Java Filter For Logstash
So to answer this, I found this wonderful tutorial from Elastc.co:
Shows the steps to create a new gem and use it as a filter for Logstash later on.
https://www.elastic.co/guide/en/logstash/current/_how_to_write_a_logstash_filter_plugin.html
Orrr to answer your original question,
you can include a JAR in your ruby code, but you need to be using jruby,
see instructions here on how to access java code from JARs in JRuby:
https://github.com/jruby/jruby/wiki/CallingJavaFromJRuby#from-jar-files
To use resources within a jar file from JRuby, the jar file must either be on the classpath or be made available with the require method:
require 'path/to/mycode.jar'This require makes the resources in mycode.jar discoverable by later commands likeimportandinclude_package.Note that loading jar-files via require searches along the
$LOAD_PATHfor them, like it would for normal ruby files.