Sha256: e0b2338edf2f7152394697666cc6d91480594a586a3b80bddb8bd0a66cadf08f
Contents?: true
Size: 1.76 KB
Versions: 9
Compression:
Stored size: 1.76 KB
Contents
# frozen_string_literal: true
# Copyright The OpenTelemetry Authors
#
# SPDX-License-Identifier: Apache-2.0
require 'opentelemetry'
require 'opentelemetry-instrumentation-base'
module OpenTelemetry
module Instrumentation
# Contains the OpenTelemetry instrumentation for the Rack gem
module Rack
extend self
CURRENT_SPAN_KEY = Context.create_key('current-span')
private_constant :CURRENT_SPAN_KEY
# Returns the current span from the current or provided context
#
# @param [optional Context] context The context to lookup the current
# {Span} from. Defaults to Context.current
def current_span(context = nil)
context ||= Context.current
context.value(CURRENT_SPAN_KEY) || OpenTelemetry::Trace::Span::INVALID
end
# Returns a context containing the span, derived from the optional parent
# context, or the current context if one was not provided.
#
# @param [optional Context] context The context to use as the parent for
# the returned context
def context_with_span(span, parent_context: Context.current)
parent_context.set_value(CURRENT_SPAN_KEY, span)
end
# Activates/deactivates the Span within the current Context, which makes the "current span"
# available implicitly.
#
# On exit, the Span that was active before calling this method will be reactivated.
#
# @param [Span] span the span to activate
# @yield [span, context] yields span and a context containing the span to the block.
def with_span(span)
Context.with_value(CURRENT_SPAN_KEY, span) { |c, s| yield s, c }
end
end
end
end
require_relative 'rack/instrumentation'
require_relative 'rack/util'
require_relative 'rack/version'
Version data entries
9 entries across 9 versions & 1 rubygems