MediaManager Core

A Java-based media management system that uses IPC (Inter-Process Communication) with named pipes and PostgreSQL for data persistence.

Features

• IPC communication using named pipes
• PostgreSQL database integration
• JPA/Hibernate for ORM
• Log4j 2 for logging
• HikariCP connection pooling
• Sample Media entity model

Prerequisites

• Java 17 or higher
• Maven 3.6+
• PostgreSQL 12 or higher

Project Structure

MediaManager-Core/
├── src/
│   └── main/
│       ├── java/
│       │   └── com/
│       │       └── mediamanager/
│       │           ├── config/          # Configuration classes
│       │           ├── model/           # JPA entities
│       │           ├── repository/      # Data access layer
│       │           ├── service/         # Business logic
│       │           ├── ipc/            # IPC implementation
│       │           ├── util/           # Utility classes
│       │           └── MediaManagerApplication.java
│       └── resources/
│           ├── config.properties       # App configuration
│           ├── log4j2.xml              # Logging configuration
│           └── META-INF/
│               └── persistence.xml     # JPA configuration
└── pom.xml

Setup

1. Database Setup

Create a PostgreSQL database and user:

CREATE DATABASE mediamanager;
CREATE USER mediamanager WITH PASSWORD 'changeme';
GRANT ALL PRIVILEGES ON DATABASE mediamanager TO mediamanager;

2. Configuration

Edit src/main/resources/config.properties and update the database credentials:

db.url=jdbc:postgresql://localhost:5432/mediamanager
db.username=mediamanager
db.password=your_password_here

3. Build the Project

mvn clean install

4. Run the Application

mvn exec:java -Dexec.mainClass="com.mediamanager.MediaManagerApplication"

Or build and run the JAR:

mvn clean package
java -jar target/MediaManager-Core-0.0.1-SNAPSHOT.jar

IPC Configuration

The application creates named pipes for inter-process communication. Default configuration:

• Pipe path: /tmp/mediamanager
• Pipe name: mediamanager-pipe
• Buffer size: 8192 bytes

You can modify these settings in config.properties.

Logging

Logs are written to:

• Console (STDOUT)
• logs/mediamanager.log (rotating daily, max 10MB per file)

Log configuration can be modified in src/main/resources/log4j2.xml.

Development

Adding New Entities

1. Create entity class in com.mediamanager.model
2. Add the entity class to persistence.xml
3. Create corresponding repository and service classes

Running Tests

mvn test

Dependencies

• PostgreSQL Driver: 42.7.5
• Hibernate ORM: 7.1.7.Final
• HikariCP: 5.1.0
• Log4j 2: 2.23.1
• Jackson: 2.16.1
• JUnit 5: 5.10.2

License

TBD

TODO

• Implement IPC server with named pipes
• Implement database connection manager
• Create repository layer
• Create service layer
• Add comprehensive tests
• Add API documentation