Hexagonal Architecture, firstly introduced by Alistair Cockburn back in early 2000s, (who is also one of the main protogonists of Manifesto of Agile Software Development) is pretty popular architectural style applied to layered architectured software systems, which lack of flexibility, entaglement. …

Application of different Service Mesh Tactics — Performance concerns are driving forces for software architects to come up with new techniques for more efficient software performance. The performance is also hot topic for teams applying microservices. The extreme popularity of microservices has led to evaluation of service mesh pattern/architecture (whatever you want to call this…). In software…

Designing well-established Interfaces — There is no software system in isolation. Software systems communicate with each other to request or response some data. This is also called interoperability. Interoperability is about the degree to which two or more systems can usefully exchange meaningful information via interfaces in particular context. Software systems can exchange this…

In Java world, Spring Framework/Boot is a must-have skill set. XML-Based Configuration was for a long time main mean. But overloaded xmls with unreadable structure has become quickly headache for developers. Spring has started to switch from XML-based configuration to Annotation-based Configuration. Nowadays, greenfield projects are structured almost always in…

Although IntelliJ comes with plenty of useful functionalities, there hundreds of third party plugins that could be added on to ease the daily coding activities. Without further due, let us have a look at some useful plugins that are, in my point of view, very handy for specific use cases. …

Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, Dependency Inversion — This article is the first part of the blog series, dedicated to well-known software design principles, that evolved over time and were finally summarised by Robert C. Martin with initials of the corresponding principles. These principles guide us how to build well-designed software systems, giving best practices for arranging classes…

Sidecar/Sidekick, Ambassador, Scatter/Gather, BFF, Anti-Corruption Layer, CQRS, Event Sourcing, Service Mesh, Dumb-Smart Components, Unidirectional Architecture — Software Architecting might take a slightly different approach in applications that are build in cloud-native environments. These applications are extensively built in forms of microservices. Beside that, these applications should be able to run in dynamically orchestrated and containerized environments in order to take advantage of cloud computing model.

Kubernetes is an open-source container orchestration tool that was initially developed by Google and now maintained by Cloud Native Computing Foundation. kubectl is the command line tool to manage kubernetes clusters. Whoever likes writing commands rather than using Kubernetes Dashboard will end up using kubectl. …

Essential Design Patterns that are used in JDK — 21 famous software design patterns that are summarised and presented by GoF can be found frequently in Java Core Libraries. Depending on situation different patterns are elegant way to implement object oriented programming. …