/*
* Persists the BookingComponent to given filePath, returns true if
* data was persisted successfuly or false if not.
*/
public bool Persist(BookingComponent booking, String filePath)
{
String dataDirName = Path.GetDirectoryName(filePath);
if (!Directory.Exists(dataDirName))
{
CreateDir(dataDirName);
}
if (File.Exists(filePath))
{
File.Delete(filePath);
}
try
{
System.IO.File.AppendAllText(filePath, booking.ToCSV());
}
catch
{
return(false);
}
return(true);
}
/*
* Updates the BookingComponent instance currently loaded in the
* system.
*/
public void UpdateBooking(DateTime arrival, DateTime departure)
{
List <PersonComponent> savedGuests = CurrentBook.GetGuests();
List <BookingDecorator> decorationStack;
BookingComponent booking = CurrentBook.Unwrap(out decorationStack);
booking = bFact.UpdateBooking(booking.GetBookingNb(),
CurrentCust,
arrival,
departure);
if (decorationStack != null)
{
foreach (BookingDecorator reference in decorationStack)
{
reference.Setcomponent(booking);
booking = reference;
}
}
CurrentBook = booking;
foreach (PersonComponent g in savedGuests)
{
CurrentBook.AddGuest(g);
}
}
/*
* Decorates a BookingComponent, wrapping it inside an EveningMeal
* decorator.
*/
public EveningMeal AddEveningMeal(BookingComponent booking,
String dietRequirements)
{
EveningMeal em = new EveningMeal(dietRequirements);
em.Setcomponent(booking);
return(em);
}
/*
* Decorates a BookingComponent, wrapping it inside a Breakfast
* decorator.
*/
public Breakfast AddBreakfast(BookingComponent booking,
String dietRequirements)
{
Breakfast bf = new Breakfast(dietRequirements);
bf.Setcomponent(booking);
return(bf);
}
// METHODS RELATED TO BOOKINGS:
/*
* Persists the BookingComponent to {dataDirectory}/{bookingNb}.csv;
* returns true if data was persisted successfuly or false if not.
*/
public bool Persist(BookingComponent booking)
{
String filePath = (String.Format(@"{0}/{1}.csv",
dataDirectory,
booking.GetBookingNb()));
return(dataWriter.Persist(booking, filePath));
}
/*
* Adds Guests to a BookingComponent according to data contents of a
* dictonary<attribute, values>, presumably recovered from persisted
* data (the dictonary keys should follow the naming implemented in
* the *Field.cs enumerations)
*/
private BookingComponent addGuestsData(
BookingComponent b,
List <Dictionary <String, String> > gData)
{
foreach (Dictionary <String, String> d in gData)
{
b.AddGuest(personFactory.RestoreGuest(d));
}
return(b);
}
/*
* Returns the root BookingComponent of the decoration stack;
* references outputs a list of pointers to all the BookingDecorator
* instances in the decoration stack.
*/
public override BookingComponent Unwrap(
out List <BookingDecorator> references)
{
BookingComponent component = this;
List <BookingDecorator> decorators = new List <BookingDecorator>();
while (component.isDecorator())
{
decorators.Add((BookingDecorator)component);
component = ((BookingDecorator)component).decoratedComponent;
}
references = decorators;
return(component);
}
/*
* Decorates a BookingComponent according to data contents of a
* dictonary<attribute, values>, presumably recovered from persisted
* data (the dictonary keys should follow the naming implemented in
* the *Field.cs enumerations)
*/
private BookingComponent addExtrasData(
BookingComponent b,
Dictionary <String, String> bData)
{
if (b != null &&
bData != null)
{
String s1;
String s2;
String s3;
if (bData.TryGetValue(
BreakfastField.DIET_REQUIREMENT_BREAKFAST
.ToString(),
out s1))
{
b = AddBreakfast(b, s1);
}
if (bData.TryGetValue(
EveningMealField.DIET_REQUIREMENT_EVENING
.ToString(),
out s1))
{
b = AddEveningMeal(b, s1);
}
if (bData.TryGetValue(CarHireField.DRIVER_NAME.ToString(),
out s1) &&
bData.TryGetValue(CarHireField.START.ToString(),
out s2) &&
bData.TryGetValue(CarHireField.END.ToString(),
out s3))
{
b = AddCarHire(b,
s1,
Convert.ToDateTime(s2),
Convert.ToDateTime(s3));
}
}
return(b);
}
/*
* Instantiates a BookingComponent from a
* List<Dictonary<attribute, values>>, presumably recovered from
* persisted data (the dictonaries keys should follow the naming
* implemented in the *Field.cs enumerations)
*
* Thows Argument exception if there is a problem with the contents
* of the dictionary passed as a parameter.
*/
public BookingComponent Restore(
List <Dictionary <String, String> > booking)
{
BookingComponent result = null;
Dictionary <String, String> bData;
Dictionary <String, String> cData;
List <Dictionary <String, String> > guestsData;
extract(booking, out bData, out cData, out guestsData);
String bookingNb;
String csvArrival;
String csvDeparture;
if (bData != null &&
cData != null &&
bData.TryGetValue(BookingField.BOOKING_NUMBER.ToString(),
out bookingNb) &&
bData.TryGetValue(BookingField.ARRIVAL.ToString(),
out csvArrival) &&
bData.TryGetValue(BookingField.DEPARTURE.ToString(),
out csvDeparture))
{
result = getNewBooking(Int32.Parse(bookingNb),
personFactory.RestoreCustomer(cData),
Convert.ToDateTime(csvArrival),
Convert.ToDateTime(csvDeparture));
if (result.GetCustomer().IsGuest())
{
result.AddGuest(result.GetCustomer());
}
}
result = addGuestsData(result, guestsData);
result = addExtrasData(result, bData);
return(result);
}
/*
* Decorates a BookingComponent, wrapping it inside a CarHire
* decorator.
*
* Throws ArgumentException if either hire start or hire end
* date falls without the booking dates range.
*/
public CarHire AddCarHire(BookingComponent booking,
String driverName,
DateTime start,
DateTime end)
{
DateTime arrival;
DateTime departure;
booking.GetDates(out arrival, out departure);
if (start < arrival || end > departure)
{
throw new ArgumentException("CarHire start & end dates must"
+ " be within the booking dates"
+ " range.");
}
CarHire ch = new CarHire(driverName, start, end);
ch.Setcomponent(booking);
return(ch);
}
/*
* Returns a reference to a new BookingComponent identical in content
* to calling instance, except unwraped from the BookingDecorator
* passed as a parameter (or the to the Booking itself if it is not
* decorated at all).
*/
public override BookingComponent Undecorate(BookingDecorator reference)
{
if (this == reference)
{
return(decoratedComponent);
}
/* Short circuit method if the decorator to remove is the
* last one added.
*/
List <BookingDecorator> references;
BookingComponent result = this.Unwrap(out references);
foreach (BookingDecorator decorator in references)
{
if (decorator != reference)
{
decorator.decoratedComponent = result;
result = decorator;
}
}
return(result);
}
public void Setcomponent(BookingComponent booking)
{
decoratedComponent = booking;
}
