Adjust tracer to use instrumentation library

Author: robertlaurin

sdk/lib/opentelemetry/sdk/trace/tracer.rb

@@ -9,19 +9,19 @@ module SDK
     module Trace
       # {Tracer} is the SDK implementation of {OpenTelemetry::Trace::Tracer}.
       class Tracer < OpenTelemetry::Trace::Tracer
-        attr_reader :resource
+        attr_reader :name
+        attr_reader :version
 
         # @api private
         #
         # Returns a new {Tracer} instance.
         #
-        # @param [Resource] resource Containing name and version arguments supplied to the TracerProvider
+        # @param [InstrumentationLibrary] resource Containing name and version arguments supplied to the TracerProvider
         #
         # @return [Tracer]
         def initialize(name, version)
           @name = name
           @version = version
-          @resource = Resources::Resource.create('name' => name, 'version' => version)
           @instrumentation_library = InstrumentationLibrary.new(name, version)
         end
 
@@ -54,7 +54,8 @@ def internal_create_span(result, name, kind, trace_id, span_id, parent_span_id,
             attributes = attributes&.merge(result.attributes) || result.attributes
             active_trace_config = OpenTelemetry.tracer_provider.active_trace_config
             active_span_processor = OpenTelemetry.tracer_provider.active_span_processor
-            Span.new(context, name, kind, parent_span_id, active_trace_config, active_span_processor, attributes, links, start_timestamp || Time.now, @resource, @instrumentation_library)
+            resource = OpenTelemetry.tracer_provider.resource
+            Span.new(context, name, kind, parent_span_id, active_trace_config, active_span_processor, attributes, links, start_timestamp || Time.now, resource, @instrumentation_library)
           else
             OpenTelemetry::Trace::Span.new(span_context: OpenTelemetry::Trace::SpanContext.new(trace_id: trace_id))
           end

sdk/lib/opentelemetry/sdk/trace/tracer_provider.rb

@@ -13,8 +13,7 @@ class TracerProvider < OpenTelemetry::Trace::TracerProvider
         private_constant(:Key)
 
         attr_accessor :active_trace_config
-        attr_reader :active_span_processor
-        attr_reader :stopped
+        attr_reader :active_span_processor, :stopped, :resource
         alias stopped? stopped
 
         # Returns a new {TracerProvider} instance.
@@ -39,8 +38,7 @@ def initialize(resource = OpenTelemetry::SDK::Resources::Resource.create)
         def tracer(name = nil, version = nil)
           name ||= ''
           version ||= ''
-          resource = @resource.merge(OpenTelemetry::SDK::Resources::Resource.create('name' => name, 'version' => version))
-          @mutex.synchronize { @registry[Key.new(name, version)] ||= Tracer.new(resource) }
+          @mutex.synchronize { @registry[Key.new(name, version)] ||= Tracer.new(name, version) }
         end
 
         # Attempts to stop all the activity for this {Tracer}. Calls

sdk/test/opentelemetry/sdk/trace/tracer_provider_test.rb

@@ -86,7 +86,8 @@
 
     it 'returns a default name-less version-less tracer' do
       tracer = tracer_provider.tracer
-      _(tracer.resource.label_enumerator.to_h).must_equal('name' => '', 'version' => '')
+      _(tracer.name).must_equal('')
+      _(tracer.version).must_equal('')
     end
 
     it 'returns different tracers for different names' do

sdk/test/opentelemetry/sdk/trace/tracer_test.rb

@@ -18,14 +18,6 @@
     ->(trace_id:, span_id:, parent_context:, links:, name:, kind:, attributes:) { Result.new(decision: Decision::RECORD) } # rubocop:disable Lint/UnusedBlockArgument
   end
 
-  describe '#resource' do
-    let(:resource) { OpenTelemetry::SDK::Resources::Resource.create('name' => 'component', 'version' => 'semver:1.0') }
-
-    it 'reflects the resource passed in' do
-      _(Tracer.new(resource).resource).must_equal(resource)
-    end
-  end
-
   describe '#start_root_span' do
     it 'provides a default name' do
       _(tracer.start_root_span(nil).name).wont_be_nil