Introduce Local Database Mode with Embedded PostgreSQL:

- Added `LocalDatabaseManager` to support embedded PostgreSQL for local development.
- Introduced `ApplicationMode` enum for configurable runtype (`local` or `server`).
- Updated `MediaManagerApplication` to initialize `LocalDatabaseManager` based on runtype.
- Extended logging configuration for additional modules like `io.zonky.test` and `org.postgresql`.
- Added Maven dependency for `embedded-postgres` and updated configuration examples.

pom.xml

@@ -55,7 +55,7 @@
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-slf4j2-impl</artifactId>
+            <artifactId>log4j-slf4j-impl</artifactId>
             <version>${log4j.version}</version>
         </dependency>
 
@@ -83,6 +83,13 @@
             <artifactId>protobuf-java</artifactId>
             <version>4.32.0</version>
         </dependency>
+        <dependency>
+            <groupId>io.zonky.test</groupId>
+            <artifactId>embedded-postgres</artifactId>
+            <version>2.0.6</version>
+        </dependency>
+
+
     </dependencies>
 
     <build>

src/main/java/com/mediamanager/MediaManagerApplication.java

@@ -9,22 +9,55 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.util.Properties;
 
-import com.mediamanager.service.database.DatabaseManager;
+import com.mediamanager.service.database.LocalDatabaseManager;
 
 public class MediaManagerApplication {
     private static final Logger logger = LogManager.getLogger(MediaManagerApplication.class);
     private static Properties config;
-    private static DatabaseManager databaseManager;
+    private static LocalDatabaseManager databaseManager;
     private static DelegateActionManager actionManager;
     private static IPCManager ipcManager;
 
+    public enum ApplicationMode {
+        LOCAL("local"),
+        SERVER("server");
+
+        private final String value;
+
+        ApplicationMode(String value) {
+            this.value = value;
+        }
+    }
+
     public static void main(String[] args) {
         logger.info("Starting MediaManager Core Application...");
 
         try {
             // Load configuration
             loadConfiguration();
-            databaseManager = new DatabaseManager(config);
+            String runTypeString = config.getProperty("runtype","local");
+            ApplicationMode mode = null;
+
+            for (ApplicationMode am : ApplicationMode.values()) {
+                if (am.value.equalsIgnoreCase(runTypeString)) {
+                    mode = am;
+                    break;
+                }
+            }
+            if (mode == null) {
+                logger.error("Invalid run type: {}", runTypeString);
+                throw new Exception("Invalid run type: " + runTypeString);
+            }
+            logger.info("Run type: {}", mode);
+            switch (mode) {
+                case LOCAL:
+                    logger.info("Starting local database...");
+                    databaseManager = new LocalDatabaseManager(config);
+                    break;
+                case SERVER:
+                    throw new Exception("Server mode not yet implemented");
+                default:
+            }
             databaseManager.init();
             actionManager = new DelegateActionManager();
             actionManager.start();

src/main/java/com/mediamanager/service/database/DatabaseManager.java

@@ -1,55 +1,28 @@
 package com.mediamanager.service.database;
+
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
 import java.sql.Connection;
-import java.sql.DriverManager;
 import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.Properties;
 
+public abstract class DatabaseManager {
+    protected final Properties configuration;
+    protected Connection connection;
+    protected static final Logger logger = LogManager.getLogger(DatabaseManager.class);
 
-public class DatabaseManager {
-    private final Properties configuration;
-    private Connection connection;
-    private static final Logger logger = LogManager.getLogger(DatabaseManager.class);
     public DatabaseManager(Properties config) {
         this.configuration = config;
         logger.debug("DatabaseManager created with configuration:");
-
     }
 
-    public void init() throws Exception {
+    public abstract void init() throws Exception;
-        logger.info("Initializing database connection...");
-        validateConfiguration();
 
-        String databaseType = configuration.getProperty("database.type");
+    protected abstract Connection createConnection() throws Exception;
-        String databaseUrl = configuration.getProperty("database.url");
-        String databaseUsername = configuration.getProperty("database.username");
-        String databasePassword = configuration.getProperty("database.password");
-        String databasePort = configuration.getProperty("database.port");
-        String databaseName = configuration.getProperty("database.name");
 
-
+    protected void performSanityChecks() throws SQLException {
-        String connectionString = String.format("jdbc:postgresql://%s:%s/%s", databaseUrl, databasePort, databaseName);
-        logger.debug("Attempting to connect to: {}", connectionString);
-        try {
-            connection = DriverManager.getConnection(connectionString, databaseUsername, databasePassword);
-            logger.info("Database connection established successfully");
-
-            performSanityChecks();
-            logger.info("Database sanity checks passed successfully");
-
-
-        } catch (SQLException e) {
-            logger.error("Failed to connect to database", e);
-            throw new Exception("Database connection failed: " + e.getMessage(), e);
-        }
-
-
-
-    }
-    private void performSanityChecks() throws SQLException {
         logger.debug("Performing sanity checks...");
         try (Statement stmt = connection.createStatement()) {
             stmt.execute("SELECT 1");
@@ -59,27 +32,6 @@ public class DatabaseManager {
         String databaseProductVersion = connection.getMetaData().getDatabaseProductVersion();
         logger.info("Connected to database: {} v{}", databaseProductName, databaseProductVersion);
     }
-    private void validateConfiguration() throws Exception {
-        String[] requiredProperties = {
-                "database.url",
-                "database.username",
-                "database.password",
-                "database.port",
-                "database.name"
-        };
-
-        for (String property : requiredProperties) {
-            if (configuration.getProperty(property) == null ||
-                    configuration.getProperty(property).trim().isEmpty()) {
-                throw new Exception("Required database configuration missing: " + property);
-            }
-        }
-
-        logger.debug("Database configuration validated successfully");
-
-        }
-
-
 
