module OneApm::Rack::MiddlewareTracing
Constants
- OA_TXN_STARTED_KEY
Public Instance Methods
_oa_has_middleware_tracing()
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# File lib/one_apm/rack/middleware_tracing.rb, line 28 def _oa_has_middleware_tracing true end
build_transaction_options(env, first_middleware)
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# File lib/one_apm/rack/middleware_tracing.rb, line 32 def build_transaction_options(env, first_middleware) opts = transaction_options opts = merge_first_middleware_options(opts, env) if first_middleware opts end
call(env)
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# File lib/one_apm/rack/middleware_tracing.rb, line 56 def call(env) first_middleware = note_transaction_started(env) state = OneApm::TransactionState.tl_get begin options = build_transaction_options(env, first_middleware) current_transaction = OneApm::Transaction.start(state, category, options) current_transaction.ignore_frames << options[:transaction_name] if respond_to?(:middleware_ignore?) && middleware_ignore? events.notify(:before_call, env) if first_middleware result = (target == self) ? traced_call(env) : target.call(env) capture_http_response_code(state, result) events.notify(:after_call, env, result) if first_middleware result rescue Exception => e OneApm::Manager.notice_error(e) raise e ensure OneApm::Transaction.stop(state) end end
capture_http_response_code(state, result)
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# File lib/one_apm/rack/middleware_tracing.rb, line 50 def capture_http_response_code(state, result) if result.is_a?(Array) && state.current_transaction state.current_transaction.http_response_code = result[0] end end
events()
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# File lib/one_apm/rack/middleware_tracing.rb, line 82 def events OneApm::Manager.agent.events end
merge_first_middleware_options(opts, env)
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# File lib/one_apm/rack/middleware_tracing.rb, line 38 def merge_first_middleware_options(opts, env) opts.merge( :request => ::Rack::Request.new(env), :apdex_start_time => OneApm::Agent::Instrumentation::QueueTime.parse_frontend_timestamp(env) ) end
note_transaction_started(env)
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# File lib/one_apm/rack/middleware_tracing.rb, line 45 def note_transaction_started(env) env[OA_TXN_STARTED_KEY] = true unless env[OA_TXN_STARTED_KEY] end