Work

README.md

@@ -1,2 +1,8 @@
-# droolscourse
-blabla
+# Drools on boarding course
+
+This is the source code that goes with the git book [Drools On Boarding](https://nheron.gitbooks.io/droolsonboarding/content/) .
+The Account project is for the Drools tutorial and the cost-calculation project is the exercice part.
+
+
+
+[Exercice project ](cost-calculation/README.md)

cost-calculation/README.md

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+# Cost Calculation project
+
+
+
+
+# Requirements
+We are working for a retail company that buys its products from different places in Asian mostly. each shop can go to the buying web site and say what he wants and put an order. 
+Up to now, the transport cost was a estimated but not calculated on the content of the order. 
+The purpose is to implement such a calculator.
+
+## Data model
+
+A customer puts an order that contains products. An order contains a lost of products with a number.
+A product has 
+* a name
+* a height, 
+* a width, 
+* a depth, 
+* transport type : if the product can be put with other products in a pallet, individual(alone) or bulk  (like sand for example)
+* a weight
+
+A product can be put on a pallet. a pallet 120 cm width and and 80 cm depth. It can be maximum 2 meters height and the weight should not exceed 1400 kg. We should use a simple algorithm to fill each pallet. It will be not optimized but we should used that as a margin of the costs.  a product that is bigger than 60 cm in width or depth or higher than 1m should be put alone in a pallet.
+
+All products start from the same city and go to the same city in an order. A trip is composed f steps. Each step can be done by train, boat or truck.
+
+
+Here is the list of products in our test order.
+
+| Product | Transport type | Number | Height | Weight | depth | weight |
+| -- | -- | -- | -- | -- | -- | -- |
+| drill | pallet | 1000 | 20cm | 40cm | 30cm | 2 kg |
+| screwdriver | pallet | 30000 | 3cm | 2cm | 20cm | 0,2 kg |
+| Sand | bulk |  | |  |  | 35 Tons |
+| Gravel | bulk |  |  |  |  | 14 Tons |
+| furniture | individual |23 |  |  |  | 500 kg |
+
+And the trip is a follows : 
+
+| # | start city | arrival city | distance (km) | travel mode |
+| -- | -- | -- | -- | -- |
+| 1 | Shangai | Rotterdam | 22000 | Boat|
+| 2 | Rotterdam | Tournai | 300 | Train |
+| 3 | Tournai | Lille | 20 | Truck |
+
+
+there are 3 types of costs : 
+- transport costs per Pallet
+
+| Transport| Cost 
+| -- | -- | 
+| boat | 0,2€/km |
+| Train | 0,5€/km |
+| Truck | 1€/km |
+
+- Taxes
+
+| City| Cost 
+| -- | -- | 
+| Shangai | 0,02€/kg |
+| Rotterdam | 0,05€/kg and 1€ per handling person |
+| Tournai | 2€ per handling person |
+| Lille | 30€ per handling person |
+
+
+- handling
+
+| City| Cost 
+| -- | -- | 
+| Shangai | 20€/hour and a person can handle 13 pallets/hour |
+| Rotterdam | 45€/hour and a person can handle 60 pallets/hour |
+| Tournai | 67€/hour and can handle 40 pallets/hour |
+| Lille | 79€/hour and can handle 30 pallets/hour |
+
+The handling should not take more than 12 hours.
+
+[Data Model ](src/main/java/cost/README.md)
+
+[The rules we implemented ](src/main/resources/rules/README.md)

cost-calculation/src/main/java/cost/CostItem.java

@@ -1,6 +0,0 @@
-package cost;
-
-public class CostItem {
-
-
-}

cost-calculation/src/main/java/cost/README.md

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+# Cost Calculation Data model
+
+The first thing to do when using drools is to build the java class model on which the rules will apply.
+
+![](diagram.jpg)
+
+* CostCalculationRequest
+This is the top entity that will contain the trip description as well as the order the customer did and witch trip has to be calculated.
+And in the same object, we shall put the final result in a list of costs and the complete list of pallets where we will put the products.
+* Trip
+Contains the list of steps of the trip.
+* Step
+A step happens between two cities and a unique transport type : train, truck or boat
+* City
+A city which can ne a harbour, a train station or a a final destination by truck.
+* Order
+The detail of the customer order.
+* OrderLine
+It contains the product as well as the number of items.
+* LeftToDistribute
+As we have to distribute all products in the pallets, we shall store here during the distribution what is left to be distributed.
+* Product
+The product that is bought and has to be in the transport.
+* Pallet
+Here is a picture of a pallet.
+
+![](pallet.jpg)
+
+
+* HandlingCostElement, TaxesCostElement and TransportCostElement
+they represent the different costs that we have to calculate.
+
+* CalculatedElement
+We shall use this class to store intermediate values.
+
+
+
+
+
+
+
+

cost-calculation/src/main/java/cost/TaxesCostElement.java

@@ -4,7 +4,7 @@ public class TaxesCostElement implements CostElement {
     private double amount;
     private City city;
 
-    private Pallet pallet;
+
 
     public double getAmount() {
         return amount;
@@ -22,18 +22,10 @@ public class TaxesCostElement implements CostElement {
         this.city = city;
     }
 
-    public Pallet getPallet() {
-        return pallet;
-    }
-
-    public void setPallet(Pallet pallet) {
-        this.pallet = pallet;
-    }
 
     @Override
     public String toString() {
-        return "TaxesCostElement [amount=" + amount + ", city=" + city + ", pallet="
-                + pallet + "]";
+        return "TaxesCostElement [amount=" + amount + ", city=" + city + "]";
     }
 
 }

cost-calculation/src/main/java/cost/TotalAmount.java

@@ -1,5 +0,0 @@
-package cost;
-
-public class TotalAmount {
-
-}

cost-calculation/src/main/resources/rules/README.md

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+# Rules
+
+We shall use a Ruleflow and implement the rules in 3 steps : 
+* Distribute the products in the pallet
+* Calculate the costs
+* Calculate and Display the results
+
+This is done in the P1.bpmn2. 
+
+![](ruleflow.png)
+
+## Distribute the products in the pallet
+
+
+## Calculate the costs
+
+
+## Sum the results
+