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Code Issues Releases Wiki Activity

update tsplibreader to actually read tsp

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This commit is contained in:
oblonski 2015-02-18 22:25:55 +01:00
parent 07ac961048
commit 16085ab97a
1 changed files with 29 additions and 9 deletions
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38
jsprit-instances/src/main/java/jsprit/instance/reader/TSPLIB95Reader.java
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@ -17,6 +17,7 @@
package jsprit.instance.reader;
import jsprit.core.problem.Location;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.job.Service;
import jsprit.core.problem.vehicle.VehicleImpl;
@ -40,18 +41,23 @@ public class TSPLIB95Reader {
BufferedReader reader = getBufferedReader(filename);
String line;
Coordinate[] coords = null;
Integer[] demands = null;
int[] demands = null;
Integer capacity = null;
List<Integer> depotIds = new ArrayList<Integer>();
boolean isCoordSection = false;
boolean isDemandSection = false;
boolean isDepotSection = false;
int dimensions = 0;
while( ( line = getLine(reader) ) != null ){
if(line.startsWith("EOF")){
break;
}
if(line.startsWith("DIMENSION")){
String[] tokens = line.split(":");
String dim = tokens[1].trim();
coords = new Coordinate[Integer.parseInt(dim)];
demands = new Integer[Integer.parseInt(dim)];
dimensions = Integer.parseInt(dim);
coords = new Coordinate[dimensions];
demands = new int[dimensions];
continue;
}
if(line.startsWith("CAPACITY")){
@ -79,13 +85,13 @@ public class TSPLIB95Reader {
}
if(isCoordSection){
if(coords == null) throw new IllegalStateException("DIMENSION tag missing");
String[] tokens = line.split("\\s+");
String[] tokens = line.trim().split("\\s+");
coords[Integer.parseInt(tokens[0]) - 1] = Coordinate.newInstance(Double.parseDouble(tokens[1]), Double.parseDouble(tokens[2]));
continue;
}
if(isDemandSection){
if(demands == null) throw new IllegalStateException("DIMENSION tag missing");
String[] tokens = line.split("\\s+");
String[] tokens = line.trim().split("\\s+");
demands[Integer.parseInt(tokens[0]) - 1] = Integer.parseInt(tokens[1]);
continue;
}
@ -106,13 +112,27 @@ public class TSPLIB95Reader {
.setStartLocationCoordinate(coords[depotId - 1]).setType(type).build();
vrpBuilder.addVehicle(vehicle);
}
for(int i=0;i<demands.length;i++){
if(demands[i] == 0) continue;
String id = "" + (i+1);
Service service = Service.Builder.newInstance(id).setLocationId(id).setCoord(coords[i]).addSizeDimension(0,demands[i]).build();
for (int i = 0; i < coords.length; i++) {
String id = "" + (i + 1);
if(depotIds.isEmpty()){
if(i==0) {
VehicleImpl vehicle = VehicleImpl.Builder.newInstance("start")
.setStartLocation(Location.Builder.newInstance().setId(id)
.setCoordinate(coords[i]).build())
.build();
vrpBuilder.addVehicle(vehicle);
continue;
}
}
Service service = Service.Builder.newInstance(id)
.setLocation(Location.Builder.newInstance().setId(id).setCoordinate(coords[i]).build())
.addSizeDimension(0, demands[i]).build();
vrpBuilder.addJob(service);
}
}
private void close(BufferedReader reader) {