Description
In this assignment you will build upon the program worked on in the previous assignment. You are free to
build upon your solution or start from the skeleton code provided.
Task 1: Linked List Template Class
Your first task is to replace the various Linked List collection classes in the code with a single
LinkedList Template class that will be able to store any objects. As was done in class and your
tutorials, you will create a LinkedList.h file that contains the class definition as well as the
function definitions. Once implemented this template will be used in place of the CustomerList
and VehicleList class (storing Customer and Vehicle pointers, respectively). Your LinkedList
template must be consistent with the previously used classes (ie. must implement the same
member functions and override the same operators). There is one function in the CustomerList
class that we will not provide in our generic template, the get function. The only place this
function is called from is the Shop class. Modify the getCustomer function in the Shop class
that calls this get function so the functionality is preserved (ie. use the provided functions and
operators provided by the LinkedList template to provide this functionality).
You will also store pointers to the Mechanic objects in the Shop class in a LinkedList. In doing
this you will need to look at the following:
● Update how the += operator works for Mechanic pointers in the Shop class
● Get rid of any data members or member functions that are no longer needed in the
Shop class
● Update how certain member functions work in light of this change in the Shop class
● Update how mechanics are printed in the controller and view classes
● Overload the < and > operators in the Mechanic class to compare objects based on
salary. This is needed since the LinkedList inserts and stores its objects in sorted order.
Task 2: Vehicle Class Hierarchy
You will now introduce a second inheritance hierarchy into your program. The base of this
hierarchy will be the Vehicle class. You are free to change the access specifiers in this class as
you see fit. You are to add a pure virtual to this class called toString that will return a string and
update the overloaded output stream insertion operator to call to call the toString function as
opposed to accessing the member variables directly. This will allow us to control how all derived
classes in this hierarchy will be printed to screen (ie. allowing us to include class specific
information). See the sample output for an example of this in use.
You will now introduce three derived classes to this hierarchy. The classes and the minimum of
what you need to include in them are described below.
● The Car class will not introduce any further data members to those supplied by the
Vehicle class. You will need to:
○ Include an appropriate constructor
○ Implement the toString function appropriately and make any other changes so
that Car objects can easily be printed to screen.
● The Truck class will include everything described for the Car class as well as:
○ A new integer data member to keep track of the number of axles the truck has
● The Motorcycle class will include everything described for the Car class as well as:
○ A new boolean data member to indicate if the motorcycle has a sidecar or not
Task 3: VehicleFactory class
You will now create a VehicleFactory class to implement the factory design pattern within your
program. This class will offer three public functions, all called create which all return a Vehicle
pointer. They will be differentiated by their parameter list: each version is responsible for
creating a specific object in the Vehicle hierarchy and the parameters it takes are those needed
to create the specific object in question. Once implemented, the header file for this class should
be the only file in your entire program (other than the Car.cc, Truck.cc and Motorcycle.cc source
code files) that includes the Car, Truck and Motorcycle headers . The rest of your program will
interact with these objects using Vehicle handles.
Update your ShopController class to include a VehicleFactory data member. This instance of
your factory will be responsible for creating every instance of any object in the Vehicle hierarchy
throughout your program. Update your initShop function in the ShopController class to use
your factory to create vehicles of all types to your customer database.
Task 4: Update UI
The last task is to update the user interface (and the associated view and controller classes) to
take advantage of the new functionality. Specifically, when the user asks to add a vehicle and
after prompting the user for the id, you must also prompt the user for which type of vehicle they
want to add. Based on that, the appropriate information is asked for, the appropriate object is
created (using your new VehicleFactory) and is added to that customer. As always, you must
maintain the good design principles of this program, including the separation of the view,
controller and model objects. See the sample output to see how this should work.
Constraints
● your program must not have any memory leaks (don’t worry if valgrind reports that some memory
on the heap is “still reachable”)
● do not use any global variables
● your program must reuse functions everywhere possible
● your program must be thoroughly commented
● your program must compile and run in COMP2404-2406- W18 Virtual Machine
Submission
You will submit in cuLearn, before the due date and time, one tar file that includes all the following:
● all source code, including the code provided
● a readme file that includes:
○ a preamble (program author, purpose, list of source/header/data files)
○ the exact compilation command
○ launching and operating instructions
Grading [out of 30 marks]
Marking components:
● 11 marks: linked list template
○ 5 marks: overall structure
○ 1 mark: each for storing Mechanic, Vehicle and Customer objects using template
○ 1 mark: updated += operator for Mechanic objects in Shop class
○ 1 mark: for other appropriate updates to Shop class
○ 1 mark: for overloaded < and > in Mechanic class based on salary
● 10 marks: Vehicle class hierarchy
○ 1 mark: for pure virtual toString function
○ 3 marks: for each Car, Truck and Motorcycle class structure
● 5 marks: VehicleFactory class
○ 3 marks: correctly implements each version of the create function
○ 2 marks: proper use in the ShopController class
● 4 marks: updates to UI
Notes:
In order to get credit for a marking component, the program must prove that the marking
component executes successfully. This is usually accomplished by printing out correct data.
