#22: Setup Model and DAO

Signed-off-by: Dominik Säume <Dominik.Saeume@hmmh.de>

.idea/sqlDataSources.xml

@@ -25,6 +25,8 @@
               <option value="file://$PROJECT_DIR$/src/main/resources/de/hitec/nhplus/patient/database/Patient.sql" />
               <option value="file://$PROJECT_DIR$/src/main/resources/de/hitec/nhplus/treatment/database/Treatment.sql" />
               <option value="file://$PROJECT_DIR$/src/main/resources/de/hitec/nhplus/nurse/database/Nurse.sql" />
+              <option value="file://$PROJECT_DIR$/src/main/resources/de/hitec/nhplus/medication/database/Medication.sql" />
+              <option value="file://$PROJECT_DIR$/src/main/resources/de/hitec/nhplus/medication/database/Medication_Ingredient.sql" />
             </array>
           </option>
           <option name="outLayout" value="File per object by schema.groovy" />

.idea/sqldialects.xml

@@ -3,7 +3,6 @@
   <component name="SqlDialectMappings">
     <file url="file://$PROJECT_DIR$/src/main/java/de/hitec/nhplus/patient/database/PatientDao.java" dialect="GenericSQL" />
     <file url="file://$PROJECT_DIR$/src/main/java/de/hitec/nhplus/treatment/database/TreatmentDao.java" dialect="GenericSQL" />
-    <file url="file://$PROJECT_DIR$/src/main/java/de/hitec/nhplus/treatment/database/NurseDao.java" dialect="GenericSQL" />
     <file url="PROJECT" dialect="SQLite" />
   </component>
 </project>

src/main/java/de/hitec/nhplus/datastorage/DaoFactory.java

@@ -1,5 +1,6 @@
 package de.hitec.nhplus.datastorage;
 
+import de.hitec.nhplus.medication.database.MedicationDao;
 import de.hitec.nhplus.nurse.database.NurseDao;
 import de.hitec.nhplus.patient.database.PatientDao;
 import de.hitec.nhplus.treatment.database.TreatmentDao;
@@ -56,4 +57,12 @@ public class DaoFactory {
     public NurseDao createNurseDAO() {
         return new NurseDao(ConnectionBuilder.getConnection());
     }
+
+    /**
+     * @return a {@link MedicationDao}
+     * @author Dominik Säume
+     */
+    public MedicationDao createMedicationDAO() {
+        return new MedicationDao(ConnectionBuilder.getConnection());
+    }
 }

src/main/java/de/hitec/nhplus/datastorage/DaoImp.java

@@ -20,7 +20,6 @@ public abstract class DaoImp<T> implements Dao<T> {
 
     /**
      * @param connection a Database Connection, which should be gotten from {@link ConnectionBuilder}
-     * @author Bernd Heidemann
      */
     public DaoImp(Connection connection) {
         this.connection = connection;
@@ -30,7 +29,6 @@ public abstract class DaoImp<T> implements Dao<T> {
      * Creates a new Database Entry from a Model object.
      *
      * @param t the Model instance
-     * @author Bernd Heidemann
      */
     @Override
     public void create(T t) throws SQLException {
@@ -41,7 +39,6 @@ public abstract class DaoImp<T> implements Dao<T> {
      * Read a Database Entry to a Model object.
      *
      * @param id of the Element in the Database
-     * @author Bernd Heidemann
      */
     @Override
     public T read(int id) throws SQLException {
@@ -55,8 +52,6 @@ public abstract class DaoImp<T> implements Dao<T> {
 
