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Nicolas Héron
parent
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1 changed files with 278 additions and 2 deletions
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@ -184,9 +184,285 @@ end
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```
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```
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## Calculate the costs
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## Calculate the costs
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Now we take each cost and add a CostElement depending on the number of pallets we created in previous step
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### Transport cost
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For each step type we calculate the cost
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```
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rule "boatTransportCost"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$s : Step(transportType ==Step.Ship_TransportType)
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then
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TransportCostElement t = new TransportCostElement();
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t.setStep($s);
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t.setAmount($c.getPallets().size()*$s.getDistance()*0.2);
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$c.getCostElements().add(t);
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insert(t);
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end
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rule "trainTransportCost"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$s : Step(transportType ==Step.train_TransportType)
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then
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TransportCostElement t = new TransportCostElement();
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t.setStep($s);
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t.setAmount($c.getPallets().size()*$s.getDistance()*0.5);
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$c.getCostElements().add(t);
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insert(t);
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end
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rule "truckTransportCost"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$s : Step(transportType ==Step.truck_TransportType)
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then
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TransportCostElement t = new TransportCostElement();
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t.setStep($s);
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t.setAmount($c.getPallets().size()*$s.getDistance()*1.0);
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$c.getCostElements().add(t);
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insert(t);
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end
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```
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### Taxes Cost
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For each City we go through, we calculate the cost (Shangai and Rotterdam)
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As sometimes it depends on the weight, we have to sum the total amount of weigh on all pallets.
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Here we chose not to put all calculation in the drools session, so we do the sum in the them part of the rules.
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Se here how we obtain the list of Pallet we want in an ArrayList. In the then part we then iterate on the founded pallet and in the pallet we go through all the products to sum the weight.
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```
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rule "ShangaiTaxesCost_bulk"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$ci : City(name==City.ShangaiCityName)
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$listPallet : ArrayList( )
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from collect( Pallet(palletType == Product.transportType_bulkt) )
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then
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TaxesCostElement t = new TaxesCostElement();
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t.setCity($ci);
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double totalWeight=0;
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for (Object oo : $listPallet){
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Pallet pp = (Pallet)oo;
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for (Double d : pp.getContentWeight().values()){
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totalWeight=totalWeight+d;
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}
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}
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t.setAmount(totalWeight*0.02);
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$c.getCostElements().add(t);
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insert(t);
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end
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rule "ShangaiTaxesCost_notbulk"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$ci : City(name==City.ShangaiCityName)
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$listPallet : ArrayList( )
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from collect( Pallet(palletType != Product.transportType_bulkt) )
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then
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TaxesCostElement t = new TaxesCostElement();
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t.setCity($ci);
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double totalWeight=0;
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for (Object oo : $listPallet){
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Pallet pp = (Pallet)oo;
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for (Product p : pp.getContentQuantity().keySet()){
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totalWeight=totalWeight+p.getWeight()* pp.getContentQuantity().get(p);
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}
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}
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t.setAmount(totalWeight*0.05);
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$c.getCostElements().add(t);
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insert(t);
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end
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rule "RotterdamTaxesCost_bulk_weight"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$ci : City(name==City.RotterdamCityName)
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$listPallet : ArrayList( )
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from collect( Pallet(palletType == Product.transportType_bulkt) )
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then
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TaxesCostElement t = new TaxesCostElement();
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t.setCity($ci);
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double totalWeight=0;
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for (Object oo : $listPallet){
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Pallet pp = (Pallet)oo;
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for (Double d : pp.getContentWeight().values()){
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totalWeight=totalWeight+d;
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}
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}
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t.setAmount(totalWeight*0.05);
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$c.getCostElements().add(t);
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insert(t);
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end
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rule "RotterdamTaxesCost_notbulk_weight"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$ci : City(name==City.RotterdamCityName)
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$listPallet : ArrayList( )
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from collect( Pallet(palletType != Product.transportType_bulkt) )
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then
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TaxesCostElement t = new TaxesCostElement();
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t.setCity($ci);
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double totalWeight=0;
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for (Object oo : $listPallet){
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Pallet pp = (Pallet)oo;
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for (Product p : pp.getContentQuantity().keySet()){
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totalWeight=totalWeight+p.getWeight()* pp.getContentQuantity().get(p);
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}
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}
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t.setAmount(totalWeight*0.05);
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$c.getCostElements().add(t);
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insert(t);
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end
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```
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### Handling Cost and taxes on the Handling
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Here we admit that it takes 12 hours to do the handling.
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Based on that we then see how many pallets we have to handle per hour and then depending on the what a person can handle per hour, we calculate the number of persons we need.
