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Concurrent Data Processing Pipeline with Prioritization and Error Handling

This repository contains an advanced concurrent data processing pipeline built for iOS applications. The pipeline processes items through three distinct stages—Download, Transform, and Save—while managing concurrency, task dependencies, and prioritization.

Features

  • Pipeline Stages
    Three-stage processing flow:

    • Download → Transform → Save

  • Concurrency Control
    Manages task execution limits with:

    • Up to 5 concurrent downloads
    • 2 concurrent transformations
    • 1 save operation at a time to avoid disk contention

  • Task Prioritization
    Items are processed based on priority levels (high, medium, low) to ensure critical tasks are handled first.

  • Error Handling
    A robust retry mechanism with up to 2 retries for failed tasks.

  • Cancellation Support
    Allows for cancellation of tasks at any stage, ensuring smooth removal from the pipeline if needed.

Installation

Clone the repository:

git clone https://github.com/yourusername/repo-name.git
cd repo-name

Open the project in Xcode and build.

Usage

  1. Add your items to the pipeline.
  2. Set the priority levels for each item.
  3. Run the pipeline and observe the tasks being processed through the three stages.

Contributing

Feel free to submit pull requests or report issues. All contributions are welcome!

License

This project is licensed under the MIT License. See the LICENSE file for details.