Jolokia

The Jolokia Ruby library provides a ruby API to the to the Jolokia Agent.

Add this line to your application's Gemfile:

gem 'jolokia'

And then execute:

$ bundle

Or install it yourself as:

$ gem install jolokia

First of all, you need to create an instance of Jolokia::Client to comunicate with the remote Jolokia Agent. You just need to pass the url of the Jolokia Agent to the constructor for creating the client.

jolokia = Jolokia.new(url: 'http://localhost:8080/jolokia')

And then, you can use the created client to read or write the attributes of the MBeans, or execute the operations of the MBeans.

response = jolokia.request(:post, type: 'read',
                                  mbean: 'java.lang:type=Memory',
                                  attribute: 'HeapMemoryUsage')
pp response

# =>
  {"timestamp"=>1340783789,
   "status"=>200,
   "request"=>
    {"mbean"=>"java.lang:type=Memory",
     "attribute"=>"HeapMemoryUsage",
     "type"=>"read"},
   "value"=>
    {"max"=>477233152,
     "committed"=>190382080,
     "init"=>134217728,
     "used"=>116851464}}

• get_attribute(mbean, attribute, path = nil)
• set_attribute(mbean, attribute, value, path = nil)
• execute(mbean, operations, args)

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request