// 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);
}
public void abort(int transactionId) throws RemoteException, InvalidTransactionException {
int indx = logContains(transactionId);
Log temp;
if (indx > -1) {
temp = (Log) logArray.elementAt(indx);
} else {
System.out.println("nothing in array");
return;
}
for (Enumeration e = temp.getKeys(); e.hasMoreElements(); ) {
System.out.println("For loop");
String key = (String) (e.nextElement());
RMItem obj = temp.get(key);
if (obj.getType() == 0) {
Flight flight = (Flight) obj;
if (flight.getCount() == -1) {
System.out.println("entering count=-1 block");
removeData(transactionId, key);
} else {
System.out.println("entering other block");
writeData(transactionId, key, flight);
}
} else if (obj.getType() == 1) {
Customer cust = (Customer) obj;
if (cust.getID() == -1) {
System.out.println("entering remove data for customer");
removeData(transactionId, key);
} else {
System.out.println("entering write data for customer");
writeData(transactionId, key, obj);
}
}
}
}
