Increment a statsd counter for each metric received (not yet working!)

statsd_increment_counter.rb

# Increment a counter in Statsd
# ==
#
# Copyright 2013 Bethany Erskine bethany@paperlesspost.com
#

require 'rubygems' if RUBY_VERSION < '1.9.0'
require 'statsd'

module Sensu
  module Extension
    class StastdIncrementCounter < Handler
      def name
        'statsd_increment_counter'
      end

      def description
        'sends event output to statsd'
      end

      def definition
      {
        :type => 'handler',
        :name => name
      }
      end

      def run(event, settings, &block)
        opts = settings['statsd']

        opts['statsd_host'] ||= "localhost"
        opts['statsd_port'] ||= 8125

        metric_count = event['check']['output'].split("\n").count

        # need to pull these from a snippet or dynamically set them
        namespace = "sensu"
        key = "metric_count"
        statsd = Statsd.new(opts['statsd_host'], opts['statsd_port']).tap{
            |sd| sd.namespace = namespace }

        statsd.increment key,metric_count

        block.call("incremented counter #{namespace}.#{key} #{metric_count} times", 0)
      end
    end
  end
end