Merge pull request #67 from vivopensource/64-add-bridge-pattern

64 add bridge pattern

Author: viveksacademia4git

GofConsoleApp/Examples/ExecutionHelpers/PatternOptions.cs

@@ -8,6 +8,7 @@
 using GofConsoleApp.Examples.Creational.BuilderPattern;
 using GofConsoleApp.Examples.Creational.FactoryPattern;
 using GofConsoleApp.Examples.Structural.AdapterPattern;
+using GofConsoleApp.Examples.Structural.BridgePattern;
 using GofConsoleApp.Examples.Structural.DecoratorPattern;
 using GofConsoleApp.Examples.Structural.FlyweightPattern;
 using GofConsoleApp.Examples.Structural.ProxyPattern;
@@ -37,6 +38,9 @@ internal static class PatternOptions
     internal const string StatePatternOptionDriveExample = "23.2";
     internal const string StrategyPatternOptionSender = "24";
     internal const string StrategyPatternOptionPayment = "24.2";
+    internal const string BridgePatterOptionSingleImplementations = "25";
+    internal const string BridgePatterOptionMultipleImplementations = "25.2";
+    internal const string BridgePatterOptionMarker = "25.3";
 
     internal const string FactoryOption = "31";
     internal const string AbstractFactoryOption = "32";
@@ -84,7 +88,8 @@ internal static class PatternOptions
         },
         {
             ObserverPatternOptionWithType,
-            new PatternExampleMap("Observer Pattern >> News Publisher with type", new ObserverPatternExampleWithCategory())
+            new PatternExampleMap("Observer Pattern >> News Publisher with type",
+                new ObserverPatternExampleWithCategory())
         },
 
         // Behavioral Patterns
@@ -127,6 +132,20 @@ internal static class PatternOptions
             StrategyPatternOptionPayment,
             new PatternExampleMap("Strategy Pattern >> Payment Example", new StrategyPatternPaymentExample())
         },
+        {
+            BridgePatterOptionSingleImplementations,
+            new PatternExampleMap("Bridge Pattern >> With Single Implementation",
+                new BridgePatternExampleSingleImplementations())
+        },
+        {
+            BridgePatterOptionMultipleImplementations,
+            new PatternExampleMap("Bridge Pattern >> With Multiple Implementations",
+                new BridgePatternExampleMultipleImplementations())
+        },
+        {
+            BridgePatterOptionMarker,
+            new PatternExampleMap("Bridge Pattern >> With Marker", new BridgePatternExampleWithMarker())
+        },
 
         // Creational Patterns
         {

GofConsoleApp/Examples/Structural/AdapterPattern/Adaptee/Employee.cs

@@ -11,7 +11,10 @@ public Employee(string id, string firstName, string lastName, string address)
     }
 
     public string Id { get; }
+
     public string FirstName { get; }
+
     public string LastName { get; }
+
     public string Address { get; }
 }

GofConsoleApp/Examples/Structural/AdapterPattern/Adaptee/IEmployee.cs

@@ -6,7 +6,10 @@
 internal interface IEmployee
 {
     string Id { get; }
+
     string FirstName { get; }
+
     string LastName { get; }
+
     string Address { get; }
 }

GofConsoleApp/Examples/Structural/AdapterPattern/EmployeeTravellerAdapter.cs

@@ -4,9 +4,9 @@
 
 namespace GofConsoleApp.Examples.Structural.AdapterPattern;
 
-internal class EmployeeTravellerAdapter : IAdapter<IEmployee, ITraveller>, ITraveller
+internal class EmployeeTravellerAdapter : IAdapter<Adaptee.IEmployee, ITraveller>, ITraveller
 {
-    public EmployeeTravellerAdapter(IEmployee adaptee)
+    public EmployeeTravellerAdapter(Adaptee.IEmployee adaptee)
     {
         FullName = $"{adaptee.FirstName} {adaptee.LastName}";
         Address = adaptee.Address;

GofConsoleApp/Examples/Structural/BridgePattern/BridgePatternExampleMultipleImplementations.cs

