static factory

DesignPattern/DesignPattern.sln

@@ -7,6 +7,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Singleton", "Singleton\Sing
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Builder", "Builder\Builder.csproj", "{01181F37-48B4-4C0B-BE41-F8693C8B9E81}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Factory", "Factory\Factory.csproj", "{26FB406E-7EC9-4E6B-B115-68013563C935}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -21,6 +23,10 @@ Global
 		{01181F37-48B4-4C0B-BE41-F8693C8B9E81}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{01181F37-48B4-4C0B-BE41-F8693C8B9E81}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{01181F37-48B4-4C0B-BE41-F8693C8B9E81}.Release|Any CPU.Build.0 = Release|Any CPU
+		{26FB406E-7EC9-4E6B-B115-68013563C935}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{26FB406E-7EC9-4E6B-B115-68013563C935}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{26FB406E-7EC9-4E6B-B115-68013563C935}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{26FB406E-7EC9-4E6B-B115-68013563C935}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

DesignPattern/Factory/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />
+    </startup>
+</configuration>

DesignPattern/Factory/Factory.csproj

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{26FB406E-7EC9-4E6B-B115-68013563C935}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Factory</RootNamespace>
+    <AssemblyName>Factory</AssemblyName>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="StaticFactoryMethod\ILogger.cs" />
+    <Compile Include="StaticFactoryMethod\Logger.cs" />
+    <Compile Include="StaticFactoryMethod\LoggerFactory.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

DesignPattern/Factory/Program.cs

@@ -0,0 +1,25 @@
+using Factory.StaticFactoryMethod;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Factory
+{
+	/*
+	 * 카테고리: 생성패턴
+	 * 개요: 객체를 직접 생성하는 대신 생성하는 기능을 가진 Factory 클래스를 통해 객체를 생성함.
+	 * 
+	 */
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			// static factory method
+			ILogger logger = LoggerFactory.Create(LoggerType.DB);
+
+
+		}
+	}
+}

DesignPattern/Factory/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 어셈블리에 대한 일반 정보는 다음 특성 집합을 통해 
+// 제어됩니다. 어셈블리와 관련된 정보를 수정하려면
+// 이러한 특성 값을 변경하세요.
+[assembly: AssemblyTitle("Factory")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Factory")]
+[assembly: AssemblyCopyright("Copyright ©  2022")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// ComVisible을 false로 설정하면 이 어셈블리의 형식이 COM 구성 요소에 
+// 표시되지 않습니다. COM에서 이 어셈블리의 형식에 액세스하려면
+// 해당 형식에 대해 ComVisible 특성을 true로 설정하세요.
+[assembly: ComVisible(false)]
+
+// 이 프로젝트가 COM에 노출되는 경우 다음 GUID는 typelib의 ID를 나타냅니다.
+[assembly: Guid("26fb406e-7ec9-4e6b-b115-68013563c935")]
+
+// 어셈블리의 버전 정보는 다음 네 가지 값으로 구성됩니다.
+//
+//      주 버전
+//      부 버전 
+//      빌드 번호
+//      수정 버전
+//
+// 모든 값을 지정하거나 아래와 같이 '*'를 사용하여 빌드 번호 및 수정 번호를
+// 기본값으로 할 수 있습니다.
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

DesignPattern/Factory/StaticFactoryMethod/ILogger.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Factory.StaticFactoryMethod
+{
+	interface ILogger
+	{
+
+	}
+}

DesignPattern/Factory/StaticFactoryMethod/Logger.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Factory.StaticFactoryMethod
+{
+	class DbLogger : ILogger { }
+
+	class XmlLogger : ILogger { }
+
+	class JsonLogger : ILogger { }
+}

DesignPattern/Factory/StaticFactoryMethod/LoggerFactory.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Factory.StaticFactoryMethod
+{
+	public enum LoggerType
+	{
+		DB,
+		XML,
+		JSON
+	}
+
+	class LoggerFactory
+	{
+		public static ILogger Create(LoggerType loggerType)
+		{
+			ILogger logger = null;
+			switch (loggerType)
+			{
+				case LoggerType.DB:
+					logger = new DbLogger();
+					break;
+				case LoggerType.XML:
+					logger = new XmlLogger();
+					break;
+				case LoggerType.JSON:
+					logger = new JsonLogger();
+					break;
+				default:
+					throw new InvalidOperationException();
+			}
+
+			return logger;
+		}
+	}
+}