diff options
Diffstat (limited to 'kamon-spray/src/main/scala/spray/can/client/ClientRequestTracing.scala')
-rw-r--r-- | kamon-spray/src/main/scala/spray/can/client/ClientRequestTracing.scala | 91 |
1 files changed, 40 insertions, 51 deletions
diff --git a/kamon-spray/src/main/scala/spray/can/client/ClientRequestTracing.scala b/kamon-spray/src/main/scala/spray/can/client/ClientRequestTracing.scala index e81dc0a4..ab6f1f9c 100644 --- a/kamon-spray/src/main/scala/spray/can/client/ClientRequestTracing.scala +++ b/kamon-spray/src/main/scala/spray/can/client/ClientRequestTracing.scala @@ -18,79 +18,68 @@ package spray.can.client import org.aspectj.lang.annotation._ import org.aspectj.lang.ProceedingJoinPoint -import spray.http.HttpRequest +import spray.http.{HttpMessageEnd, HttpRequest} import spray.http.HttpHeaders.Host -import kamon.trace._ -import spray.http.HttpRequest -import kamon.trace.TraceContext -import kamon.trace.Segments.{HttpClientRequest, Start} +import kamon.trace.{TraceContext, Trace, Segments} +import kamon.trace.Segments.{ContextAndSegmentCompletionAware, HttpClientRequest} import kamon.trace.Trace.SegmentCompletionHandle -trait SegmentCompletionHandleAware { - var completionHandle: Option[SegmentCompletionHandle] -} - -trait ContextAndSegmentCompletionAware extends ContextAware with SegmentCompletionHandleAware - @Aspect -class SprayOpenRequestContextTracing { +class ClientRequestTracing { @DeclareMixin("spray.can.client.HttpHostConnector.RequestContext") - def mixinContextAwareToRequestContext: ContextAndSegmentCompletionAware = new ContextAndSegmentCompletionAware { - def traceContext: Option[TraceContext] = Trace.context() + def mixin: ContextAndSegmentCompletionAware = new ContextAndSegmentCompletionAware { + val traceContext: Option[TraceContext] = Trace.context() var completionHandle: Option[SegmentCompletionHandle] = None } -} -@Aspect -class SprayServerInstrumentation { @Pointcut("execution(spray.can.client.HttpHostConnector.RequestContext.new(..)) && this(ctx) && args(request, *, *, *)") - def requestRecordInit(ctx: ContextAndSegmentCompletionAware, request: HttpRequest): Unit = {} + def requestContextCreation(ctx: ContextAndSegmentCompletionAware, request: HttpRequest): Unit = {} + + @After("requestContextCreation(ctx, request)") + def afterRequestContextCreation(ctx: ContextAndSegmentCompletionAware, request: HttpRequest): Unit = { + // The read to ctx.completionHandle should take care of initializing the aspect timely. + if(ctx.completionHandle.isEmpty) { + val requestAttributes = Map[String, String]( + "host" -> request.header[Host].map(_.value).getOrElse("unknown"), + "path" -> request.uri.path.toString(), + "method" -> request.method.toString() + ) + val completionHandle = Trace.startSegment(category = HttpClientRequest, attributes = requestAttributes) + ctx.completionHandle = Some(completionHandle) + } + } - @After("requestRecordInit(ctx, request)") - def whenCreatedRequestRecord(ctx: ContextAndSegmentCompletionAware, request: HttpRequest): Unit = { - val completionHandle = Trace.startSegment(Segments.Start(HttpClientRequest)) - // Necessary to force the initialization of TracingAwareRequestContext at the moment of creation. - ctx.traceContext - ctx.completionHandle = Some(completionHandle) + @Pointcut("execution(* spray.can.client.HttpHostConnector.RequestContext.copy(..)) && this(old)") + def copyingRequestContext(old: ContextAndSegmentCompletionAware): Unit = {} + + @Around("copyingRequestContext(old)") + def aroundCopyingRequestContext(pjp: ProceedingJoinPoint, old: ContextAndSegmentCompletionAware) = { + Trace.withContext(old.traceContext) { + pjp.proceed() + } } + @Pointcut("execution(* spray.can.client.HttpHostConnectionSlot.dispatchToCommander(..)) && args(requestContext, message)") - def dispatchToCommander(requestContext: TimedContextAware, message: Any): Unit = {} + def dispatchToCommander(requestContext: ContextAndSegmentCompletionAware, message: Any): Unit = {} @Around("dispatchToCommander(requestContext, message)") def aroundDispatchToCommander(pjp: ProceedingJoinPoint, requestContext: ContextAndSegmentCompletionAware, message: Any) = { - println("Completing the request with context: " + requestContext.traceContext) + requestContext.traceContext match { + case ctx @ Some(_) => + Trace.withContext(ctx) { + if(message.isInstanceOf[HttpMessageEnd]) + requestContext.completionHandle.map(_.complete(Segments.End())) - requestContext.completionHandle.map(_.complete(Segments.End())) - /*Tracer.context.withValue(requestContext.traceContext) { - requestContext.traceContext.map { - tctx => //tctx.tracer ! WebExternalFinish(requestContext.timestamp) - } - pjp.proceed() - }*/ + pjp.proceed() + } + case None => pjp.proceed() + } } - @Pointcut("execution(* spray.can.client.HttpHostConnector.RequestContext.copy(..)) && this(old)") - def copyingRequestContext(old: TimedContextAware): Unit = {} - - @Around("copyingRequestContext(old)") - def aroundCopyingRequestContext(pjp: ProceedingJoinPoint, old: TimedContextAware) = { - println("Instrumenting the request context copy.") - /*Tracer.traceContext.withValue(old.traceContext) { - pjp.proceed() - }*/ - } -} -@Aspect -class SprayRequestContextTracing { - - @DeclareMixin("spray.can.client.HttpHostConnector.RequestContext") - def mixin: ContextAware = new ContextAware { - val traceContext: Option[TraceContext] = Trace.context() - } }
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