Contents

module ScoutRails::Instruments
  module SinatraInstruments
    def dispatch_with_scout_instruments!
      scout_controller_action = "Controller/Sinatra/#{scout_sinatra_controller_name(@request)}"
      self.class.trace(scout_controller_action, :uri => @request.path_info) do
        dispatch_without_scout_instruments!
      end
    end
    
    # Iterates through the app's routes, returning the matched route that the request should be 
    # grouped under for the metric name. 
    #
    # If not found, "unknown" is returned. This prevents a metric explosion.
    #
    # Nice to have: substitute the param pattern (([^/?#]+)) w/the named key (the +key+ param of the block).
    def scout_sinatra_controller_name(request)
      name = 'unknown'
      verb = request.request_method if request && request.respond_to?(:request_method) 
      Array(self.class.routes[verb]).each do |pattern, keys, conditions, block|
        if pattern = process_route(pattern, keys, conditions) { pattern.source }
          name = pattern
        end
      end
      name.gsub!(%r{^[/^]*(.*?)[/\$\?]*$}, '\1')
      if verb
        name = [verb,name].join(' ')
      end
      name
    end
  end # SinatraInstruments
end # ScoutRails::Instruments

if defined?(::Sinatra) && defined?(::Sinatra::Base) && Sinatra::Base.private_method_defined?(:dispatch!)
  ScoutRails::Agent.instance.logger.debug "Instrumenting Sinatra"
  ::Sinatra::Base.class_eval do
    include ScoutRails::Tracer
    include ::ScoutRails::Instruments::SinatraInstruments
    alias dispatch_without_scout_instruments! dispatch!
    alias dispatch! dispatch_with_scout_instruments!
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
scout_rails-1.0.8	lib/scout_rails/instruments/sinatra_instruments.rb
scout_rails-1.0.8.pre.3	lib/scout_rails/instruments/sinatra_instruments.rb
scout_rails-1.0.7	lib/scout_rails/instruments/sinatra_instruments.rb