@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();
}
}
}
}
@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);
}
}