@@ -0,0 +1,40 @@
+using GofConsoleApp.Examples.Structural.BridgePattern.Implementations;
+using GofConsoleApp.Examples.Structural.BridgePattern.Implementations.Multiple;
+
+namespace GofConsoleApp.Examples.Structural.BridgePattern;
+
+internal class BridgePatternExampleMultipleImplementations : BaseExample
+{
+    protected override bool Execute()
+    {
+        var emp1 = new Employee("1", "Jane", "Doe");
+        var emp2 = new Employee("2", "John", "Doe");
+
+        IProcess registerEvent = new Registration(Logger);
+        IProcess taskPresentation = new TaskAssignment("Goals presentation", Logger);
+
+        IManagement annualConference1 = new EventManagement("Annual conference", Logger);
+        annualConference1.Add(registerEvent, taskPresentation);
+        annualConference1.Execute(emp1);
+
+        IManagement annualConference2 = new EventManagement("Annual conference", Logger);
+        annualConference2.Add(registerEvent);
+        annualConference2.Execute(emp2);
+
+        IProcess taskSalesPitch = new TaskAssignment("Sales pitch", Logger);
+        IManagement salesTravel = new TravelManagement("Sales", Logger);
+        salesTravel.Add(taskSalesPitch);
+        salesTravel.Execute(emp1);
+
+        IProcess registerTravel = new Registration(Logger);
+        IProcess taskSystemUpgrade = new TaskAssignment("System upgrade", Logger);
+        IManagement maintenanceTravel = new TravelManagement("Maintenance", Logger);
+        maintenanceTravel.Add(registerTravel, taskSystemUpgrade);
+        maintenanceTravel.Execute(emp2);
+
+        return annualConference1.ImplementationCount == 2 &&
+               annualConference2.ImplementationCount == 1 &&
+               salesTravel.ImplementationCount == 1 &&
+               maintenanceTravel.ImplementationCount == 2;
+    }
+}

GofConsoleApp/Examples/Structural/BridgePattern/BridgePatternExampleSingleImplementations.cs

@@ -0,0 +1,34 @@
+using GofConsoleApp.Examples.Structural.BridgePattern.Implementations;
+using GofConsoleApp.Examples.Structural.BridgePattern.Implementations.Single;
+
+namespace GofConsoleApp.Examples.Structural.BridgePattern;
+
+internal class BridgePatternExampleSingleImplementations : BaseExample
+{
+    protected override bool Execute()
+    {
+        var emp1 = new Employee("1", "Jane", "Doe");
+        var emp2 = new Employee("2", "John", "Doe");
+
+        IProcess registerEvent = new Registration(Logger);
+        IManagement annualConference1 = new EventManagement("Annual conference", Logger);
+        annualConference1.Add(registerEvent);
+        annualConference1.Execute(emp1);
+
+        IManagement annualConference2 = new EventManagement("Annual conference", Logger);
+        annualConference2.Add(registerEvent);
+        annualConference2.Execute(emp2);
+
+        IProcess taskSalesPitch = new TaskAssignment("Sales pitch", Logger);
+        IManagement salesTravel = new TravelManagement("Sales", Logger);
+        salesTravel.Add(taskSalesPitch);
+        salesTravel.Execute(emp1);
+
+        IProcess taskSystemUpgrade = new TaskAssignment("System upgrade", Logger);
+        IManagement maintenanceTravel = new TravelManagement("Maintenance", Logger);
+        maintenanceTravel.Add(taskSystemUpgrade);
+        maintenanceTravel.Execute(emp2);
+
+        return true;
+    }
+}

GofConsoleApp/Examples/Structural/BridgePattern/BridgePatternExampleWithMarker.cs

@@ -0,0 +1,50 @@
+using GofConsoleApp.Examples.Structural.BridgePattern.Marker;
+
+namespace GofConsoleApp.Examples.Structural.BridgePattern;
+
+internal class BridgePatternExampleWithMarker : BaseExample
+{
+    protected override bool Execute()
+    {
+        var emp1 = new Employee("1", "Jane", "Doe");
+        var emp2 = new Employee("2", "John", "Doe");
+
+        IProcess registerEvent = new Registration();
+        IProcess taskPresentation = new TaskAssignment("Goals presentation");
+
+        IManagement annualConference1 =
+            new EventManagement("Annual conference", Logger, registerEvent, taskPresentation);
+        annualConference1.Manage(emp1);
+
+        IManagement annualConference2 = new EventManagement("Annual conference", Logger, registerEvent);
+        annualConference2.Manage(emp2);
+
+        IProcess taskSalesPitch = new TaskAssignment("Sales pitch");
+        IManagement salesTravel = new TravelManagement("Sales", Logger, taskSalesPitch);
+        salesTravel.Manage(emp1);
+
+        IProcess registerTravel = new Registration();
+        IProcess taskSystemUpgrade = new TaskAssignment("System upgrade");
+        IManagement maintenanceTravel = new TravelManagement("Maintenance", Logger, registerTravel, taskSystemUpgrade);
+        maintenanceTravel.Manage(emp2);
+
+        return true;
+    }
+}
+
+// Data
+internal class Employee
+{
+    public Employee(string id, string firstName, string lastName)
+    {
+        Id = id;
+        FirstName = firstName;
+        LastName = lastName;
+    }
+
+    public string Id { get; }
+
+    public string FirstName { get; }
+
+    public string LastName { get; }
+}

