@Override
public void handleJobInsertion(Job job, InsertionData iData, VehicleRoute route) {
if (job instanceof Service) {
route.setVehicleAndDepartureTime(
iData.getSelectedVehicle(), iData.getVehicleDepartureTime());
if (!iData.getSelectedVehicle().isReturnToDepot()) {
if (iData.getDeliveryInsertionIndex()
>= route.getTourActivities().getActivities().size()) {
setEndLocation(route, (Service) job);
}
}
TourActivity activity = vehicleRoutingProblem.copyAndGetActivities(job).get(0);
route.getTourActivities().addActivity(iData.getDeliveryInsertionIndex(), activity);
} else delegator.handleJobInsertion(job, iData, route);
}
private void writeInitialRoutes(XMLConf xmlConfig) {
if (vrp.getInitialVehicleRoutes().isEmpty()) return;
String path = "initialRoutes.route";
int routeCounter = 0;
for (VehicleRoute route : vrp.getInitialVehicleRoutes()) {
xmlConfig.setProperty(path + "(" + routeCounter + ").driverId", route.getDriver().getId());
xmlConfig.setProperty(path + "(" + routeCounter + ").vehicleId", route.getVehicle().getId());
xmlConfig.setProperty(path + "(" + routeCounter + ").start", route.getStart().getEndTime());
int actCounter = 0;
for (TourActivity act : route.getTourActivities().getActivities()) {
xmlConfig.setProperty(
path + "(" + routeCounter + ").act(" + actCounter + ")[@type]", act.getName());
if (act instanceof JobActivity) {
Job job = ((JobActivity) act).getJob();
if (job instanceof Service) {
xmlConfig.setProperty(
path + "(" + routeCounter + ").act(" + actCounter + ").serviceId", job.getId());
} else if (job instanceof Shipment) {
xmlConfig.setProperty(
path + "(" + routeCounter + ").act(" + actCounter + ").shipmentId", job.getId());
} else {
throw new IllegalStateException(
"cannot write solution correctly since job-type is not know. make sure you use either service or shipment, or another writer");
}
}
xmlConfig.setProperty(
path + "(" + routeCounter + ").act(" + actCounter + ").arrTime", act.getArrTime());
xmlConfig.setProperty(
path + "(" + routeCounter + ").act(" + actCounter + ").endTime", act.getEndTime());
actCounter++;
}
xmlConfig.setProperty(path + "(" + routeCounter + ").end", route.getEnd().getArrTime());
routeCounter++;
}
}
@Override
public void visit(VehicleRoute route) {
begin(route);
Iterator<TourActivity> revIterator = route.getTourActivities().reverseActivityIterator();
while (revIterator.hasNext()) {
visit(revIterator.next());
}
finish();
}
public void write(String filename) {
if (!filename.endsWith(".xml")) filename += ".xml";
log.info("write vrp: " + filename);
XMLConf xmlConfig = new XMLConf();
xmlConfig.setFileName(filename);
xmlConfig.setRootElementName("problem");
xmlConfig.setAttributeSplittingDisabled(true);
xmlConfig.setDelimiterParsingDisabled(true);
writeProblemType(xmlConfig);
writeVehiclesAndTheirTypes(xmlConfig);
// might be sorted?
