Welcome to northCoder

It’s possible to access a wide array of data about your RabbitMQ installation using the RabbitMQ management API - a REST API which returns JSON responses. Some of the data can be a bit unintuitive without an explanation, and the documentation was initially a bit hard to find… Here are some notes…

A small demo app showing some features of Spring Boot for handling a Thymeleaf template, a JSON request, using Spring JdbcTemplate, with some Java records, lambdas and streams. The demo uses a server-side DataTable for the demo. Not intended for production use.

A very basic Maven-based set-up for a Jakarta EE 9 web app (servlet) running on Tomcat 10, using NetBeans 13.

Two different configurations for my SSL certificate: one for Tomcat and another for embedded Jetty.

Because I can never remember what the abbreviations mean.

A simple-looking piece of code which results in something other than a list of Integer values being stored in a List<Integer> object.

Some notes to self about inaccuracies in floating point values.

I recently needed to convert text files created by one application into a completely different format, to be processed by a different application. The source files did not have line terminators. In some cases, the files were too large to be read into memory (without causing resource problems). A small Python script to the rescue - during which I learned about callables and sentinels.

Parsing a CSV file is a simple task, with great library support. This short example uses Commons CSV, together with Java streaming techniques. It also uses an enum, a lambda, a static factory method, a method reference, and other techniques. In other words, a combination of different tools, with some notes to help me remember it all.

Quick note on the syntax for using control characters in bash commands…