GofConsoleApp/Examples/Structural/BridgePattern/Implementations/BridgePatternImplementation.cs

@@ -0,0 +1,41 @@
+using Core.Console.Interfaces;
+using GofPatterns.Structural.BridgePattern.Implementations;
+
+namespace GofConsoleApp.Examples.Structural.BridgePattern.Implementations;
+
+// Implementor for bridge pattern
+internal interface IProcess : IBridgeImplementationImpl<Employee> { }
+
+// Concrete implementor - Register
+internal class Registration : IProcess
+{
+    private readonly IConsoleLogger logger;
+
+    public Registration(IConsoleLogger logger)
+    {
+        this.logger = logger;
+    }
+
+    public void Execute(Employee emp)
+    {
+        logger.Log($" - Registering employee: {emp.Id} [{emp.FirstName} {emp.LastName}].");
+    }
+}
+
+// Concrete implementor - Task assignment
+internal class TaskAssignment : IProcess
+{
+    private readonly string name;
+    private readonly IConsoleLogger logger;
+
+    public TaskAssignment(string name, IConsoleLogger logger)
+    {
+        this.logger = logger;
+        this.name = name;
+    }
+
+    public void Execute(Employee emp)
+    {
+        logger.Log($" - Assigning employee {emp.Id} [{emp.FirstName} {emp.LastName}] with task [{name}].");
+    }
+}

GofConsoleApp/Examples/Structural/BridgePattern/Implementations/Multiple/BridgePatternAbstraction.cs

@@ -0,0 +1,25 @@
+using Core.Console.Interfaces;
+using GofPatterns.Structural.BridgePattern.Implementations;
+
+namespace GofConsoleApp.Examples.Structural.BridgePattern.Implementations.Multiple;
+
+// Abstraction in bridge pattern
+internal interface IManagement : IBridgeAbstractionsImpl<IProcess, Employee> { }
+
+// Refined abstraction - Event management
+internal class EventManagement : BridgeAbstractionsImpl<IProcess, Employee>, IManagement
+{
+    public EventManagement(string purpose, IConsoleLogger logger)
+    {
+        logger.Log($"Managing event for: {purpose}.");
+    }
+}
+
+// Refined abstraction - Travel management
+internal class TravelManagement : BridgeAbstractionsImpl<IProcess, Employee>, IManagement
+{
+    public TravelManagement(string purpose, IConsoleLogger logger)
+    {
+        logger.Log($"Managing travel for: {purpose}.");
+    }
+}

GofConsoleApp/Examples/Structural/BridgePattern/Implementations/Single/BridgePatternAbstraction.cs

@@ -0,0 +1,25 @@
+using Core.Console.Interfaces;
+using GofPatterns.Structural.BridgePattern.Implementations;
+
+namespace GofConsoleApp.Examples.Structural.BridgePattern.Implementations.Single;
+
+// Abstraction in bridge pattern
+internal interface IManagement : IBridgeAbstractionImpl<IProcess, Employee> { }
+
+// Refined abstraction - Event management
+internal class EventManagement : BridgeAbstractionImpl<IProcess, Employee>, IManagement
+{
+    public EventManagement(string purpose, IConsoleLogger logger)
+    {
+        logger.Log($"Managing event for: {purpose}.");
+    }
+}
+
+// Refined abstraction - Travel management
+internal class TravelManagement : BridgeAbstractionImpl<IProcess, Employee>, IManagement
+{
+    public TravelManagement(string purpose, IConsoleLogger logger)
+    {
+        logger.Log($"Managing travel for: {purpose}.");
+    }
+}