Queue Management System - Simulation

💻 Overview

A robust Java desktop simulation tool designed to model and analyze multi-server queue dynamics. By leveraging multithreading and a Layered Architecture, this system provides a highly responsive environment to observe real-time task evolution, customer flow, and statistical bottlenecks. It features configurable scheduling strategies and concurrent processing engines.

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🤍 Tech Stack

• Language: Java 21
• Frontend: Java Swing (Concurrent UI Updates)
• Concurrency: Runnable, Threads, BlockingQueue, AtomicInteger
• Patterns: * Strategy Pattern (Dynamic Task Dispatching)
  • MVC Pattern (Separation of logic, model, and UI)

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🎀 Core Functionality

• Dynamic Simulation: Real-time generation of tasks with configurable arrival and service time distributions.
• Scheduling Strategies: * Shortest Queue Strategy: Prioritizes servers with the fewest active tasks.
  • Shortest Time Strategy: Prioritizes servers with the minimum cumulative wait time.
• Concurrent Execution: Every server operates on an independent thread, allowing parallel simulation and accurate synchronization via AtomicInteger and thread-safe collections.
• Data Logging: Automatic generation of execution logs and final statistics (Average Wait Time, Service Time, Peak Hour).

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📂 Project Structure

• model: Contains core entities (Task, Server) managed by concurrent primitives.
• businessLogic: Implements the SimulationManager, Scheduler, and the Strategy pattern logic.
• GUI: Handles the Swing interface and real-time state visualization.

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Visual Documentation