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Code Issues Releases Wiki Activity

remove randomness from vehicle manager

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This commit is contained in:
oblonski 2016-07-18 08:25:46 +02:00
parent 070aef735f
commit 5307e65c10
1 changed files with 17 additions and 14 deletions
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31
jsprit-core/src/main/java/com/graphhopper/jsprit/core/problem/vehicle/VehicleFleetManagerImpl.java
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@ -16,11 +16,13 @@
******************************************************************************/
package com.graphhopper.jsprit.core.problem.vehicle;
import com.graphhopper.jsprit.core.util.RandomNumberGeneration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.*;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Random;
class VehicleFleetManagerImpl implements VehicleFleetManager {
@ -33,6 +35,8 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
private ArrayList<Vehicle> vehicleList;
private int index = 0;
TypeContainer() {
super();
vehicleList = new ArrayList<Vehicle>();
@ -50,17 +54,19 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
}
Vehicle getVehicle() {
return vehicleList.get(0);
if(index >= vehicleList.size()) index = 0;
Vehicle vehicle = vehicleList.get(index);
return vehicle;
}
void incIndex(){
index++;
}
boolean isEmpty() {
return vehicleList.isEmpty();
}
void shuffle(Random random){
Collections.shuffle(vehicleList,random);
}
}
private static Logger logger = LoggerFactory.getLogger(VehicleFleetManagerImpl.class);
@ -73,7 +79,7 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
private Vehicle[] vehicleArr;
private Random random = RandomNumberGeneration.getRandom();
private Random random;
VehicleFleetManagerImpl(Collection<Vehicle> vehicles) {
super();
@ -155,11 +161,6 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
return vehicles;
}
void shuffle(){
for(int i=0;i< vehicleTypes.length;i++){
vehicleTypes[i].shuffle(random);
}
}
@Override
public Vehicle getAvailableVehicle(VehicleTypeKey vehicleTypeIdentifier) {
@ -183,7 +184,6 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
else{
locked[vehicle.getIndex()] = true;
removeVehicle(vehicle);
if(random.nextDouble() < 0.1) shuffle();
}
}
@ -217,6 +217,9 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
unlock(vehicleArr[i]);
}
}
for(int i=0;i<vehicleTypes.length;i++){
vehicleTypes[i].incIndex();
}
}
}