Example #1
0
  // 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);
  }
Example #2
0
  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);
        }
      }
    }
  }