Deductions
● Packaging errors:
○ 10% for missing readme
● Memory leaks:
○ 10% for any memory leaks in your program
● Major programming and design errors:
○ 50% of a marking component that uses global variables
○ 50% of a marking component that consistently fails to use correct design principles, including
separate functions
○ 50% of a marking component where unauthorized changes have been made to provided
code or prototypes
● Minor programming errors:
○ 10% for consistently missing comments or other bad style
○ 10% for consistently failing to perform basic error checking
● Execution errors:
○ 100% of a marking component that can’t be tested because the code doesn’t compile or
execute in the VM
○ 100% of a marking component that can’t be tested because the feature isn’t used in the code
○ 100% of a marking component that can’t be proven to run successfully because data is not
printed out
Sample Console Output
User input highlighted.
> make clean
rm -f main.o ShopController.o View.o VehicleFactory.o Shop.o Customer.o Vehicle.o
Car.o Truck.o Motorcycle.o Mechanic.o Person.o mechanicshop
> make
g++ -c main.cc
g++ -c ShopController.cc
g++ -c View.cc
g++ -c VehicleFactory.cc
g++ -c Shop.cc
g++ -c Customer.cc
g++ -c Vehicle.cc
g++ -c Car.cc
g++ -c Truck.cc
g++ -c Motorcycle.cc
g++ -c Mechanic.cc
g++ -c Person.cc
g++ -o mechanicshop main.o ShopController.o View.o VehicleFactory.o Shop.o Customer.o
Vehicle.o Car.o Truck.o Motorcycle.o Mechanic.o Person.o
> ./mechanicshop
**** Toby’s Auto Mechanic Information Management System ****
MAIN MENU
1. Print Customer Database
2. Add Customer
3. Add Vehicle
4. Remove Customer
5. Remove Vehicle
6. Print Mechanics
0. Exit
Enter your selection: 1
CUSTOMERS:
Customer ID 1001
Name: Abigail Atwood
Address: 43 Carling Dr.
Phone Number: (613)345-6743
1 vehicle(s):
CAR: Green 2016 Subaru Forester (40000km)
Customer ID 1002
Name: Brook Banding
Address: 1 Bayshore Dr.
Phone Number: (613)123-7456
2 vehicle(s):
CAR: White 1972 Volkswagon Beetle (5000km)
CAR: White 2018 Honda Accord (5000km)
Customer ID 1004
Name: Eve Engram
Address: 75 Bronson Ave.
Phone Number: (613)456-2345
5 vehicle(s):
CAR: Green 2013 Toyota Corolla (80000km)
MOTORCYCLE: Grey 2014 Kawasaki Z650 (5000km), doesn’t have sidecar
CAR: Gold 2015 Toyota Rav4 (20000km)
CAR: Blue 2017 Toyota Prius (10000km)
MOTORCYCLE: Blue 2018 Kawasaki Ninja (100km), doesn’t have sidecar
Customer ID 1003
Name: Ethan Esser
Address: 245 Rideau St.
Phone Number: (613)234-9677
2 vehicle(s):
TRUCK: Red 2000 Mack Granite (500000km), 8 axles
CAR: Black 2010 Toyota Camery (50000km)
Customer ID 1000
Name: Maurice Mooney
Address: 2600 Colonel By Dr.
Phone Number: (613)728-9568
2 vehicle(s):
CAR: Red 2007 Ford Fiesta (100000km)
TRUCK: Black 2017 Ford F150 (1000km), 3 axles
Customer ID 1005
Name: Victor Vanvalkenburg
Address: 425 O’Connor St.
