.NET Components Example

Two components demonstrating .NET component interaction:

• Dog.dll – Class library implementing IDog interface
• Host.exe – Console app using Dog component

Architecture

graph TB

    subgraph "Host.exe"
        Host
        IFeeder[<i>IFeeder</i>]
        IDogHost[<i>IDogHost</i>]
        Host -.-> IFeeder
        Host -.-> IDogHost
    end

    subgraph "Dog.dll"
        Dog
        IDog[<i>IDog</i>]
        Dog -.-> IDog
    end

    Host --> IDog

    style IFeeder fill:#ffffcc,color:#333,stroke:#333,stroke-dasharray: 5 5
    style IDogHost fill:#ffffcc,color:#333,stroke:#333,stroke-dasharray: 5 5
    style IDog fill:#ffffcc,color:#333,stroke:#333,stroke-dasharray: 5 5
    style Host fill:#5C2D91,color:#fff,stroke:#333,stroke-width:2px
    style Dog fill:#512BD4,color:#fff,stroke:#333,stroke-width:2px

Loading

• Dependency Inversion Principle
• IDog interface – Defines dog behaviors:
  • Core: Bark, Growl, Bite, Run, WagTail
  • Others: DemandFood, LiftLeg
• Dog class – Implements dog behaviors
• IFeeder – Feeding responsibilities: GiveFood, GiveDrink, Call
• IDogHost – Care responsibilities: LeadAnimal, CareForAnimalFur
• Host class implements both interfaces
• Program – Main entry point with demonstration

Build & Run

# Build the solution
dotnet build

# Run the host application
dotnet run --project Host

Attribution

Based on tutorial by Professor V. Giedrimas, Vilnius University (Šiauliai Academy). Extended by:

• Slightly enhanced interface design
• Modern C# language features

Verifying Releases

All releases are signed with GPG (GNU Privacy Guard) key:

• Fingerprint: B1FD 20DB 15EE D25F D6DE 7C93 C7CE 19DC DFD0 11BD
• Public key: PUBLIC_KEY.asc or Gist

To verify:

# Import key
curl -L https://gist.github.com/rsqb/1bd8693e60027034031efade3c6ac95d/raw | gpg --import

# Verify signature
gpg --verify <release>.asc <release>