Module: Mnemosyne::Probes::Msgr::Consumer::Instrumentation

Defined in:
lib/mnemosyne/probes/msgr/consumer.rb

Instance Method Summary collapse

Instance Method Details

#dispatch(message) ⇒ Object 



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# File 'lib/mnemosyne/probes/msgr/consumer.rb', line 16

def dispatch(message)
  route = message.route
  metadata = message.metadata
  headers = metadata.headers || {}
  delivery_info = message.delivery_info

  origin      = headers.delete('mnemosyne.origin')
  transaction = headers.delete('mnemosyne.transaction') do
    ::SecureRandom.uuid
  end

  trace = ::Mnemosyne::Instrumenter.trace(
    NAME,
    transaction:,
    origin:
  )

  if trace
    trace.meta[:properties] = {
      content_type: metadata.content_type,
      priority: metadata.priority,
      headers: metadata.headers,
      type: metadata.type,
      reply_to: metadata.reply_to,
      correlation_id: metadata.correlation_id,
      message_id: metadata.message_id,
      app_id: metadata.app_id
    }

    trace.meta[:delivery_info] = {
      consumer_tag: delivery_info.consumer_tag,
      redelivered: delivery_info.redelivered?,
      routing_key: delivery_info.routing_key,
      exchange: delivery_info.exchange
    }

    trace.meta[:route] = {
      consumer: route.consumer,
      action: route.action
    }

    trace.start!
  end

  super
rescue StandardError, LoadError, SyntaxError => e
  trace&.attach_error(e)
  raise
ensure
  if trace
    trace.submit
    trace.release
  end
end