class ZipkinTracer::Application
Useful methods on the Application
we are instrumenting
Public Class Methods
config(app)
click to toggle source
# File lib/zipkin-tracer/application.rb, line 41 def self.config(app) if app.respond_to?(:config) && app.config.respond_to?(:zipkin_tracer) app.config.zipkin_tracer else {} end end
logger()
click to toggle source
# File lib/zipkin-tracer/application.rb, line 33 def self.logger if defined?(Rails.logger) Rails.logger else Logger.new(STDOUT) end end
routable_request?(env)
click to toggle source
Determines if our framework knows whether the request will be routed to a controller
# File lib/zipkin-tracer/application.rb, line 5 def self.routable_request?(env) return true unless defined?(Rails) # If not running on a Rails app, we can't verify if it is invalid path_info = env[ZipkinTracer::RackHandler::PATH_INFO] || "" http_method = env[ZipkinTracer::RackHandler::REQUEST_METHOD] Rails.application.routes.recognize_path(path_info, method: http_method) true rescue ActionController::RoutingError false end
route(env)
click to toggle source
# File lib/zipkin-tracer/application.rb, line 22 def self.route(env) return nil unless defined?(Rails) req = Rack::Request.new(stub_env(env)) # Returns a string like /some/path/:id Rails.application.routes.router.recognize(req) do |route| return route.path.spec.to_s end rescue nil end
stub_env(env)
click to toggle source
# File lib/zipkin-tracer/application.rb, line 15 def self.stub_env(env) { "PATH_INFO" => env[ZipkinTracer::RackHandler::PATH_INFO].dup, "REQUEST_METHOD" => env[ZipkinTracer::RackHandler::REQUEST_METHOD].dup } end