Module: OpenTelemetry::Instrumentation::Que::Patches::QueJob::ClassMethods

Defined in:
lib/opentelemetry/instrumentation/que/patches/que_job.rb

Overview

Module to prepend to Que singleton class

Instance Method Summary collapse

Instance Method Details

#enqueue(*args, tags: nil, **arg_opts) ⇒ Object 



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# File 'lib/opentelemetry/instrumentation/que/patches/que_job.rb', line 21

def enqueue(*args, tags: nil, **arg_opts)
  tracer = Que::Instrumentation.instance.tracer
  otel_config = Que::Instrumentation.instance.config

  tracer.in_span('send', kind: :producer) do |span|
    # Que doesn't have a good place to store metadata. There are
    # basically two options: the job payload and the job tags.
    #
    # Using the job payload is very brittle. We'd have to modify
    # existing Hash arguments or add a new argument when there are
    # no arguments we can modify. If the server side is not using
    # this instrumentation yet (e.g. old jobs before the
    # instrumentation was added or when instrumentation is being
    # added to client side first) then the server can error out due
    # to unexpected payload.
    #
    # The second option (which we are using here) is to use tags.
    # They also are not meant for tracing information but they are
    # much safer to use than modifying the payload.
    if otel_config[:propagation_style] != :none
      tags ||= []
      OpenTelemetry.propagation.inject(tags, setter: TagSetter)
    end

    job = super(*args, tags: tags, **arg_opts)

    span.name = "#{job.que_attrs[:job_class]} send"
    span.add_attributes(QueJob.job_attributes(job))

    job
  end
end