| 1 | package com.popx.persistenza; | |
| 2 | ||
| 3 | import com.popx.modello.CarrelloBean; | |
| 4 | import com.popx.modello.ProdottoCarrelloBean; | |
| 5 | import javax.sql.DataSource; | |
| 6 | import java.sql.*; | |
| 7 | import java.util.*; | |
| 8 | import java.util.logging.Level; | |
| 9 | import java.util.logging.Logger; | |
| 10 | ||
| 11 | public class CarrelloDAOImpl implements CarrelloDAO { | |
| 12 | private DataSource ds; | |
| 13 | private static final Logger LOGGER = Logger.getLogger(CarrelloDAOImpl.class.getName()); | |
| 14 | ||
| 15 | /*@ public model boolean available; | |
| 16 | @ public invariant ds != null && available; | |
| 17 | @ represents available <- ds != null; | |
| 18 | @*/ | |
| 19 | ||
| 20 | public CarrelloDAOImpl() { | |
| 21 | this.ds = DataSourceSingleton.getInstance(); | |
| 22 | } | |
| 23 | ||
| 24 | ||
| 25 | /*@ public normal_behavior | |
| 26 | @ requires carrello != null | |
| 27 | @ && carrello.getClienteEmail() != null && !carrello.getClienteEmail().isEmpty() | |
| 28 | @ && carrello.getProdottiCarrello() != null | |
| 29 | @ && (\forall int i; 0 <= i && i < carrello.getProdottiCarrello().size(); | |
| 30 | @ carrello.getProdottiCarrello().get(i) != null | |
| 31 | @ && carrello.getProdottiCarrello().get(i).getProdottoId() != null | |
| 32 | @ && !carrello.getProdottiCarrello().get(i).getProdottoId().isEmpty() | |
| 33 | @ && carrello.getProdottiCarrello().get(i).getQuantity() >= 0 | |
| 34 | @ && carrello.getProdottiCarrello().get(i).getUnitaryCost() >= 0); | |
| 35 | @ assignable \everything; | |
| 36 | @ ensures available; | |
| 37 | @*/ | |
| 38 | @Override | |
| 39 | public void salvaCarrello(CarrelloBean carrello) { | |
| 40 | String upsertCart = | |
| 41 | "INSERT INTO Carrello (cliente_email) VALUES (?) " + | |
| 42 | "ON DUPLICATE KEY UPDATE id = LAST_INSERT_ID(id)"; | |
| 43 | ||
| 44 | String insertProdottoCarrello = | |
| 45 | "INSERT INTO ProdottoCarrello (carrello_id, prodotto_id, quantity, unitary_cost) " + | |
| 46 | "VALUES (?, ?, ?, ?) " + | |
| 47 | "ON DUPLICATE KEY UPDATE quantity = VALUES(quantity), unitary_cost = VALUES(unitary_cost)"; | |
| 48 | ||
| 49 | try (Connection connection = ds.getConnection()) { | |
| 50 |
1
1. salvaCarrello : removed call to java/sql/Connection::setAutoCommit → SURVIVED |
connection.setAutoCommit(false); |
| 51 | ||
| 52 | int carrelloId; | |
| 53 | ||
| 54 | // 1) Inserisci (o recupera) il carrello e ottieni l'id | |
| 55 | try (PreparedStatement psCart = connection.prepareStatement(upsertCart, Statement.RETURN_GENERATED_KEYS)) { | |
| 56 |
1
1. salvaCarrello : removed call to java/sql/PreparedStatement::setString → KILLED |
psCart.setString(1, carrello.getClienteEmail()); |
| 57 | psCart.executeUpdate(); | |
| 58 | ||
| 59 | try (ResultSet keys = psCart.getGeneratedKeys()) { | |
| 60 |
1
1. salvaCarrello : negated conditional → KILLED |
if (keys.next()) { |
| 61 | carrelloId = keys.getInt(1); | |
| 62 | } else { | |
| 63 | throw new SQLException("Impossibile ottenere l'ID del carrello."); | |
| 64 | } | |
| 65 | } | |
| 66 | } | |
| 67 | ||
