Simple Torrent-like Application (STA)

This project is a simple peer-to-peer (P2P) file-sharing application. It includes a tracker and multiple nodes (peers) that can share files with each other using TCP/IP and multi-threaded data transfer.

Features

• Peer-to-peer file sharing using Java sockets.
• Multi-directional data transfer (MDDT) – download file pieces from multiple peers simultaneously.
• Tracker server to manage peer-to-peer communication.
• Command-line interface (CLI) using Spring Shell for easy interaction.
• H2 database for tracking file metadata.
• Lightweight, efficient file-sharing system.

Tech Used

• Backend: Java (Socket programming, multithreading)
• CLI: Spring Shell
• Database: H2
• Build Tool: Maven

Requirements

• Java: JDK 21 or later
• Maven: Latest version (for building and managing dependencies)
• Spring Boot: 3.3.4
• H2 Database: Embedded mode for simplicity.

Setup Instructions

1. Clone the Repository

git clone https://github.com/DankoFox/STA.git
cd STA

2. Build the Project

To build the project and download dependencies:

mvn clean install

3. Running the Tracker

The tracker is the central server that keeps track of peers. Run it by executing:

mvn spring-boot:run -Dspring-boot.run.arguments="tracker"

4. Running a Node (Peer)

Each peer (or node) can be run as a separate instance. To run a peer, execute the following command:

mvn spring-boot:run -Dspring-boot.run.arguments="node"

5. Available Commands (CLI)

After running the node, you can interact with it using the following commands:

• start-download <file-name>: Start downloading a file from available peers.
• stop-download <file-name>: Stop the download process.
• show-stats: Display upload/download statistics.
• upload <file-path>: Share a file with the network.

6. Configuration

Database: The application uses H2 in embedded mode by default. Configuration for H2 is available in the application.properties file in the src/main/resources directory:

spring.datasource.url=jdbc:h2:file:./data
spring.datasource.driver-class-name=org.h2.Driver
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.h2.console.enabled=true

You can access the H2 console at http://localhost:8080/h2-console to view or manage the data.

License

This project is licensed under the MIT License.