don't change operation name for not-found

Author: bplommer

src/main/scala/kamon/http4s/middleware/client/KamonSupport.scala

@@ -56,17 +56,15 @@ object KamonSupport {
     for {
       requestHandler  <- Resource.liftF(F.delay(instrumentation.createHandler(getRequestBuilder(request), ctx)))
       response        <- underlying.run(requestHandler.request).attempt
-      trackedResponse <- Resource.liftF(handleResponse(response, requestHandler, instrumentation.settings))
+      trackedResponse <- Resource.liftF(handleResponse(response, requestHandler))
     } yield trackedResponse
 
   def handleResponse[F[_]](
                        response: Either[Throwable, Response[F]],
                        requestHandler: HttpClientInstrumentation.RequestHandler[Request[F]],
-                       settings: HttpClientInstrumentation.Settings
                      )(implicit F:Sync[F]): F[Response[F]] =
       response match {
         case Right(res) =>
-          if(res.status.code == 404) requestHandler.span.name(settings.defaultOperationName)
           requestHandler.processResponse(getResponseBuilder(res))
           F.delay(res)
         case Left(error) =>

src/test/scala/kamon/http4s/ClientInstrumentationSpec.scala

@@ -104,8 +104,7 @@ class ClientInstrumentationSpec extends WordSpec
 
       eventually(timeout(2 seconds)) {
         val span = testSpanReporter().nextSpan().value
-        //TODO what should be client not found oper name, settings provide no default for clients
-        span.operationName shouldBe "http.client.request"
+        span.operationName shouldBe "/tracing/not-found"
         span.kind shouldBe Span.Kind.Client
         span.metricTags.get(plain("component")) shouldBe "http4s.client"
         span.metricTags.get(plain("http.method")) shouldBe "GET"