List<Job> jobs = new ArrayList<Job>();
jobs.addAll(vrp.getJobs().values());
for (VehicleRoute r : vrp.getInitialVehicleRoutes()) {
jobs.addAll(r.getTourActivities().getJobs());
}
writeServices(xmlConfig, jobs);
writeShipments(xmlConfig, jobs);
writeInitialRoutes(xmlConfig);
writeSolutions(xmlConfig);
OutputFormat format = new OutputFormat();
format.setIndenting(true);
format.setIndent(5);
try {
Document document = xmlConfig.createDoc();
Element element = document.getDocumentElement();
element.setAttribute("xmlns", "http://www.w3schools.com");
element.setAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
element.setAttribute("xsi:schemaLocation", "http://www.w3schools.com vrp_xml_schema.xsd");
} catch (ConfigurationException e) {
logger.error("Exception:", e);
e.printStackTrace();
System.exit(1);
}
try {
Writer out = new FileWriter(filename);
XMLSerializer serializer = new XMLSerializer(out, format);
serializer.serialize(xmlConfig.getDocument());
out.close();
} catch (IOException e) {
logger.error("Exception:", e);
e.printStackTrace();
System.exit(1);
}
}
@Override
public void handleJobInsertion(Job job, InsertionData iData, VehicleRoute route) {
if (job instanceof Shipment) {
List<AbstractActivity> acts = vehicleRoutingProblem.copyAndGetActivities(job);
TourActivity pickupShipment = acts.get(0);
TourActivity deliverShipment = acts.get(1);
route.setVehicleAndDepartureTime(
iData.getSelectedVehicle(), iData.getVehicleDepartureTime());
if (!iData.getSelectedVehicle().isReturnToDepot()) {
if (iData.getDeliveryInsertionIndex() >= route.getActivities().size()) {
setEndLocation(route, (Shipment) job);
}
}
route.getTourActivities().addActivity(iData.getDeliveryInsertionIndex(), deliverShipment);
route.getTourActivities().addActivity(iData.getPickupInsertionIndex(), pickupShipment);
} else delegator.handleJobInsertion(job, iData, route);
}
@Test
public void whenSolvingProblem2_nuJobsInSolutionShouldBe4() {
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
new VrpXMLReader(vrpBuilder)
.read("src/test/resources/simpleProblem_inclShipments_iniRoutes.xml");
VehicleRoutingProblem vrp = vrpBuilder.build();
VehicleRoutingAlgorithm vra = new SchrimpfFactory().createAlgorithm(vrp);
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
VehicleRoutingProblemSolution solution = Solutions.bestOf(solutions);
SolutionPrinter.print(vrp, solution, SolutionPrinter.Print.VERBOSE);
int jobsInSolution = 0;
for (VehicleRoute r : solution.getRoutes()) {
jobsInSolution += r.getTourActivities().jobSize();
}
assertEquals(4, jobsInSolution);
}
private void writeSolutions(XMLConf xmlConfig) {
if (solutions == null) return;
String solutionPath = "solutions.solution";
int counter = 0;
for (VehicleRoutingProblemSolution solution : solutions) {
xmlConfig.setProperty(solutionPath + "(" + counter + ").cost", solution.getCost());
int routeCounter = 0;
for (VehicleRoute route : solution.getRoutes()) {
// xmlConfig.setProperty(solutionPath + "(" + counter + ").routes.route(" + routeCounter
// + ").cost", route.getCost());
xmlConfig.setProperty(
solutionPath + "(" + counter + ").routes.route(" + routeCounter + ").driverId",
route.getDriver().getId());
xmlConfig.setProperty(
solutionPath + "(" + counter + ").routes.route(" + routeCounter + ").vehicleId",
route.getVehicle().getId());
xmlConfig.setProperty(
solutionPath + "(" + counter + ").routes.route(" + routeCounter + ").start",
route.getStart().getEndTime());
int actCounter = 0;
for (TourActivity act : route.getTourActivities().getActivities()) {
xmlConfig.setProperty(
solutionPath
+ "("
+ counter
+ ").routes.route("
+ routeCounter
+ ").act("
+ actCounter
+ ")[@type]",
act.getName());
if (act instanceof JobActivity) {
Job job = ((JobActivity) act).getJob();
if (job instanceof Service) {
xmlConfig.setProperty(
solutionPath
+ "("
+ counter
+ ").routes.route("
+ routeCounter
+ ").act("
+ actCounter
+ ").serviceId",
job.getId());
} else if (job instanceof Shipment) {
xmlConfig.setProperty(
solutionPath
+ "("
+ counter
+ ").routes.route("
+ routeCounter
+ ").act("
+ actCounter
+ ").shipmentId",
job.getId());
} else {
throw new IllegalStateException(
"cannot write solution correctly since job-type is not know. make sure you use either service or shipment, or another writer");
}
}
xmlConfig.setProperty(
solutionPath
+ "("
+ counter
+ ").routes.route("
+ routeCounter
+ ").act("
+ actCounter
+ ").arrTime",
act.getArrTime());
xmlConfig.setProperty(
solutionPath
+ "("
+ counter
+ ").routes.route("
+ routeCounter
+ ").act("
+ actCounter
+ ").endTime",
act.getEndTime());
actCounter++;
}
xmlConfig.setProperty(
solutionPath + "(" + counter + ").routes.route(" + routeCounter + ").end",
route.getEnd().getArrTime());
routeCounter++;
}
int unassignedJobCounter = 0;
for (Job unassignedJob : solution.getUnassignedJobs()) {
xmlConfig.setProperty(
solutionPath
+ "("
+ counter
+ ").unassignedJobs.job("
+ unassignedJobCounter
+ ")[@id]",
unassignedJob.getId());
unassignedJobCounter++;
}
counter++;
}
}