Software Systems Architectures

CS 586 Individual Project (Spring, 2017)

Design pattern requirement indications

1. State Pattern (De-centralized)
   • Implemented in package "Model/EFSM" of the GasPumpSystem Module
   • StateMachine is the "VM" class
   • State is the abstract State superclass
   • InitState, S0, S1, S2, S3, S4, S5, S6 are the State subclasses
   • State classes are responsible for performing both actions and state transitions
2. Strategy Pattern
   • Implemented in package "ActionStrategy" of the GasPumpSystem Module
   • OutputProcessor is the client class that needs to be initialized with proper action strategies
   • The "ActionStrategy" package contains 14 sub-packages each with 3 classes
   • One class is the abstract strategy that groups different implementations of a specific strategy
   • The other 2 classes are GasPump-1 and GasPump-2 specific implementation for the meta-actions of the model according to specifications for their respective GasPump requirements.
3. Abstract Factory Pattern
   • Implemented in package "AbstractFactory" of the GasPumpSystem Module
   • AbstractFactory is the abstract superclass
   • ConcreteFactory1 is the factory that returns the necessary driver objects for GasPump1
   • ConcreteFactory2 is the factory that returns the necessary driver objects for GasPump2
   • The "GasPump" package contains the abstract class GasPump which uses the correct poly-morphed AbstractFactory class to initialize the proper drivers for GasPump1 and GasPump2

How to run

To run the executable, from the root directory of the project:

$ java -jar GasPumpSystem/target/GasPumpSystem-1.2.jar

To compile the source code using Maven, then run the resulting executable:

$ cd GasPumpSystem/
$ mvn
$ java -jar target/GasPumpSystem-1.2.jar