| 68 | // 2) Inserisci/aggiorna prodotti del carrello (batch) | |
| 69 | try (PreparedStatement psProd = connection.prepareStatement(insertProdottoCarrello)) { | |
| 70 | for (ProdottoCarrelloBean prodotto : carrello.getProdottiCarrello()) { | |
| 71 | psProd.setInt(1, carrelloId); | |
| 72 | psProd.setString(2, prodotto.getProdottoId()); | |
| 73 | psProd.setInt(3, prodotto.getQuantity()); | |
| 74 | psProd.setFloat(4, prodotto.getUnitaryCost()); | |
| 75 | psProd.addBatch(); | |
| 76 | } | |
| 77 | psProd.executeBatch(); | |
| 78 | } | |
| 79 | ||
| 80 | connection.commit(); | |
| 81 | ||
| 82 | } catch (SQLException e) { | |
| 83 | LOGGER.log(Level.SEVERE, "SQL error in salvaCarrello", e); | |
| 84 | } | |
| 85 | } | |
| 86 | ||
| 87 | ||
| 88 | @Override | |
| 89 | /*@ public normal_behavior | |
| 90 | @ requires email != null && !email.isEmpty(); | |
| 91 | @ assignable \everything; | |
| 92 | @ ensures \result != null | |
| 93 | @ && \result.getClienteEmail().equals(email) | |
| 94 | @ && \result.getProdottiCarrello() != null | |
| 95 | @ && (\forall int i; 0 <= i && i < \result.getProdottiCarrello().size(); | |
| 96 | @ \result.getProdottiCarrello().get(i) != null | |
| 97 | @ && \result.getProdottiCarrello().get(i).getProdottoId() != null | |
| 98 | @ && !\result.getProdottiCarrello().get(i).getProdottoId().isEmpty() | |
| 99 | @ && \result.getProdottiCarrello().get(i).getQuantity() >= 0 | |
| 100 | @ && \result.getProdottiCarrello().get(i).getUnitaryCost() >= 0); | |
| 101 | @*/ | |
| 102 | public CarrelloBean ottieniCarrelloPerEmail(String email) { | |
| 103 | String queryCarrello = "SELECT * FROM Carrello WHERE cliente_email = ?"; | |
| 104 | String queryProdotti = "SELECT * FROM ProdottoCarrello WHERE carrello_id = ?"; | |
| 105 | ||
| 106 | CarrelloBean carrello = null; | |
| 107 | List<ProdottoCarrelloBean> prodottiCarrello = new ArrayList<>(); | |
| 108 | ||
| 109 | try (Connection connection = ds.getConnection()) { | |
| 110 | // Recupera il carrello | |
| 111 | try (PreparedStatement psCarrello = connection.prepareStatement(queryCarrello)) { | |
| 112 |
1
1. ottieniCarrelloPerEmail : removed call to java/sql/PreparedStatement::setString → KILLED |
psCarrello.setString(1, email); |
| 113 | ResultSet rsCarrello = psCarrello.executeQuery(); | |
| 114 | ||
| 115 |
1
1. ottieniCarrelloPerEmail : negated conditional → KILLED |
if (rsCarrello.next()) { |
| 116 | // Recupera l'ID del carrello | |
| 117 | int carrelloId = rsCarrello.getInt("id"); | |
| 118 | ||
| 119 | // Recupera i prodotti associati al carrello | |
| 120 | try (PreparedStatement psProdotti = connection.prepareStatement(queryProdotti)) { | |
| 121 |
1
1. ottieniCarrelloPerEmail : removed call to java/sql/PreparedStatement::setInt → KILLED |
psProdotti.setInt(1, carrelloId); |
| 122 | ResultSet rsProdotti = psProdotti.executeQuery(); | |
| 123 | ||
| 124 |
1
1. ottieniCarrelloPerEmail : negated conditional → KILLED |
while (rsProdotti.next()) { |
| 125 | ProdottoCarrelloBean prodotto = new ProdottoCarrelloBean( | |
| 126 | email, | |
| 127 | rsProdotti.getString("prodotto_id"), | |
