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);
}
}
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);
}
}