     public Connection getConnection() {
         return connection;
@@ -98,4 +50,13 @@ public class DatabaseManager {
             logger.debug("No database connection to close");
         }
     }
+    protected boolean testConnection() {
+        try (Statement stmt = connection.createStatement()) {
+            stmt.execute("SELECT 1");
+            return true;
+        } catch (SQLException e) {
+            logger.error("Connection test failed", e);
+            return false;
+        }
+    }
 }

src/main/java/com/mediamanager/service/database/LocalDatabaseManager.java

@@ -0,0 +1,87 @@
+package com.mediamanager.service.database;
+
+import io.zonky.test.db.postgres.embedded.EmbeddedPostgres;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.sql.Connection;
+import java.util.Properties;
+
+public class LocalDatabaseManager extends DatabaseManager {
+    private static final Logger logger = LogManager.getLogger(LocalDatabaseManager.class);
+    private EmbeddedPostgres embeddedPostgres;
+
+    public LocalDatabaseManager(Properties config) {
+        super(config);
+    }
+
+    @Override
+    public void init() throws Exception {
+        logger.info("Initializing embedded PostgreSQL database...");
+
+        // Configurações específicas do modo local
+        String dataDir = configuration.getProperty("local.database.dir",
+                System.getProperty("user.home") + "/.mediamanager/db");
+        int port = Integer.parseInt(
+                configuration.getProperty("local.database.port", "54321")
+        );
+
+        // Cria diretório se não existir
+        Path dataPath = Paths.get(dataDir);
+        Files.createDirectories(dataPath);
+        logger.debug("Using data directory: {}", dataDir);
+
+        // Inicia o PostgreSQL embedded
+        logger.info("Starting embedded PostgreSQL on port {}", port);
+        embeddedPostgres = EmbeddedPostgres.builder()
+                .setDataDirectory(dataPath)
+                .setCleanDataDirectory(false)  // Mantém dados
+                .setPort(port)
+                .start();
+
+        // Cria a conexão
+        this.connection = createConnection();
+        logger.info("Embedded database connection established successfully");
+
+        // Usa o método da classe pai para sanity checks
+        performSanityChecks();
+        logger.info("Database sanity checks passed successfully");
+    }
+
+    @Override
+    protected Connection createConnection() throws Exception {
+        if (embeddedPostgres == null) {
+            throw new IllegalStateException("Embedded PostgreSQL not started");
+        }
+
+        try {
+            // Pega conexão do embedded
+            Connection conn = embeddedPostgres.getPostgresDatabase().getConnection();
+            logger.debug("Got connection from embedded PostgreSQL");
+            return conn;
+        } catch (Exception e) {
+            logger.error("Failed to get embedded connection", e);
+            throw new Exception("Embedded connection failed: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public void close() {
+        // Primeiro fecha a conexão (método da classe pai)
+        super.close();
+
+        // Depois para o embedded
+        if (embeddedPostgres != null) {
+            try {
+                logger.info("Stopping embedded PostgreSQL...");
+                embeddedPostgres.close();
+                logger.info("Embedded PostgreSQL stopped successfully");
+            } catch (Exception e) {
+                logger.error("Error stopping embedded PostgreSQL", e);
+            }
+        }
+    }
+}

src/main/resources/config.properties.example

@@ -23,4 +23,5 @@ ipc.pipe.path=/tmp/mediamanager
 ipc.buffer.size=8192
 
 ipc.socket.path=/tmp/mediamanager
+runtype=local
 

src/main/resources/log4j2.xml

@@ -28,6 +28,29 @@
             <AppenderRef ref="FileAppender"/>
         </Logger>
 
+        <Logger name="io.zonky.test" level="INFO" additivity="false">
+            <AppenderRef ref="Console"/>
+            <AppenderRef ref="FileAppender"/>
+        </Logger>
+
+        <!-- PostgreSQL JDBC Driver -->
+        <Logger name="org.postgresql" level="WARN" additivity="false">
+            <AppenderRef ref="Console"/>
+            <AppenderRef ref="FileAppender"/>
+        </Logger>
+
+        <!-- Processo do PostgreSQL embedded -->
+        <Logger name="org.postgresql.embedded" level="INFO" additivity="false">
+            <AppenderRef ref="Console"/>
+            <AppenderRef ref="FileAppender"/>
+        </Logger>
+
+        <!-- HikariCP Connection Pool -->
+        <Logger name="com.zaxxer.hikari" level="INFO" additivity="false">
+            <AppenderRef ref="Console"/>
+            <AppenderRef ref="FileAppender"/>
+        </Logger>
+        
         <Root level="info">
             <AppenderRef ref="Console"/>
             <AppenderRef ref="FileAppender"/>