Beispiel #1
0
  private void readSolutions(XMLConfiguration vrpProblem) {
    if (solutions == null) return;
    List<HierarchicalConfiguration> solutionConfigs =
        vrpProblem.configurationsAt("solutions.solution");
    for (HierarchicalConfiguration solutionConfig : solutionConfigs) {
      String totalCost = solutionConfig.getString("cost");
      double cost = -1;
      if (totalCost != null) cost = Double.parseDouble(totalCost);
      List<HierarchicalConfiguration> routeConfigs =
          solutionConfig.configurationsAt("routes.route");
      List<VehicleRoute> routes = new ArrayList<VehicleRoute>();
      for (HierarchicalConfiguration routeConfig : routeConfigs) {
        // ! here, driverId is set to noDriver, no matter whats in driverId.
        Driver driver = DriverImpl.noDriver();
        String vehicleId = routeConfig.getString("vehicleId");
        Vehicle vehicle = getVehicle(vehicleId);
        if (vehicle == null) throw new IllegalStateException("vehicle is missing.");
        String start = routeConfig.getString("start");
        if (start == null) throw new IllegalStateException("route start-time is missing.");
        double departureTime = Double.parseDouble(start);

        String end = routeConfig.getString("end");
        if (end == null) throw new IllegalStateException("route end-time is missing.");

        VehicleRoute.Builder routeBuilder = VehicleRoute.Builder.newInstance(vehicle, driver);
        routeBuilder.setDepartureTime(departureTime);
        routeBuilder.setRouteEndArrivalTime(Double.parseDouble(end));
        List<HierarchicalConfiguration> actConfigs = routeConfig.configurationsAt("act");
        for (HierarchicalConfiguration actConfig : actConfigs) {
          String type = actConfig.getString("[@type]");
          if (type == null) throw new IllegalStateException("act[@type] is missing.");
          double arrTime = 0.;
          double endTime = 0.;
          String arrTimeS = actConfig.getString("arrTime");
          if (arrTimeS != null) arrTime = Double.parseDouble(arrTimeS);
          String endTimeS = actConfig.getString("endTime");
          if (endTimeS != null) endTime = Double.parseDouble(endTimeS);

          String serviceId = actConfig.getString("serviceId");
          if (serviceId != null) {
            Service service = getService(serviceId);
            routeBuilder.addService(service, arrTime, endTime);
          } else {
            String shipmentId = actConfig.getString("shipmentId");
            if (shipmentId == null)
              throw new IllegalStateException("either serviceId or shipmentId is missing");
            Shipment shipment = getShipment(shipmentId);
            if (shipment == null)
              throw new IllegalStateException(
                  "shipment with id " + shipmentId + " does not exist.");
            if (type.equals("pickupShipment")) {
              routeBuilder.addPickup(shipment, arrTime, endTime);
            } else if (type.equals("deliverShipment")) {
              routeBuilder.addDelivery(shipment, arrTime, endTime);
            } else
              throw new IllegalStateException(
                  "type "
                      + type
                      + " is not supported. Use 'pickupShipment' or 'deliverShipment' here");
          }
        }
        routes.add(routeBuilder.build());
      }
      VehicleRoutingProblemSolution solution = new VehicleRoutingProblemSolution(routes, cost);
      solutions.add(solution);
    }
  }
Beispiel #2
0
  private void readInitialRoutes(XMLConfiguration xmlConfig) {
    List<HierarchicalConfiguration> initialRouteConfigs =
        xmlConfig.configurationsAt("initialRoutes.route");
    for (HierarchicalConfiguration routeConfig : initialRouteConfigs) {
      Driver driver = DriverImpl.noDriver();
      String vehicleId = routeConfig.getString("vehicleId");
      Vehicle vehicle = getVehicle(vehicleId);
      if (vehicle == null) throw new IllegalStateException("vehicle is missing.");
      String start = routeConfig.getString("start");
      if (start == null) throw new IllegalStateException("route start-time is missing.");
      double departureTime = Double.parseDouble(start);

      VehicleRoute.Builder routeBuilder = VehicleRoute.Builder.newInstance(vehicle, driver);
      routeBuilder.setDepartureTime(departureTime);

      List<HierarchicalConfiguration> actConfigs = routeConfig.configurationsAt("act");
      for (HierarchicalConfiguration actConfig : actConfigs) {
        String type = actConfig.getString("[@type]");
        if (type == null) throw new IllegalStateException("act[@type] is missing.");
        double arrTime = 0.;
        double endTime = 0.;
        String arrTimeS = actConfig.getString("arrTime");
        if (arrTimeS != null) arrTime = Double.parseDouble(arrTimeS);
        String endTimeS = actConfig.getString("endTime");
        if (endTimeS != null) endTime = Double.parseDouble(endTimeS);

        String serviceId = actConfig.getString("serviceId");
        if (serviceId != null) {
          Service service = getService(serviceId);
          if (service == null)
            throw new IllegalStateException(
                "service to serviceId "
                    + serviceId
                    + " is missing (reference in one of your initial routes). make sure you define the service you refer to here in <services> </services>.");
          // !!!since job is part of initial route, it does not belong to jobs in problem, i.e.
          // variable jobs that can be assigned/scheduled
          freezedJobIds.add(serviceId);
          routeBuilder.addService(service, arrTime, endTime);
        } else {
          String shipmentId = actConfig.getString("shipmentId");
          if (shipmentId == null)
            throw new IllegalStateException("either serviceId or shipmentId is missing");
          Shipment shipment = getShipment(shipmentId);
          if (shipment == null)
            throw new IllegalStateException(
                "shipment to shipmentId "
                    + shipmentId
                    + " is missing (reference in one of your initial routes). make sure you define the shipment you refer to here in <shipments> </shipments>.");
          freezedJobIds.add(shipmentId);
          if (type.equals("pickupShipment")) {
            routeBuilder.addPickup(shipment, arrTime, endTime);
          } else if (type.equals("deliverShipment")) {
            routeBuilder.addDelivery(shipment, arrTime, endTime);
          } else
            throw new IllegalStateException(
                "type "
                    + type
                    + " is not supported. Use 'pickupShipment' or 'deliverShipment' here");
        }
      }
      VehicleRoute route = routeBuilder.build();
      vrpBuilder.addInitialVehicleRoute(route);
    }
  }