[Solved] UTCN Lab3-layers architectural pattern, repository, services and unit tests

The objective of this assignment is to allow students to become familiar with layers architectural pattern, repository, services and unit tests.

2. Application Description

Use JAVA/C# Desktop to design and implement a ticket selling system or the Untold festival. The application should have two types of users (a cashier and an administrator) which must provide a username and a password to use the application.

The administrator user can perform the following operations:

• CRUD(Create, Retrieve, Update and Delete) on cashiers information.
• CRUD on the performances at UNTOLD (Tiesto/ Armin/ Martin Garrix/ ). Keep track of the Genre (Techno, Pop, Rap), Title (One last night in Berlin), Date and time of the show (2021 08 03 1am) and the Maximum Number of tickets per show (20000).
• Administrators can export all the tickets that were sold for a certain show (either in a csv or json file).

The cashier can perform the following operations:

• Sell tickets to a show. A ticket contains the show and can contain one or more places (I can buy a ticket for me and my brother).
• The system should notify the cashier when the number of tickets per show was exceeded.
• A cashier can see all the tickets that were sold for a show, cancel a reservation, or edit it.

3. Application Constraints

• The data will be stored in a relational database.
• Use the Layers architectural pattern to organize your application.
• Passwords are encrypted when stored to the database with a one-way encryption algorithm (base 64).
• Provide unit tests for the number of tickets for show exceeded validation and the encryption algorithm.
• Your application should prove the use of validations (for example if the number of places in the sell ticket screen is bellow 1).
• Use factory method (not factory) for export to csv/xml.

4. Requirements

• Create the analysis and design document (see the template).
• Implement and test the application.