Module: Datadog::Tracing::Contrib::ActiveSupport::Cache::Patcher

Includes:
Patcher
Defined in:
lib/datadog/tracing/contrib/active_support/cache/patcher.rb

Overview

Patcher enables patching of ‘active_support’ module.

Class Method Summary collapse

Methods included from Patcher

included

Class Method Details

.cache_store_class(meth) ⇒ Object

This method is overwritten by ‘datadog/tracing/contrib/active_support/cache/redis.rb` with more complex behavior.



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# File 'lib/datadog/tracing/contrib/active_support/cache/patcher.rb', line 39

def cache_store_class(meth)
  [::ActiveSupport::Cache::Store]
end

.patch ⇒ Object 



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# File 'lib/datadog/tracing/contrib/active_support/cache/patcher.rb', line 22

def patch
  Events.subscribe!

  # Backfill the `:store` key in the ActiveSupport event payload for older Rails.
  if Integration.version < Gem::Version.new('6.1.0')
    ::ActiveSupport::Cache::Store.prepend(Cache::Instrumentation::Store)
  end

  # DEV-3.0: Backwards compatibility code for the 2.x gem series.
  # DEV-3.0: See documentation at {Datadog::Tracing::Contrib::ActiveSupport::Cache::Instrumentation}
  # DEV-3.0: for the complete information about this backwards compatibility code.
  patch_legacy_cache_store
end

.patch_legacy_cache_store ⇒ Object 



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# File 'lib/datadog/tracing/contrib/active_support/cache/patcher.rb', line 43

def patch_legacy_cache_store
  cache_store_class(:read_multi).each { |clazz| clazz.prepend(Cache::Instrumentation::ReadMulti) }
  cache_store_class(:fetch).each { |clazz| clazz.prepend(Cache::Instrumentation::Fetch) }
  cache_store_class(:fetch_multi).each { |clazz| clazz.prepend(Cache::Instrumentation::FetchMulti) }
end

.target_version ⇒ Object 



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# File 'lib/datadog/tracing/contrib/active_support/cache/patcher.rb', line 18

def target_version
  Integration.version
end