static void Main(string[] args)
{
LoggerHandler fatalLogger = new FatalHandler();
LoggerHandler errorLogger = new ErrorHandler();
LoggerHandler infoLogger = new InfoHandler();
LoggerHandler debugLogger = new DebugHandler();
LoggerHandler chainRoot = fatalLogger;
fatalLogger.SetNext(errorLogger);
errorLogger.SetNext(infoLogger);
infoLogger.SetNext(debugLogger);
chainRoot.Handle("Fatal error occured!", 1);
chainRoot.Handle("Error occured!", 2);
chainRoot.Handle("Info occured!", 3);
chainRoot.Handle("Debug occured!", 4);
Console.WriteLine();
Console.WriteLine("[*] Log Messages --> ");
chainRoot.Read();
Console.WriteLine();
Console.WriteLine("Now in reverse");
LoggerHandler fatalLogger2 = new FatalHandler();
LoggerHandler errorLogger2 = new ErrorHandler();
LoggerHandler infoLogger2 = new InfoHandler();
LoggerHandler debugLogger2 = new DebugHandler();
LoggerHandler chainRoot2 = debugLogger2;
debugLogger2.SetNext(infoLogger2);
infoLogger2.SetNext(errorLogger2);
errorLogger2.SetNext(fatalLogger2);
chainRoot2.Handle("Debug occured!", 4);
chainRoot2.Handle("Info occured!", 3);
chainRoot2.Handle("Error occured!", 2);
chainRoot2.Handle("Fatal error occured!", 1);
}
public void SetNext(LoggerHandler next)
{
this.next = next;
}