Package org.optaplanner.core.api.solver

Examples of org.optaplanner.core.api.solver.Solver

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    }

    @Override
    protected void onExchange(Exchange exchange) throws Exception {
        ObjectHelper.notNull(solverFactory, "solverFactory");
        Solver solver = solverFactory.buildSolver();

        Solution planningProblem = exchange.getIn().getMandatoryBody(Solution.class);

        solver.setPlanningProblem(planningProblem);
        solver.solve();
        Solution bestSolution = solver.getBestSolution();

        exchange.getOut().setBody(bestSolution);
        // propagate headers and attachments
        exchange.getOut().setHeaders(exchange.getIn().getHeaders());
        exchange.getOut().setAttachments(exchange.getIn().getAttachments());
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    public void setup(HttpSession session) {
        terminateEarly(session);

        SolverFactory solverFactory = SolverFactory.createFromXmlResource(
                "org/optaplanner/examples/cloudbalancing/solver/cloudBalancingSolverConfig.xml");
        Solver solver = solverFactory.buildSolver();
        session.setAttribute(CloudBalancingSessionAttributeName.SOLVER, solver);

        // Load a problem with 40 computers and 120 processes
        CloudBalance unsolvedSolution = new CloudBalancingGenerator(true).createCloudBalance(100, 300);
        session.setAttribute(CloudBalancingSessionAttributeName.SHOWN_SOLUTION, unsolvedSolution);
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        CloudBalance unsolvedSolution = new CloudBalancingGenerator(true).createCloudBalance(100, 300);
        session.setAttribute(CloudBalancingSessionAttributeName.SHOWN_SOLUTION, unsolvedSolution);
    }

    public void solve(final HttpSession session) {
        final Solver solver = (Solver) session.getAttribute(CloudBalancingSessionAttributeName.SOLVER);
        final CloudBalance unsolvedSolution = (CloudBalance) session.getAttribute(CloudBalancingSessionAttributeName.SHOWN_SOLUTION);

        solver.addEventListener(new SolverEventListener<CloudBalance>() {
            public void bestSolutionChanged(BestSolutionChangedEvent<CloudBalance> event) {
                CloudBalance bestSolution = event.getNewBestSolution();
                session.setAttribute(CloudBalancingSessionAttributeName.SHOWN_SOLUTION, bestSolution);
            }
        });
        solvingExecutor.submit(new Runnable() {
            public void run() {
                solver.solve(unsolvedSolution);
            }
        });
    }
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            }
        });
    }

    public void terminateEarly(HttpSession session) {
        final Solver solver = (Solver) session.getAttribute(CloudBalancingSessionAttributeName.SOLVER);
        if (solver != null) {
            solver.terminateEarly();
            session.setAttribute(CloudBalancingSessionAttributeName.SOLVER, null);
        }
    }
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    public void setup(HttpSession session) {
        terminateEarly(session);

        SolverFactory solverFactory = SolverFactory.createFromXmlResource(
                "org/optaplanner/examples/vehiclerouting/solver/vehicleRoutingSolverConfig.xml");
        Solver solver = solverFactory.buildSolver();
        session.setAttribute(VrpSessionAttributeName.SOLVER, solver);

        URL unsolvedSolutionURL = getClass().getResource("/org/optaplanner/webexamples/vehiclerouting/A-n33-k6.vrp");
        VehicleRoutingSolution unsolvedSolution = (VehicleRoutingSolution) new VehicleRoutingImporter(true)
                .readSolution(unsolvedSolutionURL);
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                .readSolution(unsolvedSolutionURL);
        session.setAttribute(VrpSessionAttributeName.SHOWN_SOLUTION, unsolvedSolution);
    }

    public void solve(final HttpSession session) {
        final Solver solver = (Solver) session.getAttribute(VrpSessionAttributeName.SOLVER);
        final VehicleRoutingSolution unsolvedSolution = (VehicleRoutingSolution) session.getAttribute(VrpSessionAttributeName.SHOWN_SOLUTION);

        solver.addEventListener(new SolverEventListener<VehicleRoutingSolution>() {
            public void bestSolutionChanged(BestSolutionChangedEvent<VehicleRoutingSolution> event) {
                VehicleRoutingSolution bestSolution = event.getNewBestSolution();
                session.setAttribute(VrpSessionAttributeName.SHOWN_SOLUTION, bestSolution);
            }
        });
        solvingExecutor.submit(new Runnable() {
            public void run() {
                solver.solve(unsolvedSolution);
            }
        });
    }
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            }
        });
    }

    public void terminateEarly(HttpSession session) {
        final Solver solver = (Solver) session.getAttribute(VrpSessionAttributeName.SOLVER);
        if (solver != null) {
            solver.terminateEarly();
            session.setAttribute(VrpSessionAttributeName.SOLVER, null);
        }
    }
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    }

    @Override
    protected void onExchange(Exchange exchange) throws Exception {
        ObjectHelper.notNull(solverFactory, "solverFactory");
        Solver solver = solverFactory.buildSolver();

        Solution planningProblem = exchange.getIn().getMandatoryBody(Solution.class);

        solver.solve(planningProblem);
        Solution bestSolution = solver.getBestSolution();

        exchange.getOut().setBody(bestSolution);
        // propagate headers and attachments
        exchange.getOut().setHeaders(exchange.getIn().getHeaders());
        exchange.getOut().setAttachments(exchange.getIn().getAttachments());
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            TerminationConfig tmpTerminationConfig = originalTerminationConfig == null
                    ? new TerminationConfig() : originalTerminationConfig.clone();
            tmpTerminationConfig.shortenTimeMillisSpentLimit(timeLeft);
            solverBenchmarkResult.getSolverConfig().setTerminationConfig(tmpTerminationConfig);

            Solver solver = solverBenchmarkResult.getSolverConfig().buildSolver();
            solver.solve(readPlanningProblem());

            solverBenchmarkResult.getSolverConfig().setTerminationConfig(originalTerminationConfig);
            long timeSpent = System.currentTimeMillis() - startingTimeMillis;
            timeLeft = warmUpTimeMillisSpentLimit - timeSpent;
            if (timeLeft <= 0L) {
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public class NQueensAppTest {

    @Test
    public void createSolverByApi() {
        NQueensApp nQueensApp = new NQueensApp();
        Solver solver = nQueensApp.createSolverByApi();
        assertNotNull(solver);
    }
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Related Classes of org.optaplanner.core.api.solver.Solver

  • org.apache.camel.component.optaplanner.OptaPlannerEndpoint
  • org.optaplanner.benchmark.impl.result.ProblemBenchmarkResult
  • org.optaplanner.benchmark.impl.SingleBenchmarkRunner
  • org.optaplanner.examples.cloudbalancing.app.CloudBalancingDaemonTest
  • org.optaplanner.examples.cloudbalancing.app.CloudBalancingHelloWorld
  • org.optaplanner.examples.common.app.PhaseTest
  • org.optaplanner.examples.common.app.SolveAllTurtleTest
  • org.optaplanner.examples.common.app.SolverPerformanceTest
  • org.optaplanner.examples.nqueens.app.NQueensAppTest
  • org.optaplanner.examples.nqueens.app.NQueensHelloWorld
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