bestScore (" + bestScore + ") must be at least scoreAttained (" + scoreAttained + ").",
                bestScore.compareTo(scoreAttained) >= 0);
    }
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        scoreDirector = localSearchSolverPhaseScope.getScoreDirector();
    }

    public List<Move> createMoveList(Solution solution) {
        List<Move> moveList = new ArrayList<Move>();
        Solution workingSolution = scoreDirector.getWorkingSolution();
        for (PlanningEntityDescriptor entityDescriptor : solutionDescriptor.getPlanningEntityDescriptors()) {
            for (PlanningVariableDescriptor variableDescriptor : entityDescriptor.getPlanningVariableDescriptors()) {
                Map<Object,List<Object>> variableToEntitiesMap = scoreDirector.getVariableToEntitiesMap(
                        variableDescriptor);
                // TODO this fetches the list twice
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    public String getFileExtension() {
        return "xml";
    }

    public Solution read(File inputSolutionFile) {
        Solution unsolvedSolution;
        Reader reader = null;
        try {
            // xStream.fromXml(InputStream) does not use UTF-8
            reader = new InputStreamReader(new FileInputStream(inputSolutionFile), "UTF-8");
            unsolvedSolution = (Solution) xStream.fromXML(reader);
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                statistic.addListener(solver, solverBenchmark.getName());
            }

            solver.setPlanningProblem(readPlanningProblem());
            solver.solve();
            Solution outputSolution = solver.getBestSolution();

            result.setTimeMillisSpend(solver.getTimeMillisSpend());
            DefaultSolverScope solverScope = ((DefaultSolver) solver).getSolverScope();
            result.setCalculateCount(solverScope.getCalculateCount());
            result.setScore(outputSolution.getScore());
            SolutionDescriptor solutionDescriptor = ((DefaultSolver) solver).getSolutionDescriptor();
            result.setPlanningEntityCount(solutionDescriptor.getPlanningEntityCount(outputSolution));
            result.setProblemScale(solutionDescriptor.getProblemScale(outputSolution));
            for (ProblemStatistic statistic : problemStatisticList) {
                statistic.removeListener(solver, solverBenchmark.getName());
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    public String getFileExtension() {
        return "xml";
    }

    public Solution read(File inputSolutionFile) {
        Solution unsolvedSolution;
        Reader reader = null;
        try {
            // xStream.fromXml(InputStream) does not use UTF-8
            reader = new InputStreamReader(new FileInputStream(inputSolutionFile), "UTF-8");
            unsolvedSolution = (Solution) xStream.fromXML(reader);
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        return problemBenchmark.getName() + "_" + solverBenchmark.getName();
    }

    public SingleBenchmark call() {
        Runtime runtime = Runtime.getRuntime();
        Solution inputSolution = problemBenchmark.readPlanningProblem();
        if (!problemBenchmark.getPlannerBenchmark().hasMultipleParallelBenchmarks()) {
            runtime.gc();
            usedMemoryAfterInputSolution = runtime.totalMemory() - runtime.freeMemory();
        }
        logger.trace("Benchmark inputSolution has been read for singleBenchmark ({}_{}).",
                problemBenchmark.getName(), solverBenchmark.getName() );

        // Intentionally create a fresh solver for every SingleBenchmark to reset Random, tabu lists, ...
        Solver solver = solverBenchmark.getSolverConfig().buildSolver();
        for (ProblemStatistic problemStatistic : problemBenchmark.getProblemStatisticList()) {
            SingleStatistic singleStatistic = problemStatistic.createSingleStatistic();
            singleStatistic.open(solver);
            singleStatisticMap.put(problemStatistic.getProblemStatisticType(), singleStatistic);
        }

        solver.setPlanningProblem(inputSolution);
        solver.solve();
        Solution outputSolution = solver.getBestSolution();

        timeMillisSpend = solver.getTimeMillisSpend();
        DefaultSolverScope solverScope = ((DefaultSolver) solver).getSolverScope();
        calculateCount = solverScope.getCalculateCount();
        score = outputSolution.getScore();
        SolutionDescriptor solutionDescriptor = ((DefaultSolver) solver).getSolutionDescriptor();
        planningEntityCount = solutionDescriptor.getPlanningEntityCount(outputSolution);
        problemBenchmark.registerProblemScale(solutionDescriptor.getProblemScale(outputSolution));

        for (SingleStatistic singleStatistic : singleStatisticMap.values()) {
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            bestScoreImproved = newScore.compareTo(bestScore) > 0;
        }
        stepScope.setBestScoreImproved(bestScoreImproved);
        if (bestScoreImproved) {
            solverPhaseScope.setBestSolutionStepIndex(stepScope.getStepIndex());
            Solution newBestSolution = stepScope.createOrGetClonedSolution();
            updateBestSolution(solverScope, newBestSolution);
        }
    }
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        scoreDirector = localSearchSolverPhaseScope.getScoreDirector();
    }

    public List<Move> createMoveList(Solution solution) {
        List<Move> moveList = new ArrayList<Move>();
        Solution workingSolution = scoreDirector.getWorkingSolution();
        for (PlanningEntityDescriptor entityDescriptor : solutionDescriptor.getPlanningEntityDescriptors()) {
            for (PlanningVariableDescriptor variableDescriptor : entityDescriptor.getPlanningVariableDescriptors()) {
                if (variableDescriptor.isChained()) {
                    Map<Object,List<Object>> variableToEntitiesMap = scoreDirector.getVariableToEntitiesMap(
                            variableDescriptor);
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    }

    private void registerListeners() {
        solutionBusiness.addSolverEventLister(new SolverEventListener() {
            public void bestSolutionChanged(BestSolutionChangedEvent event) {
                final Solution bestSolution = event.getNewBestSolution();
                SwingUtilities.invokeLater(new Runnable() {
                    public void run() {
                        resultLabel.setText("Latest best score: " + bestSolution.getScore());
                    }
                });
            }
        });
        addWindowListener(new WindowAdapter() {
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Related Classes of org.drools.planner.core.solution.Solution

  • org.drools.planner.benchmark.core.ProblemBenchmark
  • org.drools.planner.benchmark.core.SingleBenchmark
  • org.drools.planner.benchmark.core.XStreamProblemIO
  • org.drools.planner.benchmark.SolverBenchmarkSuite
  • org.drools.planner.core.bestsolution.BestSolutionRecaller
  • org.drools.planner.core.localsearch.bestsolution.BestSolutionRecaller
  • org.drools.planner.core.move.generic.GenericChainedChangeMoveFactory
  • org.drools.planner.core.move.generic.GenericChainedChangePartMoveFactory
  • org.drools.planner.core.phase.AbstractSolverPhase
  • org.drools.planner.examples.common.app.SolverPerformanceTest
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