Basic Online store(java)

For project-2 the job is to build upon and improve the current
RMI based framework/skeleton for the online store from existing project-1. Here, you will be looking at
Application Control Patterns that can be applied with the domain model (e.g Model-View-Control)
architecture that was defined in the previous project-1. For this project-2 the main focus is on the impact that
controllers have on the system specifically looking at the Front Controller pattern and then by applying
the Authorization pattern that should fully implement a complete login and authorization process for
administrators and customers for the online store. For this project-2 consider these to be two
distinct roles – meaning an administrator account cannot act like a customer account – if the same
individual wants to play both roles he/she must have two separate accounts. Also you must demonstrate
at least one application of using Command and Factory/Abstract Factory design patterns and Template
design pattern that will work with the implementation of Front controller and Authorization process.

Requirements Description: The following is a description of the clients request for an Online Store.
The client desires an online store where they can sell goods (and possibly services) to customers
geographically dispersed around the world. Think Amazon but on a smaller scale and budget. Their desire
is to have a system that is constructed in a portable language (Java) and makes use of their existing
network. The system itself should present a view for the customer to interact with as well as a view for
the employees or administrators of the company to interface with. For the customer there is a need for
them to be able to browse available products – this should present the customer with the type, description
and price of the item with the options to add to their shopping cart. If the customer attempts to add a
quantity of the item more than the current supply the system should prevent the customer from adding
these and prompt them with a message on the availability of the item. The customer should be able to
also purchase their items from the shopping cart. The administrators should be able to update an item’s
description within the system, update its price, and update its quantity. The administrator should also be
able to remove items from the system if so desired. Administrators should be able to add other
administrators as well as add/remove customer accounts. A customer should be able to initially register
for their account by themselves. The system should handle any faults or unexpected scenarios gracefully.
It should be reliable and should allow for multiple customer requests during the course of execution.
Specific actions/events that should be handled as part of the system:
• Users/Administrators Login & Registration
• Browsing Items
• Updating Items
• Removing Items
• Adding Items
• Purchasing Items