Merge pull request #48 from vivopensource/dev

Adds Flyweight and mediator pattern implementation to Main

Author: viveksacademia4git

.gitignore

@@ -123,3 +123,6 @@ typings/
 package-lock.json
 src/environments/environment-local.ts
 
+ProgramExample.cs
+ProgramExampleTests.cs
+

GofConsoleApp/Examples/Behavioral/MediatorPattern/ChatPerson.cs

@@ -0,0 +1,19 @@
+using Core.Console.Interfaces;
+using GofPatterns.Behavioral.MediatorPattern;
+
+namespace GofConsoleApp.Examples.Behavioral.MediatorPattern;
+
+internal class ChatPerson : MediatorColleague<string, string>
+{
+    private readonly IConsoleLogger logger;
+
+    public ChatPerson(string identifier, Mediator<string, string> mediator, IConsoleLogger logger) :
+        base(identifier, mediator)
+    {
+        this.logger = logger;
+    }
+
+    public override void Process(string input) => Listening(input);
+
+    private void Listening(string input) => logger.Log($"Listening '{Identifier}': {input}");
+}

GofConsoleApp/Examples/Behavioral/MediatorPattern/MediatorPatternExample.cs

@@ -0,0 +1,21 @@
+using GofPatterns.Behavioral.MediatorPattern;
+
+namespace GofConsoleApp.Examples.Behavioral.MediatorPattern;
+
+internal class MediatorPatternExample : AbstractExample
+{
+    protected override bool Execute()
+    {
+        var chatRoom = new Mediator<string, string>();
+        var person1 = new ChatPerson("Person1", chatRoom, Logger);
+        var person2 = new ChatPerson("Person2", chatRoom, Logger);
+
+        chatRoom.Send(person1.Identifier, "Welcome in chatroom!"); // Mediator Calls Colleague (Person1)
+        chatRoom.Send("Person2", "Welcome in chatroom!"); // Mediator Calls Colleague (Person2)
+
+        person1.Send(person2.Identifier, $"Hello from {person1.Identifier}"); // Colleague (Person1) Calls Colleague (Person2)
+        person2.Send("Person1", $"Hello from {person2.Identifier}"); // Colleague (Person2) Calls Colleague (Person1)
+
+        return true;
+    }
+}

GofConsoleApp/Examples/ExecutionHelpers/PatternOptions.cs

@@ -1,9 +1,11 @@
 using GofConsoleApp.Examples.Behavioral.CommandPattern;
 using GofConsoleApp.Examples.Behavioral.CorPattern;
+using GofConsoleApp.Examples.Behavioral.MediatorPattern;
 using GofConsoleApp.Examples.Behavioral.StatePattern;
 using GofConsoleApp.Examples.Behavioral.StrategyPattern;
 using GofConsoleApp.Examples.Structural.AdapterPattern;
 using GofConsoleApp.Examples.Structural.DecoratorPattern;
+using GofConsoleApp.Examples.Structural.FlyweightPattern;
 using GofConsoleApp.Examples.Structural.ProxyPattern;
 
 namespace GofConsoleApp.Examples.ExecutionHelpers;
@@ -17,6 +19,8 @@ internal static class PatternOptions
     internal const string ProxyPatternOptionBoundedInput = "12.2";
     internal const string ProxyPatternOptionBoundedInputOutput = "12.3";
     internal const string AdapterPatternOption = "13";
+    internal const string FlyweightPatternOption = "14";
+    internal const string MediatorPatternOption = "15";
     internal const string ChainOfResponsibilityPatternOption = "21";
     internal const string ChainOfResponsibilityPatternOption2 = "21.2";
     internal const string ChainOfResponsibilityPatternOption3 = "21.3";
@@ -55,6 +59,14 @@ internal static class PatternOptions
             AdapterPatternOption,
             new PatternExampleMap("Adapter Pattern >> Adaptee:Employee , Target:Traveller", new AdapterPatternExample())
         },
+        {
+            FlyweightPatternOption,
+            new PatternExampleMap("Flyweight Pattern >> Drawing shapes", new FlyweightPatternExample())
+        },
+        {
+            MediatorPatternOption,
+            new PatternExampleMap("Flyweight Pattern >> Drawing shapes", new MediatorPatternExample())
+        },
 
         // Behavioral Patterns
         {

GofConsoleApp/Examples/Structural/FlyweightPattern/Components/CoOrdinates.cs

@@ -0,0 +1,10 @@
+namespace GofConsoleApp.Examples.Structural.FlyweightPattern.Components;
+
+internal class CoOrdinates
+{
+    // ReSharper disable UnusedAutoPropertyAccessor.Global
+    public int X1 { get; set; }
+    public int X2 { get; set; }
+    public int Y1 { get; set; }
+    public int Y2 { get; set; }
+}

