Module: NewRelic::Agent::Instrumentation::ViewComponent

Included in:
ViewComponent::Prepend
Defined in:
lib/new_relic/agent/instrumentation/view_component/instrumentation.rb

Defined Under Namespace

Modules: Chain, Prepend

Constant Summary collapse

INSTRUMENTATION_NAME = 
NewRelic::Agent.base_name(name)

Instance Method Summary collapse

Instance Method Details

#metric_name ⇒ Object 



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# File 'lib/new_relic/agent/instrumentation/view_component/instrumentation.rb', line 23

def metric_name
  # ViewComponent determines a component's identifier differently depending on the version
  # https://github.com/ViewComponent/view_component/pull/2153
  component_identifier = defined?(self.class.source_location) ? self.class.source_location : self.class.identifier

  "View/#{metric_path(component_identifier)}/#{self.class.name}"
rescue => e
  NewRelic::Agent.logger.error('Error identifying View Component metric name', e)

  'View/component'
end

#metric_path(identifier) ⇒ Object 



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# File 'lib/new_relic/agent/instrumentation/view_component/instrumentation.rb', line 35

def metric_path(identifier)
  return 'component' unless identifier

  if (parts = identifier.split('/')).size > 1
    parts[-2..-1].join('/') # Get filepath by assuming the Rails' structure: app/components/home/example_component.rb
  else
    NewRelic::Agent::UNKNOWN_METRIC
  end
end

#render_in_with_tracing(*args) ⇒ Object 



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# File 'lib/new_relic/agent/instrumentation/view_component/instrumentation.rb', line 9

def render_in_with_tracing(*args)
  NewRelic::Agent.record_instrumentation_invocation(INSTRUMENTATION_NAME)

  begin
    segment = NewRelic::Agent::Tracer.start_segment(name: metric_name)
    yield
  rescue => e
    NewRelic::Agent.notice_error(e)
    raise
  ensure
    segment&.finish
  end
end