     /**
      * Read all Database Entries to a {@link List} of Model objects.
-     *
-     * @author Bernd Heidemann
      */
     @Override
     public List<T> readAll() throws SQLException {
@@ -67,7 +62,6 @@ public abstract class DaoImp<T> implements Dao<T> {
      * Update the Database according to the Values of the Model object.
      *
      * @param t the Model instance.
-     * @author Bernd Heidemann
      */
     @Override
     public void update(T t) throws SQLException {
@@ -78,7 +72,6 @@ public abstract class DaoImp<T> implements Dao<T> {
      * Delete a Database Entry.
      *
      * @param id of the Element in the Database.
-     * @author Bernd Heidemann
      */
     @Override
     public void delete(int id) throws SQLException {

src/main/java/de/hitec/nhplus/fixtures/Fixtures.java

@@ -29,6 +29,11 @@ public class Fixtures
             nurseFixture.setupTable(connection);
             nurseFixture.load();
 
+            MedicationFixture medicationFixture = new MedicationFixture();
+            medicationFixture.dropTable(connection);
+            medicationFixture.setupTable(connection);
+            medicationFixture.load();
+
         } catch (Exception exception){
             System.out.println(exception.getMessage());
         }

src/main/java/de/hitec/nhplus/fixtures/MedicationFixture.java

@@ -0,0 +1,157 @@
+package de.hitec.nhplus.fixtures;
+
+import de.hitec.nhplus.Main;
+import de.hitec.nhplus.datastorage.DaoFactory;
+import de.hitec.nhplus.medication.Ingredient;
+import de.hitec.nhplus.medication.Medication;
+import de.hitec.nhplus.medication.database.MedicationDao;
+
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.*;
+
+
+public class MedicationFixture implements Fixture<Medication> {
+    private static final String SCHEMA = "/de/hitec/nhplus/medication/database/Medication.sql";
+    private static final String INGREDIENT_SCHEMA = "/de/hitec/nhplus/medication/database/Medication_Ingredient.sql";
+
+    @Override
+    public void dropTable(Connection connection) throws SQLException {
+        connection.createStatement().execute("DROP TABLE IF EXISTS medication");
+        connection.createStatement().execute("DROP TABLE IF EXISTS  medication_ingredient");
+    }
+
+    @Override
+    public void setupTable(Connection connection) throws SQLException {
+
+        final InputStream schema = Main.class.getResourceAsStream(SCHEMA);
+        final InputStream ingredientSchema = Main.class.getResourceAsStream(INGREDIENT_SCHEMA);
+        assert schema != null;
+        assert ingredientSchema != null;
+        String SQL = new Scanner(schema, StandardCharsets.UTF_8)
+                .useDelimiter("\\A")
+                .next();
+        String ingredientSQL = ";" + new Scanner(ingredientSchema, StandardCharsets.UTF_8)
+                .useDelimiter("\\A")
+                .next();
+        connection.createStatement().execute(SQL);
+        connection.createStatement().execute(ingredientSQL);
+
+    }
+
+    @Override
+    public Map<String, Medication> load() throws SQLException {
+        List<Medication> medications = new ArrayList<>();
+
+        Ingredient metforminhydrochlorid = new Ingredient("Metforminhydrochlorid");
+        Ingredient cellulose = new Ingredient("Cellulose");
+        Ingredient povidon = new Ingredient("Povidon");
+        Ingredient magnesiumstearat = new Ingredient("Magnesiumstearat");
+        Ingredient lisinoprilDihydrat = new Ingredient("Lisinopril-Dihydrat");
+        Ingredient mannitol = new Ingredient("Mannitol");
+        Ingredient calciumphosphat = new Ingredient("Calciumphosphat");
