Book Image

.NET Design Patterns

By : Praseed Pai, Shine Xavier
Book Image

.NET Design Patterns

By: Praseed Pai, Shine Xavier

Overview of this book

Knowing about design patterns enables developers to improve their code base, promoting code reuse and making their design more robust. This book focuses on the practical aspects of programming in .NET. You will learn about some of the relevant design patterns (and their application) that are most widely used. We start with classic object-oriented programming (OOP) techniques, evaluate parallel programming and concurrency models, enhance implementations by mixing OOP and functional programming, and finally to the reactive programming model where functional programming and OOP are used in synergy to write better code. Throughout this book, we’ll show you how to deal with architecture/design techniques, GoF patterns, relevant patterns from other catalogs, functional programming, and reactive programming techniques. After reading this book, you will be able to convincingly leverage these design patterns (factory pattern, builder pattern, prototype pattern, adapter pattern, facade pattern, decorator pattern, observer pattern and so on) for your programs. You will also be able to write fluid functional code in .NET that would leverage concurrency and parallelism!
Table of Contents (22 chapters)
.NET Design Patterns
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Chapter 3. A Logging Library

In this chapter, we will try to create a logging library that will enable an application developer to log information to a media (file, network, or database) during program execution. This would be a critical library that the developer would be able to use for audit trail (domain pre-requisite) and code instrumentation (from a debugging and verification stand-point). We will design and implement this library from scratch, and make it available as an API to the end developer for consumption.

During the course of this chapter, as a reader, you will learn to leverage strategy pattern, factory method pattern, template pattern, singleton and prototype patterns to do the following:

  • Writing data to a file stream
  • Creating a simple Data Access Layer (DAL) using ADO.NET
  • Writing data to an SQLite database
  • Writing data to a network stream using the System.Net API
  • Handling concurrency
  • Threads