Riftt

Riftt is a modern, resume-capable download manager built with Java. It is designed to be lightweight, efficient, and reliable, handling large file downloads with ease.

Features

• Multi-threaded Downloading: Accelerates downloads by splitting files into chunks and downloading them in parallel.
• Resume Capability: Automatically resumes downloads from where they left off, even after connection failures or application restarts.
• Persistent State: Maintains download progress and list in a local lightweight database (SQLite).
• Modern UI: Clean, light-themed card-based interface for managing downloads.
• Unknown Size Handling: Gracefully handles servers that don't report file size.
• Browser-like Headers: Mimics standard browser requests to avoid server-side blocking (403 Forbidden).

Architecture

The project is split into two modules:

• riftt-core: The platform-agnostic download engine containing the logic for connection management, chunk handling, and state tracking.
• riftt-desktop: The desktop application layer providing the Swing-based UI and desktop-specific integrations (like database storage location).

Getting Started

Prerequisites

• Java JDK 8 or higher
• Maven

Building the Project

To build the application from source, run:

mvn clean install

This will compile the core and desktop modules. The executable JAR file will be located in: riftt-desktop/target/riftt-desktop-1.0-SNAPSHOT-jar-with-dependencies.jar

Running the Application

You can run the built application directly using Java:

java -jar riftt-desktop/target/riftt-desktop-1.0-SNAPSHOT-jar-with-dependencies.jar

Usage

1. Add Download: Click the "Add URL" button and paste your link. The application will resolve the filename automatically.
2. Manage: Use the Pause, Resume, and Cancel buttons to control your active downloads.
3. Remove: Remove completed or unwanted downloads from the list.

Technologies

• Java Swing (UI)
• SQLite (Data Persistence)
• Maven (Dependency Management)

Future Scope

Mobile (Android)

We are actively planning to bring the Riftt experience to Android. The goal is to leverage the riftt-core module, which is already platform-agnostic, and wrap it in a modern Android-native UI (using Jetpack Compose).

• Core Reuse: The existing download logic in riftt-core will be reused with minimal changes.
• Service Integration: Android Services will be used to ensure downloads continue in the background.