| 128 | rsProdotti.getInt("quantity"), | |
| 129 | rsProdotti.getFloat("unitary_cost") | |
| 130 | ); | |
| 131 | prodottiCarrello.add(prodotto); | |
| 132 | } | |
| 133 | } | |
| 134 | ||
| 135 | // Crea il carrello | |
| 136 | carrello = new CarrelloBean(email, prodottiCarrello); | |
| 137 | } | |
| 138 | } | |
| 139 | } catch (SQLException e) { | |
| 140 | LOGGER.log(Level.SEVERE, "SQL error in ottieniCarrelloPerEmail", e); | |
| 141 | } | |
| 142 | ||
| 143 |
2
1. ottieniCarrelloPerEmail : negated conditional → KILLED 2. ottieniCarrelloPerEmail : replaced return value with null for com/popx/persistenza/CarrelloDAOImpl::ottieniCarrelloPerEmail → KILLED |
return carrello != null ? carrello : new CarrelloBean(email, prodottiCarrello); |
| 144 | } | |
| 145 | ||
| 146 | @Override | |
| 147 | /*@ public normal_behavior | |
| 148 | @ requires email != null && !email.isEmpty(); | |
| 149 | @ assignable \everything; | |
| 150 | @ ensures available; | |
| 151 | @*/ | |
| 152 | public void clearCartByUserEmail(String email) { | |
| 153 | String queryProdottoCarrello = | |
| 154 | "DELETE FROM ProdottoCarrello WHERE carrello_id = (SELECT id FROM Carrello WHERE cliente_email = ?)"; | |
| 155 | String queryCarrello = | |
| 156 | "DELETE FROM Carrello WHERE cliente_email = ?"; | |
| 157 | ||
| 158 | try (Connection connection = ds.getConnection()) { | |
| 159 |
1
1. clearCartByUserEmail : removed call to java/sql/Connection::setAutoCommit → SURVIVED |
connection.setAutoCommit(false); |
| 160 | ||
| 161 | try (PreparedStatement psProdottoCarrello = connection.prepareStatement(queryProdottoCarrello); | |
| 162 | PreparedStatement psCarrello = connection.prepareStatement(queryCarrello)) { | |
| 163 | ||
| 164 |
1
1. clearCartByUserEmail : removed call to java/sql/PreparedStatement::setString → KILLED |
psProdottoCarrello.setString(1, email); |
| 165 | psProdottoCarrello.executeUpdate(); | |
| 166 | ||
| 167 |
1
1. clearCartByUserEmail : removed call to java/sql/PreparedStatement::setString → KILLED |
psCarrello.setString(1, email); |
| 168 | psCarrello.executeUpdate(); | |
| 169 | ||
| 170 |
1
1. clearCartByUserEmail : removed call to java/sql/Connection::commit → SURVIVED |
connection.commit(); |
| 171 | } catch (SQLException ex) { | |
| 172 | // se qualcosa va male durante i DELETE, rollback della transazione | |
| 173 | try { | |
| 174 | connection.rollback(); | |
| 175 | } catch (SQLException rollbackEx) { | |
| 176 | LOGGER.log(Level.SEVERE, "Error during rollback in clearCartByUserEmail", rollbackEx); | |
| 177 | } | |
| 178 | throw ex; // rilancia per finire nel catch esterno | |
| 179 | } finally { | |
| 180 | // best-effort: ripristina autocommit prima della chiusura | |
| 181 | try { | |
| 182 | connection.setAutoCommit(true); | |
| 183 | } catch (SQLException ignore) { | |
| 184 | // ignore / log se preferisci | |
| 185 | } | |
| 186 | } | |
| 187 | ||
| 188 | } catch (SQLException e) { | |
| 189 | LOGGER.log(Level.SEVERE, "SQL error in clearCartByUserEmail", e); | |
| 190 | } | |
| 191 | } | |
| 192 | } | |
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