public static void calculateDistances() {
for (Order order : orders) {
for (ProductType productType : order.products) {
Map<Warehouse, Double> distances = new HashMap<Warehouse, Double>();
TreeMap<Double, Warehouse> distanceDifferences = new TreeMap<Double, Warehouse>();
for (Warehouse warehouse : warehouses) {
if (warehouse.hasProduct(productType)) {
double distance = order.position.distanceTo(warehouse.position);
distances.put(warehouse, distance);
}
}
for (Warehouse warehouse : warehouses) {
double init = distances.get(warehouse);
for (Warehouse key : distances.keySet()) {
if (warehouse != key) {
init = init - distances.get(key);
}
}
distanceDifferences.put(init, warehouse);
}
Warehouse warehouse = distanceDifferences.get(distanceDifferences.lastKey());
warehouse.remove(productType);
order.addWarehouse(productType, warehouse);
}
}
}
/**
* insert
*
* @param order
* @return
*/
@Override
public int insert(Order order) {
int orderId = order.getOrderId();
int userId = order.getUserId();
int ready = order.getReady();
LinkedList<Integer> dishIdList = order.getDishIDList();
Connection connection = MyConnection.getInstance().getConnection();
try {
PreparedStatement preparedStatement =
connection.prepareStatement(
"INSERT INTO order_table (orderId, userId, ready, summ) " + "VALUES (?, ?, 0, 0)");
preparedStatement.setInt(1, orderId);
preparedStatement.setInt(2, userId);
preparedStatement.execute();
PreparedStatement preparedStatement2 = connection.prepareCall("select last_insert_id();");
ResultSet resultSet2 = preparedStatement2.executeQuery();
if (resultSet2.next()) {
orderId = resultSet2.getInt(MYSQL_LAST_INSERT_ID.toString());
}
connection.setAutoCommit(false);
for (int i = 0; i < dishIdList.size(); i++) {
PreparedStatement preparedStatement1 =
connection.prepareStatement(
"INSERT INTO order_content (orderId, dishId) " + "VALUES (?, ?)");
preparedStatement1.setInt(1, orderId);
preparedStatement1.setInt(2, dishIdList.get(i));
preparedStatement1.execute();
}
connection.commit();
connection.setAutoCommit(true);
} catch (SQLException | NullPointerException ex) {
Logger.getLogger(MySQLOrderDAO.class.getName()).error(ex);
} finally {
try {
if (connection != null) {
connection.close();
}
} catch (SQLException ex) {
Logger.getLogger(MySQLOrderDAO.class.getName()).error(ex);
}
}
return orderId;
}