lib/opentelemetry/context/propagation.rb in opentelemetry-api-0.13.0 vs lib/opentelemetry/context/propagation.rb in opentelemetry-api-0.14.0

@@ -3,20 +3,45 @@
 # Copyright The OpenTelemetry Authors
 #
 # SPDX-License-Identifier: Apache-2.0
 
 require 'opentelemetry/context/propagation/composite_propagator'
-require 'opentelemetry/context/propagation/default_getter'
-require 'opentelemetry/context/propagation/default_setter'
 require 'opentelemetry/context/propagation/noop_extractor'
 require 'opentelemetry/context/propagation/noop_injector'
-require 'opentelemetry/context/propagation/propagation'
 require 'opentelemetry/context/propagation/propagator'
+require 'opentelemetry/context/propagation/text_map_getter'
+require 'opentelemetry/context/propagation/text_map_setter'
+require 'opentelemetry/context/propagation/rack_env_getter'
 
 module OpenTelemetry
   class Context
     # The propagation module contains APIs and utilities to interact with context
     # and propagate across process boundaries.
     module Propagation
+      extend self
+
+      TEXT_MAP_GETTER = TextMapGetter.new
+      TEXT_MAP_SETTER = TextMapSetter.new
+      RACK_ENV_GETTER = RackEnvGetter.new
+
+      private_constant :TEXT_MAP_GETTER, :TEXT_MAP_SETTER, :RACK_ENV_GETTER
+
+      # Returns a {TextMapGetter} instance suitable for reading values from a
+      # hash-like carrier
+      def text_map_getter
+        TEXT_MAP_GETTER
+      end
+
+      # Returns a {TextMapSetter} instance suitable for writing values into a
+      # hash-like carrier
+      def text_map_setter
+        TEXT_MAP_SETTER
+      end
+
+      # Returns a {RackEnvGetter} instance suitable for reading values from a
+      # Rack environment.
+      def rack_env_getter
+        RACK_ENV_GETTER
+      end
     end
   end
 end