Design Patterns - Abstract Factory Pattern

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace DesignPattern_AbstractFactoryApp

{

   class Program

   {

      static void Main(string[] args)

      {

         /* ABSTRACT FACTORY PATTERN:

          * The abstract factory pattern provides a way to 

          * encapsulate a group of individual factories 

          * that have a common theme without 

          * specifying their concrete classes.

          * Use of this pattern makes it possible to 

          * interchange concrete implementations 

          * without changing the code 

          * that uses them, even at runtime. 

          * However, employment of this pattern, 

          * as with similar design patterns, 

          * may result in unnecessary complexity 

          * and extra work in the initial writing of code

          */

         var samsungSmartPhone = new GenericFactory<SamsungSmartPhone>();

         SmartPhone smartPhone1 = new SamsungSmartPhone();

         samsungSmartPhone.CreateInstance().TestSmartPhone(smartPhone1);

         var appleSmartPhone = new GenericFactory<AppleSmartPhone>();

         SmartPhone smartPhone2 = new SamsungSmartPhone();

         appleSmartPhone.CreateInstance().TestSmartPhone(smartPhone2);

         Console.ReadKey();

      }

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace DesignPattern_AbstractFactoryApp

{

   public class GenericFactory<T>

      where T : new()

   {

      public T CreateInstance()

      {

         return new T();

      }

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace DesignPattern_AbstractFactoryApp

{

   public abstract class PhoneFactory

   {

      public abstract SmartPhone CreateSmartPhone();

      public abstract DummyPhone CreateDummyPhone();

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace DesignPattern_AbstractFactoryApp

{

   public abstract class SmartPhone

   {

      public abstract void TestSmartPhone(SmartPhone phone);

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace DesignPattern_AbstractFactoryApp

{

   public abstract class DummyPhone

   {

      public abstract void TestDummyPhone(DummyPhone phone);

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace DesignPattern_AbstractFactoryApp

{

   public class AppleFactory : PhoneFactory

   {

      public override SmartPhone CreateSmartPhone()

      {

         return new AppleSmartPhone();

      }

      public override DummyPhone CreateDummyPhone()

      {

         return new AppleDummyPhone();

      }

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace DesignPattern_AbstractFactoryApp

{

   class AppleSmartPhone : SmartPhone

   {

      public override void TestSmartPhone(SmartPhone phone)

      {

         Console.WriteLine("Apple Smart: " + phone.GetType().Name);

      }

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace DesignPattern_AbstractFactoryApp

{

   class AppleDummyPhone : DummyPhone

   {

      public override void TestDummyPhone(DummyPhone phone)

      {

         Console.WriteLine("Apple Dummy: " + phone.GetType().Name);

      }

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace DesignPattern_AbstractFactoryApp

{

   class SamsungFactory:PhoneFactory

   {

      public override SmartPhone CreateSmartPhone()

      {

         return new SamsungSmartPhone();

      }

      public override DummyPhone CreateDummyPhone()

      {

         return new SamsungDummyPhone();

      }

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace DesignPattern_AbstractFactoryApp

{

   class SamsungSmartPhone : SmartPhone

   {

      public override void TestSmartPhone(SmartPhone phone)

      {

         Console.WriteLine("Samsung Smart: " + phone.GetType().Name);

      }

   }

}

**************

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace DesignPattern_AbstractFactoryApp

{

   class SamsungDummyPhone:DummyPhone

   {

      public override void TestDummyPhone(DummyPhone phone)

      {

         Console.WriteLine("Samsung Dummy: " + phone.GetType().Name);

      }

   }

}