static void Main(string[] args)
{
#region Static Factory Method Pattern
// use static method
ILogger_static_factory logger_static_factory = LoggerFactory_static_factory.Create(LoggerType.DB);
#endregion
#region Simple Factory Pattern
// no using static method
var factory_simple = new LoggerFactory_simple_factory();
var dbLogger_simple = factory_simple.CreateDbLogger();
#endregion
#region Factory Method Pattern
LogFactory logger = new XmlLogFactory();
logger.Log("Log something");
LogFactory logger_s = LogFactory.GetLogger();
logger_s.Log("Log somethinf");
#endregion
#region Abstract Factory Patthern
AbstractFactory factory = new ConcreteFactory1();
ProductA prodA = factory.CreateProductA();
ProductB prodB = factory.CreateProductB();
#endregion
}
// Static Factory Method
// loggertype는 enum으로 하는 것이 일반적이다.
public static ILogger_static_factory Create(LoggerType loggerType)
{
ILogger_static_factory logger = null;
switch (loggerType)
{
case LoggerType.DB:
logger = new DbLogger_static_factory();
break;
case LoggerType.XML:
logger = new XmlLogger_static_factory();
break;
case LoggerType.JSON:
logger = new JsonLogger_static_factory();
break;
default:
throw new InvalidOperationException();
}
return(logger);
}
