private static Func <HotelServiceInformation, bool> CityPredicate(INeedHotelServicesRequest message)
{
if (String.IsNullOrEmpty(message.Location))
{
return(x => true);
}
return(x => x.City == message.Location);
}
public void Handle(INeedHotelServicesRequest message, AID sender)
{
List <HotelServiceInformation> hotelServiceInformations = Services.GetFor(message).ToList();
SendMessage(
sender,
new FoundHotelServicesResponse
{
CorrelationId = message.CorrelationId,
Hotels = hotelServiceInformations
});
}
public static IEnumerable <HotelServiceInformation> GetFor(
this IList <HotelServiceInformation> services,
INeedHotelServicesRequest message)
{
IEnumerable <HotelServiceInformation> query = services;
IEnumerable <Func <HotelServiceInformation, bool> > predicates = SearchPredicates.GetFor(message);
foreach (Func <HotelServiceInformation, bool> predicate in predicates)
{
query = query.Where(predicate);
}
return(query);
}
public static IEnumerable <Func <HotelServiceInformation, bool> > GetFor(INeedHotelServicesRequest message)
{
yield return(NumberOfStarsPredicate(message));
yield return(CountryPredicate(message));
yield return(CityPredicate(message));
yield return(IntervalOfTimePredicate(message));
yield return(NumberOfRoomsPredicate(message));
yield return(NumberOfPlpPerRoomPredicate(message));
yield return(HotelPricePredicate(message));
}
private static Func <HotelServiceInformation, bool> HotelPricePredicate(INeedHotelServicesRequest message)
{
if (message.HotelPrice.IsNull())
{
return(x => true);
}
else if (message.HotelPrice.Min == null && message.HotelPrice.Max != null)
{
return(x => message.HotelPrice.Max >= x.Price);
}
else if (message.HotelPrice.Min != null && message.HotelPrice.Max == null)
{
return(x => message.HotelPrice.Min <= x.Price);
}
return(x => x.Price <= message.HotelPrice.Max && x.Price >= message.HotelPrice.Min);
}
private static Func <HotelServiceInformation, bool> IntervalOfTimePredicate(INeedHotelServicesRequest message)
{
if (message.IntervalOfDays.IsNull())
{
return(x => true);
}
else if (message.IntervalOfDays.Min == null && message.IntervalOfDays.Max != null)
{
return(x => message.IntervalOfDays.Max >= x.DateStart && message.IntervalOfDays.Max <= x.DateEnd);
}
else if (message.IntervalOfDays.Min != null && message.IntervalOfDays.Max == null)
{
return(x => message.IntervalOfDays.Min >= x.DateStart && message.IntervalOfDays.Min <= x.DateEnd);
}
return(x => message.IntervalOfDays.Min >= x.DateStart && message.IntervalOfDays.Max <= x.DateEnd);
}
private static Func <HotelServiceInformation, bool> NumberOfStarsPredicate(INeedHotelServicesRequest message)
{
if (message.NumberOfStars.IsNull())
{
return(x => true);
}
else if (message.NumberOfStars.Min == null && message.NumberOfStars.Max != null)
{
return(x => message.NumberOfStars.Max >= x.NumberOfStars);
}
else if (message.NumberOfStars.Min != null && message.NumberOfStars.Max == null)
{
return(x => message.NumberOfStars.Min <= x.NumberOfStars);
}
return(x => x.NumberOfStars <= message.NumberOfStars.Max && x.NumberOfStars >= message.NumberOfStars.Min);
}
private static Func <HotelServiceInformation, bool> NumberOfPlpPerRoomPredicate(INeedHotelServicesRequest message)
{
if (message.NumberOfPeoplePerRoom == null)
{
return(x => true);
}
return(x => x.NumberOfPeoplePerRoom == message.NumberOfPeoplePerRoom);
}
private static Func <HotelServiceInformation, bool> NumberOfRoomsPredicate(INeedHotelServicesRequest message)
{
if (message.NumberOfRooms == null)
{
return(x => true);
}
return(x => x.NumberOfRooms >= message.NumberOfRooms);
}
