public static IForecastStrategy GetForecastStrategy(
ForecastTypeEnum forecastType,
WeatherForecast weatherForecast)
{
switch (forecastType)
{
default:
{
return(new EasyForecastStrategy(weatherForecast));
}
case ForecastTypeEnum.hourly:
{
return(new HourlyForecastStrategy(weatherForecast));
}
case ForecastTypeEnum.threeDays:
{
return(new ThreeDayForecastStrategy(weatherForecast));
}
case ForecastTypeEnum.fourteenDays:
{
return(new FourteenDayForecastStrategy(weatherForecast));
}
}
}
private ForecastTypeEnum GetForecastTypeFromSettings()
{
ForecastTypeEnum type = ForecastTypeEnum.easy;
switch (Properties.Settings.Default.userForecastPreference)
{
case 0:
{
type = ForecastTypeEnum.easy;
break;
}
case 1:
{
type = ForecastTypeEnum.hourly;
break;
}
case 2:
{
type = ForecastTypeEnum.threeDays;
break;
}
case 3:
{
type = ForecastTypeEnum.fourteenDays;
break;
}
}
return(type);
}
public List <string> GetForecast(
int zipcode,
DateTime date,
TemperatureTypeEnum temperatureType,
ForecastTypeEnum forecastType)
{
try
{
CheckParametersValid(zipcode, date, temperatureType, forecastType);
}
catch (ArgumentException ae)
{
//ToDo Fehlermeldung an UI
}
// = "Orchestrierung", ruft Methoden auf ohne zu wissen, woher bspw. Parameter herkommen
// Funktionales Programmieren
_temperatureStrategy = TemperatureStrategyFactory.GetTemperatureStrategy(temperatureType);
// Exercise: New Provider (e.g. Random) and change next Line to see if it still work
IWeatherForecastProvider weatherForecastProvider = new OpenWeatherAPI(HttpClientFactory.CreateClient(), "a1fcc507923163ff1bae113a80d8f82a");
WeatherForecast weatherForecast = new WeatherForecast(weatherForecastProvider);
_forecastStrategy = ForecastStrategyFactory.GetForecastStrategy(forecastType, weatherForecast);
List <string> result = new List <string>();
try
{
result = _forecastStrategy.GetForecast(zipcode, _temperatureStrategy, date);
}
catch (ZipNotFoundException ex)
{
result.Add(ex.Message);
}
catch (Exception ex)
{
result.Add($"Exception: {ex.Message}");
}
return(result);
}
private void CheckParametersValid(int zipcode, DateTime date, TemperatureTypeEnum temperatureType, ForecastTypeEnum forecastType)
{
//ToDo Validation for Enums
var validation = new UiValidation();
if (validation.IsZipcode(zipcode) && validation.IsStringADate(date.ToString()))
{
}
else
{
throw new ArgumentException("Invalid Arguments");
}
}
