add prototype pattern

Author: HamidMosalla

CSharpDesignPatterns.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.27004.2005
+VisualStudioVersion = 15.0.27004.2002
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Adapter", "Adapter\Adapter.csproj", "{734C21F0-242C-46AB-970B-71BF2D12DAB0}"
 EndProject
@@ -45,7 +45,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Visitor", "Visitor\Visitor.
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Decorator", "Decorator\Decorator.csproj", "{06E9B0DE-83C3-48F3-B5B1-11DA11AB1090}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Iterator", "Iterator\Iterator.csproj", "{D88BB8E4-F91C-40A1-9A85-DA4CC002F145}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Iterator", "Iterator\Iterator.csproj", "{D88BB8E4-F91C-40A1-9A85-DA4CC002F145}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Prototype", "Prototype\Prototype.csproj", "{FC095363-0A6F-4E09-8342-9474A289C1AA}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -141,6 +143,10 @@ Global
 		{D88BB8E4-F91C-40A1-9A85-DA4CC002F145}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{D88BB8E4-F91C-40A1-9A85-DA4CC002F145}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{D88BB8E4-F91C-40A1-9A85-DA4CC002F145}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FC095363-0A6F-4E09-8342-9474A289C1AA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FC095363-0A6F-4E09-8342-9474A289C1AA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FC095363-0A6F-4E09-8342-9474A289C1AA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FC095363-0A6F-4E09-8342-9474A289C1AA}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Prototype/AbstractPrototype/IPerson.cs

@@ -0,0 +1,7 @@
+namespace Prototype.AbstractPrototype
+{
+    interface IPerson
+    {
+        IPerson Clone();
+    }
+}

Prototype/ConcretePrototype/Dick.cs

@@ -0,0 +1,19 @@
+using Prototype.AbstractPrototype;
+
+namespace Prototype.ConcretePrototype
+{
+    class Dick : IPerson
+    {
+        private string _name = "Dick";
+
+        public IPerson Clone()
+        {
+            return (IPerson)this.MemberwiseClone();
+        }
+
+        public override string ToString()
+        {
+            return _name;
+        }
+    }
+}

Prototype/ConcretePrototype/Harry.cs

@@ -0,0 +1,19 @@
+using Prototype.AbstractPrototype;
+
+namespace Prototype.ConcretePrototype
+{
+    class Harry : IPerson
+    {
+        private string _name = "Harry";
+
+        public IPerson Clone()
+        {
+            return (IPerson)this.MemberwiseClone();
+        }
+
+        public override string ToString()
+        {
+            return _name;
+        }
+    }
+}

Prototype/ConcretePrototype/Tom.cs

@@ -0,0 +1,19 @@
+using Prototype.AbstractPrototype;
+
+namespace Prototype.ConcretePrototype
+{
+    class Tom : IPerson
+    {
+        private string _name = "Tom";
+
+        public IPerson Clone()
+        {
+            return (IPerson)this.MemberwiseClone();
+        }
+
+        public override string ToString()
+        {
+            return _name;
+        }
+    }
+}

Prototype/Program.cs

@@ -0,0 +1,23 @@
+using System;
+using Prototype.AbstractPrototype;
+using Prototype.PrototypeUsage;
+
+namespace Prototype
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            var people = new[] { "tom", "dick", "harry" };
+
+            foreach (var item in people)
+            {
+                IPerson prototype = Factory.GetPrototype(item);
+
+                Console.WriteLine(item);
+            }
+
+            Console.WriteLine(Factory.GetPrototype("tom"));
+        }
+    }
+}

Prototype/Prototype.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>

Prototype/PrototypeUsage/Factory.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using Prototype.AbstractPrototype;
+using Prototype.ConcretePrototype;
+
+namespace Prototype.PrototypeUsage
+{
+    class Factory
+    {
+        private static readonly Dictionary<string, IPerson> Prototypes = new Dictionary<string, IPerson>();
+
+        static Factory()
+        {
+            Prototypes.Add("tom", new Tom());
+            Prototypes.Add("dick", new Dick());
+            Prototypes.Add("harry", new Harry());
+        }
+
+        public static IPerson GetPrototype(string type)
+        {
+            try
+            {
+                return Prototypes.GetValueOrDefault(type).Clone();
+            }
+            catch (NullReferenceException ex)
+            {
+                Console.WriteLine("Prototype with name: " + type + ", doesn't exist");
+                return null;
+            }
+        }
+    }
+}