RADAR-Backend is a Java application based on Confluent Platform to standardize, analyze and persist data collected by RADAR-CNS data sources. It supports the backend requirements of RADAR-CNS project. The data is produced and consumed in Apache Avro format using the schema stored inside the RADAR-CNS schema repository.
RADAR-Backend provides an abstract layer to monitor and analyze streams of wearable data and write data to Hot or Cold storage. The Application Programming Interfaces (APIs) of RADAR-Backend makes the process of to integrating additional topics, wearable devices easier. It currently provides MongoDB as the Hot-storage and HDFS data store as the Cold-storage. They can be easily tuned using property files. The stream-monitors monitor topics and notify users (e.g. via emails) under given circumstances.