class Labkit::Tracing::Rails::ActiveSupport::ActiveSupportSubscriber
ActiveSupport
bridges action active support notifications to the distributed tracing subsystem
Constants
- CACHE_DELETE_TOPIC
- CACHE_FETCH_HIT_TOPIC
- CACHE_GENERATE_TOPIC
- CACHE_READ_TOPIC
- CACHE_WRITE_TOPIC
Public Class Methods
instrument()
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Instruments Rails
ActiveSupport
events for opentracing. Returns a lambda, which, when called will unsubscribe from the notifications
# File lib/labkit/tracing/rails/active_support/subscriber.rb, line 20 def self.instrument subscriptions = [ ::ActiveSupport::Notifications.subscribe(CACHE_READ_TOPIC, CacheReadInstrumenter.new), ::ActiveSupport::Notifications.subscribe(CACHE_GENERATE_TOPIC, CacheGenerateInstrumenter.new), ::ActiveSupport::Notifications.subscribe(CACHE_FETCH_HIT_TOPIC, CacheFetchHitInstrumenter.new), ::ActiveSupport::Notifications.subscribe(CACHE_WRITE_TOPIC, CacheWriteInstrumenter.new), ::ActiveSupport::Notifications.subscribe(CACHE_DELETE_TOPIC, CacheDeleteInstrumenter.new), ] create_unsubscriber subscriptions end