+        Ingredient simvastatin = new Ingredient("Simvastatin");
+        Ingredient laktose = new Ingredient("Laktose");
+        Ingredient enoxaparinNatrium = new Ingredient("Enoxaparin-Natrium");
+        Ingredient benzylalkohol = new Ingredient("Benzylalkohol");
+        Ingredient wasser = new Ingredient("Wasser");
+        Ingredient levothyroxinnatrium = new Ingredient("Levothyroxinnatrium");
+        Ingredient staerke = new Ingredient("Stärke");
+        Ingredient akaziengummi = new Ingredient("Akaziengummi");
+        Ingredient warfarinnatrium = new Ingredient("Warfarinnatrium");
+
+        medications.add(new Medication(
+                1,
+                "Metformin",
+                "AstraZeneca",
+                List.of(
+                        metforminhydrochlorid,
+                        cellulose,
+                        povidon,
+                        magnesiumstearat
+                ),
+                "Übelkeit, Durchfall, Laktatazidose (selten)",
+                "Oral",
+                100
+        ));
+        medications.add(new Medication(
+                2,
+                "Lisinopril",
+                "Teva Pharmaceuticals",
+                List.of(
+                        lisinoprilDihydrat,
+                        mannitol,
+                        calciumphosphat,
+                        magnesiumstearat
+                ),
+                "Schwindel, trockener Husten",
+                "Oral",
+                150
+        ));
+        medications.add(new Medication(
+                3,
+                "Simvastatin",
+                "Mylan",
+                List.of(
+                        simvastatin,
+                        laktose,
+                        cellulose,
+                        magnesiumstearat
+                ),
+                "Muskelschmerzen, Leberprobleme(selten)",
+                "Oral",
+                80
+        ));
+        medications.add(new Medication(
+                4,
+                "Enoxaparin",
+                "Sanofi",
+                List.of(
+                        enoxaparinNatrium,
+                        benzylalkohol,
+                        wasser
+                ),
+                "Blutungen, Reaktionen an der Injektionsstelle",
+                "Unterhautinjektion",
+                120
+        ));
+        medications.add(new Medication(
+                5,
+                "Levothyroxin",
+                "Sandoz",
+                List.of(
+                        levothyroxinnatrium,
+                        laktose,
+                        staerke,
+                        akaziengummi
+                ),
+                "Herzrasen, Gewichtsverlust",
+                "Oral",
+                90
+        ));
+        medications.add(new Medication(
+                6,
+                "Warfarin",
+                "Apotex Inc.",
+                List.of(
+                        warfarinnatrium,
+                        laktose,
+                        staerke,
+                        magnesiumstearat
+                ),
+                "Blutungen, Blutergüsse",
+                "Oral",
+                110
+        ));
+        MedicationDao dao = DaoFactory.getInstance().createMedicationDAO();
+        Map<String, Medication> medicationsByName = new HashMap<>();
+        for (Medication medication : medications) {
+            dao.create(medication);
+            medicationsByName.put(medication.getName(), medication);
+        }
+        return medicationsByName;
+
+    }
+}

