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Contents
require 'ddtrace/contrib/action_view/ext'
module Datadog
module Contrib
module ActionView
module Instrumentation
# Legacy instrumentation for partial rendering for Rails < 4
module PartialRenderer
def render(*args, &block)
datadog_tracer.trace(
Ext::SPAN_RENDER_PARTIAL,
span_type: Datadog::Ext::HTTP::TEMPLATE
) do |span|
with_datadog_span(span) { super(*args) }
end
end
def render_partial(*args)
begin
template = datadog_template(*args)
datadog_render_partial(template)
rescue StandardError => e
Datadog.logger.debug(e.message)
end
# execute the original function anyway
super(*args)
end
def datadog_render_partial(template)
template_name = Utils.normalize_template_name(template.try('identifier'))
if template_name
active_datadog_span.resource = template_name
active_datadog_span.set_tag(
Ext::TAG_TEMPLATE_NAME,
template_name
)
# Measure service stats
Contrib::Analytics.set_measured(active_datadog_span)
end
end
private
attr_accessor :active_datadog_span
def datadog_tracer
Datadog.configuration[:action_view][:tracer]
end
def with_datadog_span(span)
self.active_datadog_span = span
yield
ensure
self.active_datadog_span = nil
end
# Rails < 4 partial rendering
# ActiveSupport events are used instead for Rails >= 4
module RailsLessThan4
include PartialRenderer
def datadog_template(*args)
@template
end
end
end
end
end
end
end
Version data entries
21 entries across 21 versions & 2 rubygems