// Create a new car location or add cars to an existing location.
// Note: if price <= 0 and the car location already exists, it maintains
// its current price.
@Override
public boolean addCars(int id, String location, int numCars, int carPrice) {
Trace.info(
"RM::addCars(" + id + ", " + location + ", " + numCars + ", $" + carPrice + ") called.");
synchronized (syncLock) {
Car curObj = (Car) readData(id, Car.getKey(location));
if (curObj == null) {
// Doesn't exist; add it.
Car newObj = new Car(location, numCars, carPrice);
writeData(id, newObj.getKey(), newObj);
Trace.info(
"RM::addCars(" + id + ", " + location + ", " + numCars + ", $" + carPrice + ") OK.");
} else {
// Add count to existing object and update price.
curObj.setCount(curObj.getCount() + numCars);
if (carPrice > 0) {
curObj.setPrice(carPrice);
}
writeData(id, curObj.getKey(), curObj);
Trace.info(
"RM::addCars("
+ id
+ ", "
+ location
+ ", "
+ numCars
+ ", $"
+ carPrice
+ ") OK: "
+ "cars = "
+ curObj.getCount()
+ ", price = $"
+ carPrice);
}
return (true);
}
}