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```
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rule "ShangaiHandlingCost"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$ci : City(name==City.ShangaiCityName)
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then
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int n = $c.getPallets().size();
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int nbrePalletPerHour = Math.round( n/12)+1;
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int nbrePerson = Math.round( nbrePalletPerHour/13)+1;
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HandlingCostElement t = new HandlingCostElement();
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t.setCity($ci);
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t.setAmount(nbrePerson*12*20.0);
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$c.getCostElements().add(t);
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insert(t);
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end
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rule "RotterdamHandlingCostAndPersonTaxes"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$ci : City(name==City.RotterdamCityName)
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then
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int n = $c.getPallets().size();
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int nbrePalletPerHour = Math.round( n/12)+1;
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int nbrePerson = Math.round( nbrePalletPerHour/60)+1;
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HandlingCostElement t = new HandlingCostElement();
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t.setCity($ci);
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t.setAmount(nbrePerson*12*45.0);
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$c.getCostElements().add(t);
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insert(t);
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TaxesCostElement t1 = new TaxesCostElement();
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t1.setAmount(nbrePerson*1.0);
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$c.getCostElements().add(t1);
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insert(t1);
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end
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rule "TournaiHandlingCostAndPersonTaxes"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$ci : City(name==City.TournaiCityName)
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then
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int n = $c.getPallets().size();
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int nbrePalletPerHour = Math.round( n/12)+1;
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int nbrePerson = Math.round( nbrePalletPerHour/40)+1;
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HandlingCostElement t = new HandlingCostElement();
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t.setCity($ci);
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t.setAmount(nbrePerson*12*67.0);
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$c.getCostElements().add(t);
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insert(t);
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TaxesCostElement t1 = new TaxesCostElement();
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t1.setAmount(nbrePerson*2.0);
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$c.getCostElements().add(t1);
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insert(t1);
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end
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rule "LilleHandlingCostAndPersonTaxes"
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ruleflow-group "calculate"
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when
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$c : CostCalculationRequest( )
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$ci : City(name==City.LilleCityName)
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then
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int n = $c.getPallets().size();
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int nbrePalletPerHour = Math.round( n/12)+1;
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int nbrePerson = Math.round( nbrePalletPerHour/30)+1;
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HandlingCostElement t = new HandlingCostElement();
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t.setCity($ci);
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t.setAmount(nbrePerson*12*79.0);
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$c.getCostElements().add(t);
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insert(t);
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TaxesCostElement t1 = new TaxesCostElement();
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t1.setAmount(nbrePerson*30.0);
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$c.getCostElements().add(t1);
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insert(t1);
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end
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```
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TODO
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## Sum the results
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## Sum the results
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We use the accumulate function to show the results. We just show the result in the console. On a real project, the results could habe stored in a data structure.
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```
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rule "CalculateTotal"
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ruleflow-group "total"
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when
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$c : CostCalculationRequest( )
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$totalBoatTransport : Number( doubleValue > 100 )
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from accumulate( $s : Step(transportType ==Step.Ship_TransportType) &&
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TransportCostElement(step ==$s, $value : amount ),
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init( double total = 0; ),
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action( total += $value; ),
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reverse( total -= $value; ),
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result( total ) )
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$totalTrainTransport : Number( doubleValue > 100 )
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from accumulate( $s : Step(transportType ==Step.train_TransportType) &&
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TransportCostElement(step ==$s, $value : amount ),
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init( double total = 0; ),
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action( total += $value; ),
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reverse( total -= $value; ),
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result( total ) )
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$totalTruckTransport : Number( doubleValue > 100 )
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from accumulate( $s : Step(transportType ==Step.truck_TransportType) &&
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TransportCostElement(step ==$s, $value : amount ),
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init( double total = 0; ),
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action( total += $value; ),
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reverse( total -= $value; ),
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result( total ) )
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$totalTransport : Number( doubleValue > 100 )
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from accumulate( TransportCostElement( $value : amount ),
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init( double total = 0; ),
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action( total += $value; ),
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reverse( total -= $value; ),
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result( total ) )
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$totalTaxes : Number( doubleValue > 100 )
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from accumulate( TaxesCostElement( $value : amount ),
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init( double total = 0; ),
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action( total += $value; ),
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reverse( total -= $value; ),
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result( total ) )
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$totalHandling : Number( doubleValue > 100 )
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from accumulate( HandlingCostElement( $value : amount ),
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init( double total = 0; ),
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action( total += $value; ),
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reverse( total -= $value; ),
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result( total ) )
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then
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System.out.println("NumberOfPallets="+$c.getPallets().size());
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System.out.println("TotalShipTransport="+$totalBoatTransport);
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System.out.println("TotalTrainTransport="+$totalTrainTransport);
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System.out.println("TotalTruckTransport="+$totalTruckTransport);
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System.out.println("TotalTransport="+$totalTransport);
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System.out.println("TotalTaxes="+$totalTaxes);
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System.out.println("TotalHandling="+$totalHandling);
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end;
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```
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TODO
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