WebSocket is a computer communications protocol, providing full-duplex communication channels over a single TCP connection. It is designed to be implemented in web browsers and web servers, but it can be used by any client or server application.

“cool-retro-term“ is a terminal emulator which mimics the look and feel of the old cathode tube screens. It looks familiar for the “old” people like me who have even seen the old enough monitors like this:

Newsbeuter is an open-source RSS/Atom feed reader for text terminals.

When I was running “sudo apt-get update” and a sudden power off happened. After restarting Ubuntu, I find the following error after running “sudo apt-get update” again:

ZooKeeper is a high-performance coordination service for distributed applications. It exposes common services - such as naming, configuration management, synchronization, and group services - in a simple interface so you don’t have to write them from scratch.

Lombok is a Java library which provides a set of annotations with which you can simplify your Java code(get rid of “getter/setter/equals/hashcode” and etc) by using the annotations, after that Lombok will generate the boilerplate code for you during the compiling/building time(“compile” for “Eclipse/IntelliJ IDEA with plugins”, “build” for “Maven/Gradle”) with the annotation information. Then you can use the Java classes as vanilla Java classes.

From here, here, here and here.

It’s difficult to figure out how a Gradle script works as a pure Groovy script. Such as, where are the “buildscript/task/project/allprojects/subprojects/dependencies” functions defined, if they are function calls really?

Recently, I’m working on a project in which I use Grails to implement RESTful API back-end with the “rest-api” profile. It’s simple and works well, until the frond-end developer asks me to intergrate the front-end implementation(React with “javscript/css/font/image”) files into the back-end Grails project.