src/main/java/de/hitec/nhplus/fixtures/NurseFixture.java

@@ -14,7 +14,7 @@ import java.util.*;
 public class NurseFixture implements Fixture<Nurse> {
     @Override
     public void dropTable(Connection connection) throws SQLException {
-        connection.createStatement().execute("DROP TABLE nurse");
+        connection.createStatement().execute("DROP TABLE IF EXISTS nurse");
     }
 
     @Override

src/main/java/de/hitec/nhplus/fixtures/PatientFixture.java

@@ -16,7 +16,7 @@ import static de.hitec.nhplus.utils.DateConverter.convertStringToLocalDate;
 public class PatientFixture implements Fixture<Patient> {
     @Override
     public void dropTable(Connection connection) throws SQLException {
-        connection.createStatement().execute("DROP TABLE patient");
+        connection.createStatement().execute("DROP TABLE IF EXISTS patient");
     }
 
     @Override

src/main/java/de/hitec/nhplus/fixtures/TreatmentFixture.java

@@ -24,7 +24,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
 
     @Override
     public void dropTable(Connection connection) throws SQLException {
-        connection.createStatement().execute("DROP TABLE treatment");
+        connection.createStatement().execute("DROP TABLE IF EXISTS treatment");
     }
 
     @Override

src/main/java/de/hitec/nhplus/medication/Ingredient.java

@@ -0,0 +1,25 @@
+package de.hitec.nhplus.medication;
+
+import javafx.beans.property.SimpleStringProperty;
+
+public class Ingredient {
+    private final SimpleStringProperty name;
+
+    public Ingredient(String name) {
+        this.name = new SimpleStringProperty(name);
+    }
+
+    public String getName() {
+        return name.get();
+    }
+
+    public SimpleStringProperty nameProperty() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name.set(name);
+    }
+
+
+}

src/main/java/de/hitec/nhplus/medication/Medication.java

@@ -0,0 +1,152 @@
+package de.hitec.nhplus.medication;
+
+import javafx.beans.property.SimpleIntegerProperty;
+import javafx.beans.property.SimpleListProperty;
+import javafx.beans.property.SimpleStringProperty;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+
+import java.util.List;
+import java.util.StringJoiner;
+import java.util.stream.Collectors;
+
+public class Medication {
+    private SimpleIntegerProperty id;
+    private final SimpleStringProperty name;
+    private final SimpleStringProperty manufacturer;
+    private final SimpleListProperty<Ingredient> ingredients;
+    private final SimpleStringProperty possibleSideEffects;
+    private final SimpleStringProperty administrationMethod;
+    private final SimpleIntegerProperty currentStock;
+
+    public Medication(
+            String name,
+            String manufacturer,
+            List<Ingredient> ingredients,
+            String possibleSideEffects,
+            String administrationMethod,
+            int currentStock
+    ) {
+        this.name = new SimpleStringProperty(name);
+        this.manufacturer = new SimpleStringProperty(manufacturer);
+        this.ingredients = new SimpleListProperty<>(FXCollections.observableArrayList(ingredients));
+        this.possibleSideEffects = new SimpleStringProperty(possibleSideEffects);
+        this.administrationMethod = new SimpleStringProperty(administrationMethod);
+        this.currentStock = new SimpleIntegerProperty(currentStock);
+    }
+
+    public Medication(
+            int id,
+            String name,
+            String manufacturer,
+            List<Ingredient> ingredients,
+            String possibleSideEffects,
+            String administrationMethod,
+            int currentStock
+    ) {
+        this.id = new SimpleIntegerProperty(id);
+        this.name = new SimpleStringProperty(name);
+        this.manufacturer = new SimpleStringProperty(manufacturer);
+        this.ingredients = new SimpleListProperty<>(FXCollections.observableArrayList(ingredients));
+        this.possibleSideEffects = new SimpleStringProperty(possibleSideEffects);
+        this.administrationMethod = new SimpleStringProperty(administrationMethod);
+        this.currentStock = new SimpleIntegerProperty(currentStock);
+    }
+
+    public int getId() {
+        return id.get();
+    }
+
+    public SimpleIntegerProperty idProperty() {
+        return id;
+    }
+
+    public String getName() {
+        return name.get();
+    }
+
+    public SimpleStringProperty nameProperty() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name.set(name);
+    }
+
+    public String getManufacturer() {
+        return manufacturer.get();
+    }
+
+    public SimpleStringProperty manufacturerProperty() {
+        return manufacturer;
+    }
+
+    public void setManufacturer(String manufacturer) {
+        this.manufacturer.set(manufacturer);
+    }
+
+    public ObservableList<Ingredient> getIngredients() {
+        return ingredients.get();
+    }
+
+    public SimpleListProperty<Ingredient> ingredientsProperty() {
+        return ingredients;
+    }
+
+    public void setIngredients(List<Ingredient> ingredients) {
+        this.ingredients.set(FXCollections.observableArrayList(ingredients));
+    }
+
+    public String getPossibleSideEffects() {
+        return possibleSideEffects.get();
+    }
+
+    public SimpleStringProperty possibleSideEffectsProperty() {
+        return possibleSideEffects;
+    }
+
+    public void setPossibleSideEffects(String possibleSideEffects) {
+        this.possibleSideEffects.set(possibleSideEffects);
+    }
+
+    public String getAdministrationMethod() {
+        return administrationMethod.get();
+    }
+
+    public SimpleStringProperty administrationMethodProperty() {
+        return administrationMethod;
+    }
+
+    public void setAdministrationMethod(String administrationMethod) {
+        this.administrationMethod.set(administrationMethod);
+    }
+
+    public int getCurrentStock() {
+        return currentStock.get();
+    }
+
+    public SimpleIntegerProperty currentStockProperty() {
+        return currentStock;
+    }
+
+    public void setCurrentStock(int currentStock) {
+        this.currentStock.set(currentStock);
+    }
+
+    @Override
+    public String toString() {
+        return new StringJoiner(System.lineSeparator())
+                .add("MEDICATION")
+                .add("ID: " + this.getId())
+                .add("Name: " + this.getName())
+                .add("Manufacturer: " + this.getManufacturer())
+                .add("Ingredients: " + this.getIngredients()
+                        .stream()
+                        .map(Ingredient::getName)
+                        .collect(Collectors.joining(", ", "[", "]")))
+                .add("Possible Side Effects: " + this.getPossibleSideEffects())
+                .add("Administration Method: " + this.getAdministrationMethod())
+                .add("Current Stock: " + this.getCurrentStock())
+                .toString();
+    }
+}

