Class: Datadog::Tracing::Contrib::Que::Tracer

Inherits:
Object
  • Object
show all
Defined in:
lib/datadog/tracing/contrib/que/tracer.rb

Overview

Tracer is a Que’s server-side middleware which traces executed jobs

Instance Method Summary collapse

Instance Method Details

#call(job) ⇒ Object 



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# File 'lib/datadog/tracing/contrib/que/tracer.rb', line 11

def call(job)
  trace_options = {
    service: configuration[:service_name],
    type: Tracing::Metadata::Ext::AppTypes::TYPE_WORKER,
    on_error: configuration[:on_error]
  }

  Tracing.trace(Ext::SPAN_JOB, **trace_options) do |request_span|
    request_span.set_tag(Contrib::Ext::Messaging::TAG_SYSTEM, Ext::TAG_COMPONENT)

    request_span.resource = job.class.name.to_s

    request_span.set_tag(Tracing::Metadata::Ext::TAG_COMPONENT, Ext::TAG_COMPONENT)
    request_span.set_tag(Tracing::Metadata::Ext::TAG_OPERATION, Ext::TAG_OPERATION_JOB)

    request_span.set_tag(Ext::TAG_JOB_QUEUE, job.que_attrs[:queue])
    request_span.set_tag(Ext::TAG_JOB_ID, job.que_attrs[:id])
    request_span.set_tag(Ext::TAG_JOB_PRIORITY, job.que_attrs[:priority])
    request_span.set_tag(Ext::TAG_JOB_ERROR_COUNT, job.que_attrs[:error_count])
    request_span.set_tag(Ext::TAG_JOB_RUN_AT, job.que_attrs[:run_at])
    request_span.set_tag(Ext::TAG_JOB_EXPIRED_AT, job.que_attrs[:expired_at])
    request_span.set_tag(Ext::TAG_JOB_FINISHED_AT, job.que_attrs[:finished_at])
    request_span.set_tag(Ext::TAG_JOB_ARGS, job.que_attrs[:args]) if configuration[:tag_args]
    request_span.set_tag(Ext::TAG_JOB_DATA, job.que_attrs[:data]) if configuration[:tag_data]

    request_span.set_tag(Tracing::Metadata::Ext::TAG_KIND, Tracing::Metadata::Ext::SpanKind::TAG_CONSUMER)

    set_sample_rate(request_span)
    Contrib::Analytics.set_measured(request_span)

    yield
  end
end