public void read(String solomonFile) {
vrpBuilder.setFleetSize(FleetSize.INFINITE);
BufferedReader reader = getReader(solomonFile);
int vehicleCapacity = 0;
int counter = 0;
String line;
while ((line = readLine(reader)) != null) {
line = line.replace("\r", "");
line = line.trim();
String[] tokens = line.split(" +");
counter++;
if (counter == 5) {
vehicleCapacity = Integer.parseInt(tokens[1]);
continue;
}
if (counter > 9) {
if (tokens.length < 7) continue;
Coordinate coord = makeCoord(tokens[1], tokens[2]);
String customerId = tokens[0];
int demand = Integer.parseInt(tokens[3]);
double start = Double.parseDouble(tokens[4]) * timeProjectionFactor;
double end = Double.parseDouble(tokens[5]) * timeProjectionFactor;
double serviceTime = Double.parseDouble(tokens[6]) * timeProjectionFactor;
if (counter == 10) {
VehicleTypeImpl.Builder typeBuilder =
VehicleTypeImpl.Builder.newInstance("solomonType")
.addCapacityDimension(0, vehicleCapacity);
typeBuilder
.setCostPerDistance(1.0 * variableCostProjectionFactor)
.setFixedCost(fixedCostPerVehicle);
VehicleTypeImpl vehicleType = typeBuilder.build();
VehicleImpl vehicle =
VehicleImpl.Builder.newInstance("solomonVehicle")
.setEarliestStart(start)
.setLatestArrival(end)
.setStartLocation(
Location.Builder.newInstance().setId(customerId).setCoordinate(coord).build())
.setType(vehicleType)
.build();
vrpBuilder.addVehicle(vehicle);
} else {
Service service =
new Service.Builder(customerId)
.addSizeDimension(0, demand)
.setLocation(
Location.Builder.newInstance().setCoordinate(coord).setId(customerId).build())
.setServiceTime(serviceTime)
.setTimeWindow(TimeWindow.newInstance(start, end))
.build();
vrpBuilder.addJob(service);
}
}
}
close(reader);
}
private void buildShipments() {
Integer counter = 0;
for (Relation rel : relations) {
counter++;
String from = rel.from;
String to = rel.to;
int demand = rel.demand;
Shipment s =
Shipment.Builder.newInstance(counter.toString())
.addSizeDimension(0, demand)
.setPickupLocation(
Location.Builder.newInstance().setCoordinate(customers.get(from).coord).build())
.setPickupServiceTime(customers.get(from).serviceTime)
.setPickupTimeWindow(
TimeWindow.newInstance(customers.get(from).start, customers.get(from).end))
.setDeliveryLocation(
Location.Builder.newInstance().setCoordinate(customers.get(to).coord).build())
.setDeliveryServiceTime(customers.get(to).serviceTime)
.setDeliveryTimeWindow(
TimeWindow.newInstance(customers.get(to).start, customers.get(to).end))
.build();
vrpBuilder.addJob(s);
}
}
public void read(String filename) {
readShipments(filename);
buildShipments();
VehicleTypeImpl type =
VehicleTypeImpl.Builder.newInstance("type")
.addCapacityDimension(0, vehicleCapacity)
.setCostPerDistance(1.0)
.setFixedCost(fixCosts)
.build();
VehicleImpl vehicle =
VehicleImpl.Builder.newInstance("vehicle")
.setEarliestStart(depotOpeningTime)
.setLatestArrival(depotClosingTime)
.setStartLocation(
Location.Builder.newInstance().setCoordinate(customers.get(depotId).coord).build())
.setType(type)
.build();
vrpBuilder.addVehicle(vehicle);
}
private static Location loc(Coordinate coordinate) {
return Location.Builder.newInstance().setCoordinate(coordinate).build();
}