src/main/java/de/hitec/nhplus/medication/database/MedicationDao.java

@@ -0,0 +1,161 @@
+package de.hitec.nhplus.medication.database;
+
+import de.hitec.nhplus.datastorage.Dao;
+import de.hitec.nhplus.medication.Ingredient;
+import de.hitec.nhplus.medication.Medication;
+
+import javax.sql.rowset.CachedRowSet;
+import javax.sql.rowset.RowSetProvider;
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class MedicationDao implements Dao<Medication> {
+    protected final Connection connection;
+
+    public MedicationDao(Connection connection) {
+        this.connection = connection;
+    }
+
+    @Override
+    public void create(Medication medication) throws SQLException {
+        final String medicationSQL = """
+                    INSERT INTO medication
+                    (name, manufacturer, possibleSideEffects, administrationMethod, currentStock)
+                    VALUES (?, ?, ?, ?, ?);
+                """;
+        PreparedStatement medicationStatement = this.connection.prepareStatement(medicationSQL);
+        medicationStatement.setString(1, medication.getName());
+        medicationStatement.setString(2, medication.getManufacturer());
+        medicationStatement.setString(3, medication.getPossibleSideEffects());
+        medicationStatement.setString(4, medication.getAdministrationMethod());
+        medicationStatement.setInt(5, medication.getCurrentStock());
+        medicationStatement.execute();
+
+        final String ingredientSQL = """
+                    INSERT INTO medication_ingredient
+                    (id, name)
+                    VALUES (?, ?);
+                """;
+        for (Ingredient ingredient : medication.getIngredients()) {
+            PreparedStatement ingredientStatement = this.connection.prepareStatement(ingredientSQL);
+            ingredientStatement.setInt(1, medication.getId());
+            ingredientStatement.setString(2, ingredient.getName());
+            ingredientStatement.execute();
+        }
+    }
+
+    @Override
+    public Medication read(int id) throws SQLException {
+        final String SQL = """
+                        SELECT medication.*, medication_ingredient.id
+                        FROM medication
+                        LEFT JOIN medication_ingredient ON medication.id = medication_ingredient.id
+                        WHERE medication.id = ?
+                """;
+        PreparedStatement statement = this.connection.prepareStatement(SQL);
+        statement.setInt(1, id);
+        ResultSet result = statement.executeQuery();
+        return getInstanceFromResultSet(result);
+    }
+
+    @Override
+    public List<Medication> readAll() throws SQLException {
+        final String SQL = """
+                    SELECT medication.*, medication_ingredient.id
+                    FROM medication LEFT JOIN
+                    medication_ingredient ON medication.id = medication_ingredient.id
+                """;
+        ResultSet result = connection.prepareStatement(SQL).executeQuery();
+        Map<Integer, List<ResultSet>> resultSetMap = new HashMap<>();
+
+        while (result.next()) {
+            List<ResultSet> resultSetList = resultSetMap.computeIfAbsent(result.getInt(0), k -> new ArrayList<>());
+            resultSetList.add(result);
+        }
+
+        List<Medication> medications = new ArrayList<>();
+        for (Map.Entry<Integer, List<ResultSet>> entry : resultSetMap.entrySet()) {
+            medications.add(getInstanceFromResultSet(this.mergeResultSets(entry.getValue())));
+        }
+        return medications;
+
+    }
+
+    @Override
+    public void update(Medication medication) throws SQLException {
