Недавно я узнал больше о шаблонах проектирования и подумал, что мне стоит попробовать его. Я не уверен, является ли это правильным способом использования фабричного шаблона, и мне было интересно, если кто-то может предоставить мне обратную связь?
У меня в основном набор элементов календаря, которые похожи. Питание, тренировки и замеры. Все они имеют дату и имя и могут печатать детали. но кроме этого у них есть несколько предметов, каждый из которых нужен по-своему.
public enum AppointmentType
{
Workout,
Meal,
Measurement
}
public abstract class Appointment
{
public string Name { get; set; }
public DateTime DateStarted { get; set; }
public virtual string PrintDetails()
{
return string.Format("Type: {0}\nName: {1}\nDate: {2}",this.GetType().ToString(), Name, DateStarted.ToShortDateString());
}
}
public class Workout : Appointment
{
public List<string> Exercises { get; set; }
public Workout()
{
Exercises = new List<string>();
}
public override string PrintDetails()
{
string startInfo = base.PrintDetails();
string addedInfo = "\nToday I will be doing the following:\n";
foreach (string exercise in Exercises)
{
addedInfo += string.Format("{0}\n", exercise);
}
return startInfo + addedInfo;
}
}
public class Meal : Appointment
{
public List<string> FoodItems { get; set; }
public Meal()
{
FoodItems = new List<string>();
}
public override string PrintDetails()
{
string startInfo = base.PrintDetails();
string addedInfo = "\nToday I will be eating the following:\n";
foreach (string foodItem in FoodItems)
{
addedInfo += string.Format("{0}\n", foodItem);
}
return startInfo + addedInfo;
}
}
public class Measurement : Appointment
{
public string Height { get; set; }
public string Weight { get; set; }
public override string PrintDetails()
{
string startInfo = base.PrintDetails();
string addedInfo = string.Format("\nI am {0} feet tall and I weight {1} pounds!\n", Height, Weight);
return startInfo + addedInfo;
}
}
public interface IAppointmentFactory
{
Appointment CreateAppointment(AppointmentType appointmentType);
}
public class AppointmentFactory : IAppointmentFactory
{
public Appointment CreateAppointment(AppointmentType appointmentType)
{
switch (appointmentType)
{
case AppointmentType.Workout:
return new Workout();
case AppointmentType.Meal:
return new Meal();
case AppointmentType.Measurement:
return new Measurement();
default:
return new Workout();
}
}
}
и вот программа, использующая библиотеку:
class Program
{
public static List<Appointment> myAppointments;
public static AppointmentFactory factory;
public static Appointment myAppointment;
static void Main(string[] args)
{
myAppointments = new List<Appointment>();
factory = new AppointmentFactory();
StartLoop();
}
private static void StartLoop()
{
Console.WriteLine(string.Format("\nWelcome to Appointment App: You have {0} appointment(s)!", myAppointments.Count()));
Console.WriteLine("0 = Exit");
Console.WriteLine("1 = New Workout");
Console.WriteLine("2 = New Meal");
Console.WriteLine("3 = New Measurement");
Console.WriteLine("P = Print Schedule\n");
switch (Console.ReadLine().ToUpper())
{
case "0":
return;
case "1":
CreateNewAppointment(AppointmentType.Workout);
AddExercises();
break;
case "2":
CreateNewAppointment(AppointmentType.Meal);
AddFoodItems();
break;
case "3":
CreateNewAppointment(AppointmentType.Measurement);
GetMeasurements();
break;
case "P":
PrintSchedule();
break;
default:
return;
}
StartLoop();
}
private static void GetMeasurements()
{
Console.WriteLine("How tall are you?");
((Measurement)myAppointment).Height = Console.ReadLine();
Console.WriteLine("What is your weight?");
((Measurement)myAppointment).Weight = Console.ReadLine();
}
private static void AddFoodItems()
{
Console.WriteLine("How many food items do you want to add?");
string exerciseCount = Console.ReadLine();
for (int i = 0; i < Convert.ToInt32(exerciseCount); i++)
{
Console.WriteLine(string.Format("Food {0}:", (i + 1)));
((Meal)myAppointment).FoodItems.Add(Console.ReadLine());
}
}
private static void AddExercises()
{
Console.WriteLine("How many exercises do you want to add?");
string exerciseCount = Console.ReadLine();
for (int i = 0; i < Convert.ToInt32(exerciseCount); i++)
{
Console.WriteLine(string.Format("Exercise {0}:", (i + 1)));
((Workout)myAppointment).Exercises.Add(Console.ReadLine());
}
}
private static void PrintSchedule()
{
foreach (Appointment appointment in myAppointments)
{
Console.WriteLine(appointment.PrintDetails());
}
}
public static void CreateNewAppointment(AppointmentType appointmentType)
{
myAppointment = factory.CreateAppointment(appointmentType);
Console.WriteLine("Name:");
myAppointment.Name = Console.ReadLine();
Console.WriteLine("Start Date:");
myAppointment.Name = Console.ReadLine();
myAppointments.Add(myAppointment);
}
}
Спасибо !!
-ajax