Framework Presentation

1
Framework Presentation

• Project Participants
• Gavin Hewitt
• Robert Post
• Frank Zhu
• CSE870 Advanced Software Engineering, Spring 2001
• Instructor Dr. B. Cheng

2
Overview

• Proxy Domain Description
• Framework Overview
• Framework Evolution
• Application Highlights
• Demonstration
• Design Patterns
• Discussion

3
Proxy Domain

• Port Forwarding or Redirection with Event and
  Data Logging
• Single or multiple port forwarding capability
• Various combinations and formatting of event and
  data logging

4
Framework Evolution

• Began with the most robust application specific
  proxy
• Iteration one
• Inheritance
• white-box framework
• Iteration two
• Identified common functionality
• Component library
• gray-box framework
• Iteration three
• Composition
• black-box framework

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6
Application Highlights

• Multi-port binding input redirection proxy
• Support for multiple connections
• Event logging to a user defined file, standard
  error or both
• Data logging to a user defined file or standard
  error
• Binary and Hexadecimal data logging

7
Proxy Demo

• Multiple port redirection proxy
• HTTP and telnet redirection
• Event and data logging
• Redirect 127.0.0.180 to 207.75.242.151234
• Redirect 127.0.0.123 to 35.9.20.2023

8
Design Patterns

• Factory Method
• Framework uses interface objects to refer to
  application specific proxies
• Bridge
• Decoupling application specific code from its
  abstraction so that they can vary independently
• Adapter
• class ProxyFramework uses getParameters() to
  adapt the application specific proxy to class
  PortRedirector

9
Discussion

• Engineering a framework requires a different
  programming methodology
• Not very useful if it is not configurable
• Increased overhead
• Reusability provides ease of use and significant
  time savings for application development