Class: ScoutApm::LayerConverters::MetricConverter

Inherits:
ConverterBase
  • Object
show all
Defined in:
lib/scout_apm/layer_converters/metric_converter.rb

Constant Summary

Constants inherited from ConverterBase

ConverterBase::MAX_METRICS

Instance Attribute Summary

Attributes inherited from ConverterBase

#context, #layer_finder, #request, #root_layer

Instance Method Summary collapse

Methods inherited from ConverterBase

#attach_backtraces, #initialize, #limited?, #make_meta_options, #make_meta_options_desc_hash, #make_meta_options_scope, #over_metric_limit?, #scope_layer, #skip_layer?, #store_aggregate_metric, #store_backtrace, #store_specific_metric, #subscope_name, #subscoped?

Constructor Details

This class inherits a constructor from ScoutApm::LayerConverters::ConverterBase

Instance Method Details

#record! ⇒ Object 



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# File 'lib/scout_apm/layer_converters/metric_converter.rb', line 39

def record!
  @store.track!(@metrics)
  @metrics  # this result must be returned so it can be accessed by transaction callback extensions
end

#register_hooks(walker) ⇒ Object 



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# File 'lib/scout_apm/layer_converters/metric_converter.rb', line 11

def register_hooks(walker)
  super

  @metrics = {}

  return unless scope_layer

  walker.on do |layer|
    next if skip_layer?(layer)

    meta_options = if layer == scope_layer # We don't scope the controller under itself
                    {}
                  else
                    {:scope => scope_layer.legacy_metric_name}
                  end

    # we don't need to use the full metric name for scoped metrics as we only display metrics aggregrated
    # by type.
    metric_name = meta_options.has_key?(:scope) ? layer.type : layer.legacy_metric_name

    meta = MetricMeta.new(metric_name, meta_options)
    @metrics[meta] ||= MetricStats.new( meta_options.has_key?(:scope) )

    stat = @metrics[meta]
    stat.update!(layer.total_call_time, layer.total_exclusive_time)
  end
end