private static void EarlyBindingExample()
{
IMessageWriter writer =
new SecureMessageWriter(
writer: new ConsoleMessageWriter(),
identity: GetIdentity());
var salutation = new Salutation(writer);
salutation.Exclaim();
}
private static void LateBindingExample()
{
IConfigurationRoot configuration = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json")
.Build();
string typeName = configuration["messageWriter"];
Type type = Type.GetType(typeName, throwOnError: true);
IMessageWriter writer =
new SecureMessageWriter(
writer: (IMessageWriter)Activator.CreateInstance(type),
identity: GetIdentity());
var salutation = new Salutation(writer);
salutation.Exclaim();
}