Formatter woes

msgpack.rb

require 'msgpack'

module Goliath
  module Rack
    module Formatters
      # A MessagePack formatter. 
      # @example
      #   use Goliath::Rack::Formatters::MSGPACK
      class MSGPACK
        include AsyncMiddleware

        def post_process(env, status, headers, body)
          if msgpack_response?(headers)
            body = [MessagePack.pack(body)]
          end
          [status, headers, body]
        end

        def msgpack_response?(headers)
          headers['Content-Type'] =~ %r{^application/msgpack}
        end
      end
    end
  end
end

rpm_analytics.rb

require 'rubygems'
require 'bundler'
Bundler.setup(:default)
require 'goliath'
require 'wonkavision'
require "wonkavision/analytics/persistence/em_mongo"

dir = File.dirname(__FILE__)
appdir = File.join(dir,"app")

#load the msgpack formatter
require File.join( dir, "goliath/rack/formatters/msgpack")

class Query < Goliath::API
  
  def execute_query(env)
    {:some => :hash}
  end            
                      
  def response(env)
    cellset = execute_query(env)
    [200, {}, cellset]
  end
end

class RpmAnalytics < Goliath::API
  use Goliath::Rack::Tracer
  use Goliath::Rack::DefaultMimeType
  use Goliath::Rack::Render, 'json', 'msgpack'
  use Goliath::Rack::Heartbeat
  use Goliath::Rack::Params

  get '/query/:aggregation' do
    run Query.new
  end

  get '/*glob' do
    run Proc.new { |env| [404,{},"Not Found"] }
  end

end