コード例 #1
0
  @Override
  public int prepareProductsForShipment(Order order, Customer customer)
      throws OrderWarhouseException {
    Connection conn = null;
    try {

      conn = source.getConnection();
      conn.setAutoCommit(false);

      if (!dao.checkIfProductsAvailable(order, conn)) {
        throw new OrderWarhouseException("now products!");
      }

      int totalPrice = dao.calculateProductsTotalPrice(order, conn);

      if (totalPrice > customer.getBalance()) {
        throw new OrderWarhouseException("no chash!");
      }

      dao.decreaseProductsAmounts(order, conn);
      conn.commit();
      return totalPrice;

    } catch (Exception e) {
      if (conn != null) {
        try {
          conn.rollback();
        } catch (SQLException e1) {
          e1.printStackTrace();
        }
      }
      throw new OrderWarhouseException(e);
    } finally {
      if (conn != null) {
        try {
          conn.close();
        } catch (SQLException e) {
          e.printStackTrace();
        }
      }
    }
  }
コード例 #2
0
  @Override
  public int prepareProductsForShipment(Order order, Customer customer)
      throws OrderWarhouseException {

    try {
      transaction.begin();

      if (!dao.checkIfProductsAvailable(order)) {
        throw new OrderWarhouseException("now products!");
      }

      int totalPrice = dao.calculateProductsTotalPrice(order);

      Transaction t = mgr.suspend();
      logLocationAndTotalPrice(customer, totalPrice);
      mgr.resume(t);

      if (totalPrice > customer.getBalance()) {
        throw new OrderWarhouseException("no chash!");
      }

      dao.decreaseProductsAmounts(order);

      transaction.commit();

      return totalPrice;

    } catch (Exception e) {
      try {
        transaction.rollback();
      } catch (Exception e1) {
        e1.printStackTrace();
      }

      throw new OrderWarhouseException(e);
    }
  }