Contents

# frozen_string_literal: true

require 'ddtrace/contrib/analytics'

module Datadog
  module Contrib
    module Sneakers
      # Tracer is a Sneakers server-side middleware which traces executed jobs
      class Tracer
        def initialize(app, *args)
          @app = app
          @args = args
        end

        def call(deserialized_msg, delivery_info, metadata, handler)
          trace_options = {
            service:   configuration[:service_name],
            span_type: Datadog::Ext::AppTypes::WORKER
          }
          request_span = tracer.trace(Ext::SPAN_JOB, trace_options)

          # Set analytics sample rate
          if Datadog::Contrib::Analytics.enabled?(configuration[:analytics_enabled])
            Datadog::Contrib::Analytics.set_sample_rate(request_span, configuration[:analytics_sample_rate])
          end

          # Measure service stats
          Contrib::Analytics.set_measured(request_span)

          request_span.resource = @app.to_proc.binding.eval('self.class').to_s
          request_span.set_tag(Ext::TAG_JOB_ROUTING_KEY, delivery_info.routing_key)
          request_span.set_tag(Ext::TAG_JOB_QUEUE, delivery_info.consumer.queue.name)

          if configuration[:tag_body]
            request_span.set_tag(Ext::TAG_JOB_BODY, deserialized_msg)
          end

          @app.call(deserialized_msg, delivery_info, metadata, handler)
        rescue StandardError => e
          request_span.set_error(e) unless request_span.nil?
          raise e
        ensure
          request_span.finish if request_span
        end

        private

        def tracer
          configuration[:tracer]
        end

        def configuration
          Datadog.configuration[:sneakers]
        end
      end
    end
  end
end

Version data entries

5 entries across 5 versions & 2 rubygems

Version	Path
ddtrace-0.42.0	lib/ddtrace/contrib/sneakers/tracer.rb
ddtrace-0.41.0	lib/ddtrace/contrib/sneakers/tracer.rb
ls-trace-0.2.0	lib/ddtrace/contrib/sneakers/tracer.rb
ddtrace-0.40.0	lib/ddtrace/contrib/sneakers/tracer.rb
ddtrace-0.39.0	lib/ddtrace/contrib/sneakers/tracer.rb