Phone Number: (613)432-7622
5 vehicle(s):
MOTORCYCLE: Black 2006 Harley Touring (8000km), has sidecar
CAR: Purple 2012 GM Envoy (60000km)
CAR: Orange 2012 GM Trailblazer (90000km)
CAR: Red 2015 GM Malibu (20000km)
CAR: Black 2016 GM Escalade (40000km)
Press enter to continue…
**** Toby’s Auto Mechanic Information Management System ****
MAIN MENU
1. Print Customer Database
2. Add Customer
3. Add Vehicle
4. Remove Customer
5. Remove Vehicle
6. Print Mechanics
0. Exit
Enter your selection: 3
Customer ID: 1000
Vehicle Type (1: Car, 2: Truck, 3: Motorcycle): 2
Make: Toyota
Model: Tacoma
Colour: Blue
Year: 2018
Mileage: 1000
Number of axles: 2
Press enter to continue…
**** Toby’s Auto Mechanic Information Management System ****
MAIN MENU
1. Print Customer Database
2. Add Customer
3. Add Vehicle
4. Remove Customer
5. Remove Vehicle
6. Print Mechanics
0. Exit
Enter your selection: 3
Customer ID: 1002
Vehicle Type (1: Car, 2: Truck, 3: Motorcycle): 3
Make: Suzuki
Model: Cruiser
Colour: Black
Year: 2000
Mileage: 50000
Has sidecar (y/n): y
Press enter to continue…
**** Toby’s Auto Mechanic Information Management System ****
MAIN MENU
1. Print Customer Database
2. Add Customer
3. Add Vehicle
4. Remove Customer
5. Remove Vehicle
6. Print Mechanics
0. Exit
Enter your selection: 1
CUSTOMERS:
Customer ID 1001
Name: Abigail Atwood
Address: 43 Carling Dr.
Phone Number: (613)345-6743
1 vehicle(s):
CAR: Green 2016 Subaru Forester (40000km)
Customer ID 1002
Name: Brook Banding
Address: 1 Bayshore Dr.
Phone Number: (613)123-7456
3 vehicle(s):
CAR: White 1972 Volkswagon Beetle (5000km)
MOTORCYCLE: Black 2000 Suzuki Cruiser (50000km), has sidecar
CAR: White 2018 Honda Accord (5000km)
Customer ID 1004
Name: Eve Engram
Address: 75 Bronson Ave.
Phone Number: (613)456-2345
5 vehicle(s):
CAR: Green 2013 Toyota Corolla (80000km)
MOTORCYCLE: Grey 2014 Kawasaki Z650 (5000km), doesn’t have sidecar
CAR: Gold 2015 Toyota Rav4 (20000km)
CAR: Blue 2017 Toyota Prius (10000km)
MOTORCYCLE: Blue 2018 Kawasaki Ninja (100km), doesn’t have sidecar
Customer ID 1003
Name: Ethan Esser
Address: 245 Rideau St.
Phone Number: (613)234-9677
2 vehicle(s):
TRUCK: Red 2000 Mack Granite (500000km), 8 axles
CAR: Black 2010 Toyota Camery (50000km)
Customer ID 1000
Name: Maurice Mooney
Address: 2600 Colonel By Dr.
Phone Number: (613)728-9568
3 vehicle(s):
CAR: Red 2007 Ford Fiesta (100000km)
TRUCK: Black 2017 Ford F150 (1000km), 3 axles
TRUCK: Blue 2018 Toyota Tacoma (1000km), 2 axles
Customer ID 1005
Name: Victor Vanvalkenburg
Address: 425 O’Connor St.
Phone Number: (613)432-7622
5 vehicle(s):
MOTORCYCLE: Black 2006 Harley Touring (8000km), has sidecar
CAR: Purple 2012 GM Envoy (60000km)
CAR: Orange 2012 GM Trailblazer (90000km)
CAR: Red 2015 GM Malibu (20000km)
CAR: Black 2016 GM Escalade (40000km)
Press enter to continue…
**** Toby’s Auto Mechanic Information Management System ****
MAIN MENU
1. Print Customer Database
2. Add Customer
3. Add Vehicle
4. Remove Customer
5. Remove Vehicle
6. Print Mechanics
0. Exit
Enter your selection: 6
MECHANICS:
Employee ID 5001
Name: Steve Bane
Address: 77 Oak St.
Phone Number: (613)223-4653
Salary: 60000
Employee ID 5002
Name: Jane Smyth
Address: 10 5th Ave.
Phone Number: (613)762-4678
Salary: 71000
Employee ID 5000
Name: Bill Taylor
Address: 54 Park Place
Phone Number: (613)826-9847
Salary: 75000
Press enter to continue…
**** Toby’s Auto Mechanic Information Management System ****
MAIN MENU
1. Print Customer Database
2. Add Customer
3. Add Vehicle
4. Remove Customer
5. Remove Vehicle
6. Print Mechanics
0. Exit
Enter your selection: 0
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