Class: OpenTelemetry::Propagator::OTTrace::TextMapInjector

Inherits:
Object
  • Object
show all
Defined in:
lib/opentelemetry/propagator/ottrace/text_map_injector.rb

Overview

Injects context into carriers using the OTTrace format

Constant Summary collapse

TRACE_ID_64_BIT_WIDTH = 
64 / 4

Instance Method Summary collapse

Constructor Details

#initialize(default_setter: Context::Propagation.text_map_setter) ⇒ TextMapInjector

Returns a new TextMapInjector that injects context using the specified setter

Parameters:

  • default_setter (optional Setter) (defaults to: Context::Propagation.text_map_setter) —

    The default setter used to write context into a carrier during inject. Defaults to a Context:Propagation::TextMapSetter instance.



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# File 'lib/opentelemetry/propagator/ottrace/text_map_injector.rb', line 28

def initialize(default_setter: Context::Propagation.text_map_setter)
  @default_setter = default_setter
end

Instance Method Details

#inject(carrier, context, setter = nil) ⇒ Object

Parameters:

  • carrier (Object) —

    to update with context.

  • context (Context) —

    The active Context.

  • setter (optional Setter) (defaults to: nil) —

    If the optional setter is provided, it will be used to write context into the carrier, otherwise the default setter will be used.



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# File 'lib/opentelemetry/propagator/ottrace/text_map_injector.rb', line 37

def inject(carrier, context, setter = nil)
  setter ||= default_setter
  span_context = Trace.current_span(context).context
  return unless span_context.valid?

  inject_span_context(span_context: span_context, carrier: carrier, setter: setter)
  inject_baggage(context: context, carrier: carrier, setter: setter)

  nil
end