Flink Speculative Model server

This is a simple implementation of speculative model serving using Flink which is an extension of basic model service implementation and is based on the the blog post

The overall Flink implementation is presented below:

The project contains the following modules:

Client - Small application reading generating signal and publishing three pregenerated models

Data - prebuild models.

Model - Code describing base model artifacts and its transformation.

Protobufs - Definitions of protobufs used throughout implementation.

Query - Small application demonstrating external access to a Flink queryable data, containing current model state. It works only for ModelServingKeyedJob.

Server - Actual Flink implementation.

Both Scala and Java implementations are provided.