debian-mirror-gitlab/elasticsearch-rails/lib/elasticsearch/rails/instrumentation/log_subscriber.rb

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2019-12-05 17:51:33 +05:30
module Elasticsearch
module Rails
module Instrumentation
# A log subscriber to attach to Elasticsearch related events
#
# @see https://github.com/rails/rails/blob/master/activerecord/lib/active_record/log_subscriber.rb
#
class LogSubscriber < ActiveSupport::LogSubscriber
def self.runtime=(value)
Thread.current["elasticsearch_runtime"] = value
end
def self.runtime
Thread.current["elasticsearch_runtime"] ||= 0
end
def self.reset_runtime
rt, self.runtime = runtime, 0
rt
end
# Intercept `search.elasticsearch` events, and display them in the Rails log
#
def search(event)
self.class.runtime += event.duration
return unless logger.debug?
payload = event.payload
name = "#{payload[:klass]} #{payload[:name]} (#{event.duration.round(1)}ms)"
search = payload[:search].inspect.gsub(/:(\w+)=>/, '\1: ')
debug %Q| #{color(name, GREEN, true)} #{colorize_logging ? "\e[2m#{search}\e[0m" : search}|
end
end
end
end
end
Elasticsearch::Rails::Instrumentation::LogSubscriber.attach_to :elasticsearch