Caching, Cache Pattern, Cache Invalidation & Eviction What is Cache? Cache is a hardware or software component which helps in serving the data which is either frequently requested or is expensive to compute on, so caching allows you to efficiently reuse previously retrieved or computed data and helps in saving the expensive operations. Cache is based on the principle of…

A brief introduction to Apache NiFi, a powerful and scalable Flow-Based open-source Data Ingestion and Distribution framework. — Overview Apache NiFi is an open-source, easy to use, and reliable system to process and distribute data. The data can be propagated from almost any source to any destination. NiFi operates on the principle of Configuration over Coding. That means it is possible to create simple ETL to complex data lack…

A guide to build custom starter to solve cross-cutting concerns by leveraging spring’s autoconfiguration and AOP. — Spring Boot takes an opinionated view of the Spring platform to enable developers to build stand-alone, production-ready applications with little effort in no time. Instead of having to configure Spring and/or 3rd-party components, such as databases or message brokers, manually like in old XML days, Spring provides out-of-the-box auto configurations.

This post will briefly explain about what is OSGi, basic concepts in OSGi and its major application areas. — What is OSGi? OSGi (Open Service Gateway Initiative) technology is a set of specifications and a reference implementation for each specification that define a dynamic component system for Java. OSGi is a Java framework for developing and deploying modular software programs and libraries. …