static void Main(string[] args)
{
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("DIConfig.json");
Configuration = builder.Build();
//TODO: Comment later for other examples
IMessageWriter writer = new ConsoleMessageWriter();
var salutation = new Salutation(writer);
salutation.Salute();
//TODO: Remove to use late binding
//var typeName = Configuration["MessageWriter"];
//var type = Type.GetType(typeName, true);
//IMessageWriter writer = (IMessageWriter)Activator.CreateInstance(type);
//var salutation = new Salutation(writer);
//salutation.Salute();
//TODO: Remove to Use Decorator Pattern
//IMessageWriter writer = new SecureMessageWriter(new ConsoleMessageWriter());
//var salutation = new Salutation(writer);
//salutation.Salute();
}
public static void Main()
{
IMessageWriter writer = new ConsoleMessageWriter();
var salution = new Salutation(writer);
salution.Exclaim();
}
static void Main(string[] args)
{
// 原本只要這樣一行
System.Console.WriteLine("Hello World!");
// 用 DI 的方法
IMessageWriter writer = new ConsoleMessageWriter();
var salutation = new Salutation(writer);
salutation.Say("Hello DI!");
// 用裝飾者模式寫個新的 IMessageWriter 實作看看
IMessageWriter secureWriter = new SecureMessageWriter(writer, "A");
var salutation1 = new Salutation(secureWriter);
salutation1.Say("Hello DI!!!!!");
}
static void Main()
{
#region Late Binding
//string directory = Directory.GetCurrentDirectory();
//IConfigurationRoot configuration = new ConfigurationBuilder()
// .SetBasePath(Directory.GetCurrentDirectory())
// .AddJsonFile("appsettings.json")
// .Build();
//string typename = configuration["messageWriter"];
//Type type = Type.GetType(typename, throwOnError: true);
//IMessageWriter writer = (IMessageWriter)Activator.CreateInstance(type);
#endregion
#region Extensibility using the decorator pattern that is enabled by using DI
//IMessageWriter writer = new SecureMessageWriter(new ConsoleMessageWriter(), WindowsIdentity.GetCurrent());
#endregion
IMessageWriter writer = new ConsoleMessageWriter();
var salution = new Salution(writer);
salution.WriteMessage();
//WriteLine("Hello World!");
}
/// <exception cref="ArgumentNullException"><paramref name="writer" /> is <see langword="null" />.</exception>
public static void Test_1 () {
IMessageWriter writer = new ConsoleMessageWriter ();
var salutation = new Salutation (writer);
salutation.Exclaim ();
}
public void TestWriteNull()
{
var writer = new ConsoleMessageWriter();
writer.Write(null);
}
public void TestWrite()
{
var writer = new ConsoleMessageWriter();
writer.Write("test");
}
