MicroBean Maven CDI

This is the ninth of a series of posts on some of the personal projects I’ve been working on.  As I hope you’ll see, they all fit together.  The previous post covered MicroBean Jersey Container Grizzly2 HTTP CDI Extension.  The next post covers MicroBean Commons CLI.

This post covers MicroBean Maven CDI.  Its website is here, its source code is here and its binaries are available from Maven Central.

MicroBean Maven CDI adapts the inner workings of the Maven Artifact Resolver project so that it can be exposed in a CDI 2.0 environment.

To install MicroBean Maven CDI, place it on your classpath.

The Maven Artifact Resolver project is the Maven-as-build-tool-independent “guts” inside of Maven responsible for transitive dependency resolution and management.  (I’ve written before on this topic.)  MicroBean Maven CDI makes this tooling available inside a CDI 2.0 environment (including Java SE CDI 2.0 applications), along with the common Maven conventions of user-specific settings.xml files and local Maven repositories.  Any interesting magic that it performs is really confined to the translation of Plexus annotations such as Component and Requirement to CDI injection points, which it does by virtue of the power of the CDI portable extension SPI.

There are many ways this could be useful.  Consider—from within your CDI bean—taking in a Maven-style groupId:artifactId:version String identifier and having it resolve to a local file automatically if that file is not already present in exactly the same way that Maven resolves it (jokes about “downloading the Internet” are hereby routed to /dev/null, as usually these indicate an ignorance of the (well-documented) updatePolicy element).  As we’ll see, there are even more powerful things you can do with these capabilities.  I’ve touched on some of them earlier.

In the next post, we’ll touch on the integration of the Apache Commons CLI project with CDI 2.0 by way of MicroBean Commons CLI.


Author: Laird Nelson

Devoted husband and father; working on Helidon at the intersection of Java, Jakarta EE, architecture, Kubernetes and microservices at Oracle; open source guy; Hammond B3 player and Bainbridge Islander.

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