Java AI Chatbot

An AI-powered chatbot built using Java, Maven, and OpenAI API.

Features

• Language Model Integration: Seamless connection to a pre-trained language model (e.g., GPT-3 via API).
• Conversation Persistence: Stores conversations in a PostgreSQL database.
• Chat History Management: Reset conversations or wipe all stored chat data with simple commands.
• Interactive Logs: Outputs the conversation to a separate terminal in real-time for clarity.
• Scalable Architecture: Easily extendable and configurable to support advanced features.
• Database-Backed Commands:
  • reset: Resets the current conversation and starts a new one.
  • wipe: Deletes all conversation history from the database.

Prerequisites

1. Java Development Kit (JDK): Version 11 or later.
2. Apache Maven: Dependency management.
3. PostgreSQL: Database for storing conversations.
4. Terminal Emulator:
   • macOS: Terminal (default)
   • Linux: xterm, gnome-terminal, or similar.
   • Windows: Command Prompt or PowerShell.

Configure the Database

1. Install PostgreSQL and start the server.
2. Create the database and user:

   CREATE DATABASE chatbot;
   CREATE USER chatbot_user WITH PASSWORD 'yourpassword';
   GRANT ALL PRIVILEGES ON DATABASE chatbot TO chatbot_user;
   

3. Create the required tables:

   CREATE TABLE conversations (
      id SERIAL PRIMARY KEY,
      conversation_id UUID NOT NULL,
      role TEXT NOT NULL, -- 'user' or 'assistant'
      message TEXT NOT NULL,
      timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP
   );
   
   CREATE TABLE active_conversation (
      id SERIAL PRIMARY KEY,
      conversation_id UUID NOT NULL DEFAULT gen_random_uuid(),
      updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
   );
   
   INSERT INTO active_conversation (conversation_id) VALUES (gen_random_uuid());
   

Setup

1. Clone the repository:

   git clone <repository-url>
   cd <project-directory>
   

Update Configuration

Add your OpenAI API key and database credentials to config.properties in src/main/resources:

 OPENAI_API_KEY=your_openai_api_key
 DB_URL=jdbc:postgresql://localhost:5432/chatbot
 DB_USER=chatbot_user
 DB_PASSWORD=yourpassword

Running the Project

1. Build the Project:

   mvn clean install
   

2. Run the Application:

   mvn exec:java
   

3. View the Conversation Log:

   tail -f conversation.log
   

Testing - to be added

1. Unit Tests:

   mvn test
   

Project Structure

• Main.java: Entry point for the application.
• AIService.java: Handles AI API interactions.
• Config.java: Centralized configuration management.
• pom.xml: Maven project configuration.