Package bcu.cmp5332.bookingsystem.data

Class BookingDataManager

java.lang.Object

bcu.cmp5332.bookingsystem.data.BookingDataManager

All Implemented Interfaces:

DataManager

public class BookingDataManager
extends Object
implements DataManager

The BookingDataManager class implements the DataManager interface to manage loading and storing of booking data to/from a text file. It provides methods to load existing bookings data into a FlightBookingSystem instance, and to store current bookings data from a FlightBookingSystem instance into a text file.

The booking data is stored in a text file specified by the RESOURCE constant. Each line in the file represents a booking record, separated by the SEPARATOR "::".

The loadData method reads from the text file, parses each line to retrieve booking details, and adds the parsed bookings to the provided FlightBookingSystem instance.

The storeData method retrieves all bookings from the provided FlightBookingSystem instance, formats them into a string representation, and writes them to the text file for storage.

Example usage:

 // Create a new instance of FlightBookingSystem and BookingDataManager
 FlightBookingSystem fbs = new FlightBookingSystem();
 BookingDataManager bookingDataManager = new BookingDataManager();
 
 // Load existing booking data into FlightBookingSystem
 bookingDataManager.loadData(fbs);
 
 // Perform operations on fbs...
 
 // Store current booking data from FlightBookingSystem
 bookingDataManager.storeData(fbs);
 

See Also:

• DataManager
• Booking
• Customer
• Flight
• FlightBookingSystem

Field Summary

Fields

Modifier and Type	Field	Description
final String	RESOURCE	The path to the bookings data file.

Constructor Summary

Constructors

Constructor	Description
BookingDataManager()

Method Summary

Modifier and Type	Method	Description
void	loadData(FlightBookingSystem fbs)	Loads existing booking data from the bookings data file into the provided FlightBookingSystem instance.
void	storeData(FlightBookingSystem fbs)	Stores current booking data from the provided FlightBookingSystem instance into the bookings data file.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

RESOURCE

public final String RESOURCE

The path to the bookings data file.

See Also:

• Constant Field Values

Constructor Details

BookingDataManager

public BookingDataManager()

Method Details

loadData

public void loadData(FlightBookingSystem fbs)
              throws IOException,
FlightBookingSystemException

Loads existing booking data from the bookings data file into the provided FlightBookingSystem instance. Each line in the file represents a booking record with fields separated by the SEPARATOR.

Specified by:

loadData in interface DataManager

Parameters:

fbs - The FlightBookingSystem instance to load booking data into

Throws:

IOException - If there is an error reading the data file

FlightBookingSystemException - If there is an error parsing the booking data

storeData

public void storeData(FlightBookingSystem fbs)
               throws IOException

Stores current booking data from the provided FlightBookingSystem instance into the bookings data file. Each booking's details are formatted and written to the file, separated by the SEPARATOR.

Specified by:

storeData in interface DataManager

Parameters:

fbs - The FlightBookingSystem instance to store booking data from

Throws:

IOException - If there is an error writing data to the file