Gedanken zur agilen Softwareentwicklung
The Rocinante library has now passed some important milestones. It can read and write messages and masters the scalar base types. The next step is now to support Repeated Fields. Repeated fields are the Protocol Buffer counterpart to lists and arrays in other protocols.
After the Rocinante project has mastered some basic functionalities of Protocol Buffer, the project automation is now to be improved by a Maven plugin.
Sometimes even developers want to present something. It’s nice when there’s a tool that picks up the developers in their comfort zone. Software developers are a special clientele and have very specific requirements for a software solution for creating and giving presentations.
The third article on Rocinante finally deals with the interesting part of the protocol. How the parts of a message are encoded into the binary Protocol Buffer representation and decoded again. Rocinante uses a two-stage approach. The basis is formed by a ProtoInputStream and a ProtoOutputStream, in which the basic mechanisms are implemented. For each message a generated Proto class with individual read and write methods is based on this.
In the first article on Project Rocinante, we discussed the processing of Protocol Buffer definition files with CongoCC. In this post we will create the first Java classes based on this definitions.
For a software developer who wants to improve his own skills, it is always helpful to try out new topics. A nice side effect of such small projects is that you always get new material for articles like this one.
With Java 22, the Gatherers (JEP 461) have joined stream processing. Until now, stream processing consisted of three parts: the source, intermediate operations and a terminal operation. While the source and the termination operation were already quite flexible since Java 8, there were few possibilities to break out of the existing set for the intermediate operators.
This article is a slightly updated English version of the article “REST Endpunkte mit Filtern”.
In addition to sorting and pagination, filtering is a fairly common action on REST endpoints. In contrast to the first two, however, there is no adequate solution for filtering in the Spring Boot framework. With little effort, however, this can be elegantly implemented with the Spring Boot tools.
The JUnit 5 test library offers a wide range of options for extending the framework and thus simplifying the work of software developers. One of these options is the DisplayNameGenerator, which can be used to modify the generation of test names in the console output. When creating exercises for a course, I was surprised to find that there is a DisplayNameGenerator that replaces underscores with spaces, but none that handles the camel case form. Fortunately, this can be changed.
Im ersten Beitrag zum Thema wurde eine einfache DSL zur Verarbeitung von CSV Dateien vorgestellt. In diesem Beitrag soll die DSL um einige weitere Feature ergänzt werden.