add an exception/report handler from inside a recipe

dynamically_add_handler.rb

p = gem_package("nomnomnom-client") { action :nothing }
p.run_action(:install)
Gem.clear_paths

require 'nom_nom_nom'

nomnomnom_servers = []
search(:node, "role:nomnomnom-server") do |server|
  nomnomnom_servers << server[:ipaddress]
end

Chef::Log.debug "NomNomNom server list: '#{nomnomnom_servers.join(', ')}'"

if nomnomnom_servers.empty?
  Chef::Log.info "No NomNomNom server found, not enabling the NomNomNom client"
else
  
  unless Chef::Config.report_handlers.any? { |h| h === NomNomNom::StatusHandler }
    Chef::Config.report_handlers << NomNomNom::StatusHandler.new(nomnomnom_servers.first)
  end

  unless Chef::Config.report_handlers.any? { |h| h === NomNomNom::StatusHandler }
    Chef::Config.exception_handlers << NomNomNom::StatusHandler.new(nomnomnom_servers.first)
  end

end