Looking for an example plugin that uses a Java library

Niels_Basjes · June 18, 2015, 10:13am

Hi ,
I'm looking to see if I can wrap my apache logparsing library (https://github.com/nielsbasjes/logparser/ ) (which was written in Java) to become a plugin for logstash.
The problem I have is that my Ruby knowledge is close to zero (and the plugins are written in ruby )
What I 'm looking for is a working example of a plugin that receives a few parameters and uses a java library to do the actual work.
From there I expect I can figure out what needs to be done and write the plugin.

Can you please giveme some pointers that help me get up and running?
Thanks.

Niels Basjes

Joe_Lawson · June 18, 2015, 1:52pm

Check out jruby-kafka (https://github.com/joekiller/jruby-kafka) which uses java for https://github.com/logstash-plugins/logstash-output-kafka and https://github.com/logstash-plugins/logstash-input-kafka

The keys are that the jruby-kafka library uses

jar-dependencies and ruby-maven. When you run rake setup jar it'll
download the jar dependencies and create a [libname]_jars.rb file within
the root of your library.

github.com

joekiller/jruby-kafka/blob/master/Rakefile#L1-L13


require 'rake/testtask'


Rake::TestTask.new do |t|
t.libs = ['lib', 'test', 'test/util/*']
end


desc "Run tests"
task :default => :test




require 'jars/installer'
task :install_jars do
Jars::Installer.vendor_jars!

On Thu, Jun 18, 2015 at 9:48 AM, Joe Lawson <
jlawson@opensourceconnections.com> wrote:

Niels_Basjes · June 19, 2015, 7:07pm

Thanks. This looks really helpful.