// Create a new flight, or add seats to existing flight
// NOTE: if flightPrice <= 0 and the flight already exists, it maintains its current price
public boolean addFlight(int id, int flightNum, int flightSeats, int flightPrice)
throws RemoteException, InvalidTransactionException, TransactionAbortedException {
Trace.info(
"RM::addFlight("
+ id
+ ", "
+ flightNum
+ ", $"
+ flightPrice
+ ", "
+ flightSeats
+ ") called");
Flight curObj = (Flight) readData(id, Flight.getKey(flightNum));
if (curObj == null) {
// doesn't exist...add it
Flight newObj = new Flight(flightNum, flightSeats, flightPrice);
writeData(id, newObj.getKey(), newObj);
String key = newObj.getKey();
if (readDataFromLog(id, key, id) == null) {
Flight logObj = (Flight) newObj.clone();
logObj.setCount(-1);
logObj.type = 0;
writeDataToLog(id, key, logObj);
}
Trace.info(
"RM::addFlight("
+ id
+ ") created new flight "
+ flightNum
+ ", seats="
+ flightSeats
+ ", price=$"
+ flightPrice);
} else {
// add seats to existing flight and update the price...
Flight logObj = (Flight) curObj.clone();
if (readDataFromLog(id, curObj.getKey(), id) == null)
writeDataToLog(id, curObj.getKey(), logObj);
curObj.setCount(curObj.getCount() + flightSeats);
if (flightPrice > 0) {
curObj.setPrice(flightPrice);
} // if
writeData(id, curObj.getKey(), curObj);
Trace.info(
"RM::addFlight("
+ id
+ ") modified existing flight "
+ flightNum
+ ", seats="
+ curObj.getCount()
+ ", price=$"
+ flightPrice);
} // else
return (true);
}
// Adds flight reservation to this customer.
public boolean reserveFlight(int id, int customerID, int flightNum) throws RemoteException {
return reserveItem(id, customerID, Flight.getKey(flightNum), String.valueOf(flightNum));
}
// Returns price of this flight
public int queryFlightPrice(int id, int flightNum) throws RemoteException {
return queryPrice(id, Flight.getKey(flightNum));
}
public boolean deleteFlight(int id, int flightNum) throws RemoteException {
return deleteItem(id, Flight.getKey(flightNum));
}