/**
* Builds and returns the vehicle.
*
* <p>if {@link VehicleType} is not set, default vehicle-type is set with id="default" and
* capacity=0
*
* <p>if startLocationId || locationId is null (=> startLocationCoordinate || locationCoordinate
* must be set) then startLocationId=startLocationCoordinate.toString() and
* locationId=locationCoordinate.toString() [coord.toString() --> [x=x_val][y=y_val])
*
* <p>if endLocationId is null and endLocationCoordinate is set then
* endLocationId=endLocationCoordinate.toString()
*
* <p>if endLocationId==null AND endLocationCoordinate==null then endLocationId=startLocationId
* AND endLocationCoord=startLocationCoord Thus endLocationId can never be null even
* returnToDepot is false.
*
* @return vehicle
* @throws IllegalStateException if both locationId and locationCoord is not set or
* (endLocationCoord!=null AND returnToDepot=false) or (endLocationId!=null AND
* returnToDepot=false)
*/
public VehicleImpl build() {
if (startLocation != null && endLocation != null) {
if (!startLocation.getId().equals(endLocation.getId()) && !returnToDepot)
throw new IllegalStateException(
"this must not be. you specified both endLocationId and open-routes. this is contradictory. <br>"
+ "if you set endLocation, returnToDepot must be true. if returnToDepot is false, endLocationCoord must not be specified.");
}
if (startLocation != null && endLocation == null) {
endLocation = startLocation;
}
if (startLocation == null && endLocation == null) {
throw new IllegalStateException(
"vehicle requires startLocation. but neither locationId nor locationCoord nor startLocationId nor startLocationCoord has been set");
}
skills = skillBuilder.build();
return new VehicleImpl(this);
}
private VehicleImpl(Builder builder) {
id = builder.id;
type = builder.type;
earliestDeparture = builder.earliestStart;
latestArrival = builder.latestArrival;
returnToDepot = builder.returnToDepot;
skills = builder.skills;
endLocation = builder.endLocation;
startLocation = builder.startLocation;
setVehicleIdentifier(
new VehicleTypeKey(
type.getTypeId(),
startLocation.getId(),
endLocation.getId(),
earliestDeparture,
latestArrival,
skills));
}
private double calculateDistance(Location fromLocation, Location toLocation) {
Coordinate from = null;
Coordinate to = null;
if (fromLocation.getCoordinate() != null & toLocation.getCoordinate() != null) {
from = fromLocation.getCoordinate();
to = toLocation.getCoordinate();
} else if (locations != null) {
from = locations.getCoord(fromLocation.getId());
to = locations.getCoord(toLocation.getId());
}
if (from == null || to == null) throw new NullPointerException();
return calculateDistance(from, to);
}
public void read(String fileName) {
vrpBuilder.setFleetSize(FleetSize.FINITE);
BufferedReader reader = getReader(fileName);
int vrpType;
int nOfDepots = 0;
int nOfCustomers = 0;
int nOfVehiclesAtEachDepot = 0;
int counter = 0;
String line;
List<List<Builder>> vehiclesAtDepot = new ArrayList<List<Builder>>();
int depotCounter = 0;
while ((line = readLine(reader)) != null) {
line = line.replace("\r", "");
line = line.trim();
String[] tokens = line.split("\\s+");
if (counter == 0) {
vrpType = Integer.parseInt(tokens[0].trim());
if (vrpType != 2)
throw new IllegalStateException("expect vrpType to be equal to 2 and thus to be MDVRP");
nOfVehiclesAtEachDepot = Integer.parseInt(tokens[1].trim());
nOfCustomers = Integer.parseInt(tokens[2].trim());
nOfDepots = Integer.parseInt(tokens[3].trim());
} else if (counter <= nOfDepots) {
String depot = Integer.valueOf(counter).toString();
int duration = Integer.parseInt(tokens[0].trim());
if (duration == 0) duration = 999999;
int capacity = Integer.parseInt(tokens[1].trim());
VehicleTypeImpl vehicleType =
VehicleTypeImpl.Builder.newInstance(counter + "_cordeauType")
.addCapacityDimension(0, capacity)
.setCostPerDistance(1.0)
.setFixedCost(0)
.build();
List<Builder> builders = new ArrayList<VehicleImpl.Builder>();
for (int vehicleCounter = 0; vehicleCounter < nOfVehiclesAtEachDepot; vehicleCounter++) {
Builder vBuilder =
VehicleImpl.Builder.newInstance(
depot + "_" + (vehicleCounter + 1) + "_cordeauVehicle");
vBuilder.setLatestArrival(duration).setType(vehicleType);
builders.add(vBuilder);
}
vehiclesAtDepot.add(builders);
} else if (counter <= (nOfCustomers + nOfDepots)) {
String id = tokens[0].trim();
Coordinate customerCoord = makeCoord(tokens[1].trim(), tokens[2].trim());
double serviceTime = Double.parseDouble(tokens[3].trim());
int demand = Integer.parseInt(tokens[4].trim());
Service service =
Service.Builder.newInstance(id)
.addSizeDimension(0, demand)
.setServiceTime(serviceTime)
.setLocation(
Location.Builder.newInstance().setId(id).setCoordinate(customerCoord).build())
.build();
vrpBuilder.addJob(service);
} else if (counter <= (nOfCustomers + nOfDepots + nOfDepots)) {
Coordinate depotCoord = makeCoord(tokens[1].trim(), tokens[2].trim());
List<Builder> vBuilders = vehiclesAtDepot.get(depotCounter);
for (Builder vBuilder : vBuilders) {
vBuilder.setStartLocation(Location.newInstance(depotCoord.getX(), depotCoord.getY()));
VehicleImpl vehicle = vBuilder.build();
vrpBuilder.addVehicle(vehicle);
}
depotCounter++;
} else {
throw new IllegalStateException("there are more lines than expected in file.");
}
counter++;
}
close(reader);
}
