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module Gitlab
module Metrics
module Subscribers
# Class for tracking method call timings.
class MethodCall < ActiveSupport::Subscriber
attach_to :method_call
SERIES = 'method_calls'
def instance_method(event)
return unless current_transaction
label = "#{event.payload[:module].name}##{event.payload[:name]}"
add_metric(label, event.duration)
end
def class_method(event)
return unless current_transaction
label = "#{event.payload[:module].name}.#{event.payload[:name]}"
add_metric(label, event.duration)
end
private
def add_metric(label, duration)
file, line = Metrics.last_relative_application_frame
values = { duration: duration, file: file, line: line }
current_transaction.add_metric(SERIES, values, method: label)
end
def current_transaction
Transaction.current
end
end
end
end
end
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