+        final String SQL = """
+                    UPDATE medication SET
+                    name = ?,
+                    manufacturer = ?,
+                    possibleSideEffects = ?,
+                    administrationMethod = ?,
+                    currentStock = ?
+                    WHERE id = ?
+                """;
+        PreparedStatement preparedStatement = this.connection.prepareStatement(SQL);
+        preparedStatement.setString(1, medication.getName());
+        preparedStatement.setString(2, medication.getManufacturer());
+        preparedStatement.setString(3, medication.getPossibleSideEffects());
+        preparedStatement.setString(4, medication.getAdministrationMethod());
+        preparedStatement.setInt(5, medication.getCurrentStock());
+        preparedStatement.setInt(6, medication.getId());
+        preparedStatement.executeUpdate();
+    }
+
+    @Override
+    public void delete(int id) throws SQLException {
+        final String SQL = """
+                    DELETE FROM medication WHERE medication.id = ?;
+                """;
+        PreparedStatement preparedStatement = this.connection.prepareStatement(SQL);
+        preparedStatement.setInt(1, id);
+        preparedStatement.executeUpdate();
+    }
+
+    private Medication getInstanceFromResultSet(ResultSet result) throws SQLException {
+        Medication medication = new Medication(
+                result.getInt(1),
+                result.getString(2),
+                result.getString(3),
+                null,
+                result.getString(4),
+                result.getString(5),
+                result.getInt(6)
+        );
+
+        List<Ingredient> ingredients = new ArrayList<>();
+        while (result.next()) {
+            ingredients.add(new Ingredient(result.getString(2)));
+
+        }
+        medication.setIngredients(ingredients);
+        return medication;
+    }
+
+    /**
+     * Merges a List of ResultSets to one for further use.
+     *
+     * @param resultSetList the {@link List} of {@link ResultSet} to merge
+     * @return merged {@link ResultSet}
+     */
+    private ResultSet mergeResultSets(List<ResultSet> resultSetList) throws SQLException {
+        ResultSetMetaData metaData = resultSetList.get(0).getMetaData();
+        CachedRowSet cachedRowSet = RowSetProvider.newFactory().createCachedRowSet();
+        cachedRowSet.populate(resultSetList.get(0));
+        for (int i = 1; i < resultSetList.size(); i++) {
+            ResultSet resultSet = resultSetList.get(i);
+            while (resultSet.next()) {
+                cachedRowSet.moveToInsertRow();
+                for (int j = 1; j <= metaData.getColumnCount(); j++) {
+                    cachedRowSet.updateObject(j, resultSet.getObject(j));
+                }
+                cachedRowSet.insertRow();
+            }
+        }
+        cachedRowSet.moveToCurrentRow();
+        return cachedRowSet;
+    }
+}

src/main/resources/de/hitec/nhplus/medication/database/Medication.sql

@@ -0,0 +1,9 @@
+CREATE TABLE medication
+(
+    id                   INTEGER PRIMARY KEY AUTOINCREMENT,
+    name                 TEXT    NOT NULL,
+    manufacturer         TEXT    NOT NULL,
+    possibleSideEffects  TEXT    NOT NULL,
+    administrationMethod TEXT    NOT NULL,
+    currentStock         INTEGER NOT NULL
+)

src/main/resources/de/hitec/nhplus/medication/database/Medication_Ingredient.sql

@@ -0,0 +1,6 @@
+CREATE TABLE medication_ingredient
+(
+    id   INTEGER NOT NULL ,
+    name TEXT NOT NULL,
+    FOREIGN KEY (id) REFERENCES medication (id) ON DELETE CASCADE
+)