Mary Grygleski and Fabio Tiriticco - Retrofit Your Java App with a Reactive Flow Pipeline

Legacy applications that were developed in bygone days may appear to be close to unsalvageable. In reality, these applications are still running in production and carrying out the important day-to-day missions for their respective companies. After all, companies have spent a considerable amount of time and money on developing those applications, and despite the lack of perfection, these applications nonetheless keep their companies in operation. So does it make sense for an entire legacy application to be re-written? Keep in mind that the implementation of certain business functionality can be a daunting task for the busy developers. How about if we re-design the system, and identify pieces of the complex business functionality in the legacy system that can potentially be «recycled», and retrofit them into the new system that leverages on the power of the reactive data flow pipeline?