Class 18 - Maven

Aula 18 - Maven/class_18_maven/Pharmacy/avisos.log

@@ -0,0 +1 @@
+[18-08-2022 20:04:10] [ DEBUG] [MedicineDaoImpl:26] Saving a new medicine: Medicine { name = Ibuprofeno | laboratory = Aché | quantity = 395 | price = R$ 23,00 }

Aula 18 - Maven/class_18_maven/Pharmacy/create.sql

@@ -0,0 +1,7 @@
+--DROP TABLE IF EXISTS medicines;
+CREATE TABLE IF NOT EXISTS medicines (
+id INT AUTO_INCREMENT PRIMARY KEY,
+name VARCHAR(64),
+laboratory VARCHAR(64),
+quantity INT,
+price DOUBLE);

Aula 18 - Maven/class_18_maven/Pharmacy/pom.xml

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>Pharmacy</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>18</maven.compiler.source>
+        <maven.compiler.target>18</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>5.9.0</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>2.1.214</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+            <version>1.2.17</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.0.0-M6</version>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

Aula 18 - Maven/class_18_maven/Pharmacy/src/main/java/com/dh/medicine/dao/IDao.java

@@ -0,0 +1,5 @@
+package com.dh.medicine.dao;
+
+public interface IDao<T> {
+    T save(T t);
+}

Aula 18 - Maven/class_18_maven/Pharmacy/src/main/java/com/dh/medicine/dao/SettingJDBC.java

@@ -0,0 +1,38 @@
+package com.dh.medicine.dao;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+
+public class SettingJDBC {
+    /** Attributes **/
+    private String jdbcDriver, dbUrl, userName, userPassword;
+
+    /** Constructor **/
+    public SettingJDBC(String jdbcDriver, String dbUrl, String userName, String userPassword) {
+        this.jdbcDriver = jdbcDriver;
+        this.dbUrl = dbUrl;
+        this.userName = userName;
+        this.userPassword = userPassword;
+    }
+
+    public SettingJDBC() {
+        this.jdbcDriver = "org.h2.Driver";
+        this.dbUrl = "jdbc:h2:mem:medicines;DB_CLOSE_DELAY=-1;INIT=RUNSCRIPT FROM 'create.sql'";
+        this.userName = "sa";
+        this.userPassword = "";
+    }
+
+    /** Method **/
+    public Connection connectWithDatabase() {
+        Connection connection = null;
+
+        try {
+            Class.forName(jdbcDriver).newInstance();
+            connection = DriverManager.getConnection(dbUrl, userName, userPassword);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        return connection;
+    }
+}

Aula 18 - Maven/class_18_maven/Pharmacy/src/main/java/com/dh/medicine/dao/impl/MedicineDaoImpl.java

@@ -0,0 +1,49 @@
+package com.dh.medicine.dao.impl;
+
+import com.dh.medicine.dao.IDao;
+import com.dh.medicine.dao.SettingJDBC;
+import com.dh.medicine.model.Medicine;
+import org.apache.log4j.Logger;
+
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class MedicineDaoImpl implements IDao<Medicine> {
+    /** Attributes **/
+    private SettingJDBC settingJDBC;
+    final static Logger logger = Logger.getLogger(MedicineDaoImpl.class);
+
+    /** Constructor **/
+    public MedicineDaoImpl(SettingJDBC settingJDBC) {
+        this.settingJDBC = settingJDBC;
+    }
+
+    /** Methods **/
+    @Override
+    public Medicine save(Medicine medicine) {
+        logger.debug("Saving a new medicine: " + medicine.toString());
+        Connection connection = settingJDBC.connectWithDatabase();
+        Statement statement = null;
+        String query = String.format("INSERT INTO medicines (name, laboratory, quantity, price) " +
+                        "VALUES ('%s', '%s', '%s', '%s')",
+                medicine.getName(), medicine.getLaboratory(), medicine.getQuantity(),
+                medicine.getPrice());
+
+        try {
+            statement = connection.createStatement();
+            statement.executeUpdate(query, Statement.RETURN_GENERATED_KEYS);
+            ResultSet resultSet = statement.getGeneratedKeys();
+            if (resultSet.next())
+                medicine.setId(resultSet.getInt(1));
+
+            connection.close();
+        }
+        catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        return medicine;
+    }
+}