Coding Challenge Read Me - C# Implementation

How to Run / Execute

1. Windows 10 x64

   • Executable file at path:
     • ~\CodingChallenge\ConsoleApp\bin\Release\netcoreapp2.2\win10-x64\ConsoleApp.exe

2. Linx x64

   • Executable file at path:
     • ~\CodingChallenge\ConsoleApp\bin\Release\netcoreapp2.2\linux-x64\ConsoleApp

Example Program Input and Output

Program Architecture

1. ConsoleApp

   • Description: This .NET assembly represents the User Interface. It is also the program executable.

2. CodingChallengeLibrary

   • Description: This .NET assembly represents the Business Logic for the program. It contains the interfaces and implementations that are consumed in the ConsoleApp

3. UnitTests

   • Description: This .NET assembly represents the Unit Tests for the functionality provided in the 'CodingChallengeLibrary' .NET assembly

File Structure by .NET Assembly

1. ConsoleApp

   • Program.cs

     • The entry point to the console application
     • Composes the interfaces and implementations from the 'CodingChallengeLibrary' into an application

   • appsettings.json

     • Settings file where the Employee Hierarchy file name can be specified and the choice to sort the employee hierarchy output can be made

   • Hierarchy.json

     • Data file containing the JSON represenation of the given employee data

   • ConsoleApp.csproj

     • MSBuild file containing build information for the ConsoleApp .NET assembly

2. CodingChallengeLibrary

   • IEmployee.cs

     • The interface describing an Employee

   • Employee.cs

     • A concrete implementation of the IEmployee interface

   • Manager.cs

     • A concrete implementation of the IEmployee interface that facilitates the Decorator and Composite design patterns

   • DataPrinter

     • IDataPrinter.cs
       • The interface describing how to get data for printing to the console
     • HierarchyDataPrinter.cs
       • A concrete implementation of the 'IDataPrinter' interface responbile for formatting a string for the unsorted employee hierarchy
     • SortedHierarchyDataPrinter.cs
       • A concrete implementation of the 'IDataPrinter' interface responbile for formatting a string for the sorted employee hierarchy
     • SalaryRequirementPrinter.cs
       • A concrete implementation of the 'IDataPrinter' interface responbile for formatting a string for the total salary requirement

   • DataReader

     • IDataReader.cs
       • The interface describing how to read data from a data source and return a useful type for the application
     • DataReader.cs
       • A concrete implementation of the 'IDataReader' interface responsible for reading requesting data from an 'IFormatReader' object

   • FormatReader

     • IFormatReader.cs
       • The interface describing how to read data from a data source of a given format and return a useful type for the application
     • JsonFormatDataReader.cs
       • A concrete implementation of the 'IFormatReader' interface responsible for reading data from a JSON file and returning an 'IEmployee' representation of the data
     • MockFormatDataReader.cs
       • A concrete implementation of the 'IFormatReader' interface responsible for providing stub data for the given data in the Coding Challenge Problem Statement

3. UnitTests

   • TopLevelUnitTests.cs

     • Unit tests for testing top level elements of the 'CodingChallnegeLibrary' .NET assembly

   • DataPrinterUnitTests.cs

     • Units tests for testing the 'IDataPrinter' interface and implementations

   • DataReaderUnitTests.cs

     • Units tests for testing the 'IDataReader' interface and implementations

   • FormatReaderUnitTests.cs

     • Units tests for testing the 'IFormatReader' interface and implementations

UML Diagram for Idea of How Types are Composed