GofConsoleApp/Examples/Structural/FlyweightPattern/Components/IShape.cs

@@ -0,0 +1,39 @@
+using Core.Console.Interfaces;
+using Core.Extensions;
+using GofPatterns.Structural.FlyweightPattern.Interfaces;
+
+namespace GofConsoleApp.Examples.Structural.FlyweightPattern.Components;
+
+internal interface IShape : IFlyweight<CoOrdinates> { }
+
+internal class CircleShape : IShape
+{
+    private readonly IConsoleLogger logger;
+
+    public CircleShape(IConsoleLogger logger)
+    {
+        this.logger = logger;
+    }
+
+    public void Action(CoOrdinates points)
+    {
+        logger.Log("Drawing circle at co-ordinates:");
+        logger.Log(points.ToYamlString());
+    }
+}
+
+internal class SquareShape : IShape
+{
+    private readonly IConsoleLogger logger;
+
+    public SquareShape(IConsoleLogger logger)
+    {
+        this.logger = logger;
+    }
+
+    public void Action(CoOrdinates points)
+    {
+        logger.Log("Drawing square at co-ordinates:");
+        logger.Log(points.ToYamlString());
+    }
+}

GofConsoleApp/Examples/Structural/FlyweightPattern/Components/ShapeType.cs

@@ -0,0 +1,7 @@
+namespace GofConsoleApp.Examples.Structural.FlyweightPattern.Components;
+
+internal enum ShapeType
+{
+    Circle,
+    Square
+}

GofConsoleApp/Examples/Structural/FlyweightPattern/FlyweightPatternExample.cs

@@ -0,0 +1,37 @@
+using GofConsoleApp.Examples.Structural.FlyweightPattern.Components;
+using GofPatterns.Structural.FlyweightPattern;
+using GofPatterns.Structural.FlyweightPattern.Interfaces;
+
+namespace GofConsoleApp.Examples.Structural.FlyweightPattern;
+
+internal class FlyweightPatternExample : AbstractExample
+{
+    protected override bool Execute()
+    {
+        IShape circle = new CircleShape(Logger);
+        IShape square = new SquareShape(Logger);
+
+        IFlyweightFactory<ShapeType, CoOrdinates> factory = new FlyweightFactory<ShapeType, CoOrdinates>
+        (
+            new FlyweightMapping<ShapeType, CoOrdinates>(ShapeType.Circle, circle),
+            new FlyweightMapping<ShapeType, CoOrdinates>(ShapeType.Square, square)
+        );
+
+        var circleObj1 = factory.GetObject(ShapeType.Circle);
+        circleObj1.Action(new CoOrdinates { X1 = 1, X2 = 2, Y1 = 3, Y2 = 4 });
+
+        var squareObj1 = factory.GetObject(ShapeType.Square);
+        squareObj1.Action(new CoOrdinates { X1 = 5, X2 = 6, Y1 = 7, Y2 = 8 });
+
+        var circleObj2 = factory.GetObject(ShapeType.Circle);
+        circleObj2.Action(new CoOrdinates { X1 = 9, X2 = 10, Y1 = 11, Y2 = 12 });
+
+        var squareObj2 = factory.GetObject(ShapeType.Square);
+        squareObj2.Action(new CoOrdinates { X1 = 5, X2 = 6, Y1 = 7, Y2 = 8 });
+
+        Logger.Log($"Is circleObj1 same as circleObj2? {circleObj1 == circleObj2}");
+        Logger.Log($"Is squareObj1 same as squareObj2? {squareObj1 == squareObj2}");
+
+        return true;
+    }
+}

GofPatterns/Behavioral/MediatorPattern/Interfaces/ICommunicator.cs

@@ -0,0 +1,6 @@
+namespace GofPatterns.Behavioral.MediatorPattern.Interfaces;
+
+public interface ICommunicator<in TColleagueIdentifier, in TInput>
+{
+    void Send(TColleagueIdentifier identifier, TInput input);
+}

GofPatterns/Behavioral/MediatorPattern/Interfaces/IMediatorColleague.cs

@@ -0,0 +1,8 @@
+namespace GofPatterns.Behavioral.MediatorPattern.Interfaces;
+
+public interface IMediatorColleague<TColleagueIdentifier, in TInput> : ICommunicator<TColleagueIdentifier, TInput>
+{
+    void Process(TInput input);
+
+    TColleagueIdentifier Identifier { get; }
+}