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author | Ivan Topolnjak <ivantopo@gmail.com> | 2013-11-28 09:51:51 -0300 |
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committer | Ivan Topolnjak <ivantopo@gmail.com> | 2013-11-28 09:51:51 -0300 |
commit | b80e4bd135ed50b01def5a4c2f7c42983efb54fd (patch) | |
tree | 86454c78b718d9d2657e889bf4043d83e3c60311 /kamon-spray/src/main/scala/spray/can/client/ClientRequestTracing.scala | |
parent | f4ad78202f7a2c5eb2db045416c1d96ca2b9e3b3 (diff) | |
download | Kamon-b80e4bd135ed50b01def5a4c2f7c42983efb54fd.tar.gz Kamon-b80e4bd135ed50b01def5a4c2f7c42983efb54fd.tar.bz2 Kamon-b80e4bd135ed50b01def5a4c2f7c42983efb54fd.zip |
initial adjustments to allow recording trace segments
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 | 96 |
1 files changed, 96 insertions, 0 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 new file mode 100644 index 00000000..e81dc0a4 --- /dev/null +++ b/kamon-spray/src/main/scala/spray/can/client/ClientRequestTracing.scala @@ -0,0 +1,96 @@ +/* =================================================== + * Copyright © 2013 the kamon project <http://kamon.io/> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ========================================================== */ + +package spray.can.client + +import org.aspectj.lang.annotation._ +import org.aspectj.lang.ProceedingJoinPoint +import spray.http.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.Trace.SegmentCompletionHandle + +trait SegmentCompletionHandleAware { + var completionHandle: Option[SegmentCompletionHandle] +} + +trait ContextAndSegmentCompletionAware extends ContextAware with SegmentCompletionHandleAware + +@Aspect +class SprayOpenRequestContextTracing { + + @DeclareMixin("spray.can.client.HttpHostConnector.RequestContext") + def mixinContextAwareToRequestContext: ContextAndSegmentCompletionAware = new ContextAndSegmentCompletionAware { + def 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 = {} + + @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.HttpHostConnectionSlot.dispatchToCommander(..)) && args(requestContext, message)") + def dispatchToCommander(requestContext: TimedContextAware, message: Any): Unit = {} + + @Around("dispatchToCommander(requestContext, message)") + def aroundDispatchToCommander(pjp: ProceedingJoinPoint, requestContext: ContextAndSegmentCompletionAware, message: Any) = { + println("Completing the request with context: " + requestContext.traceContext) + + requestContext.completionHandle.map(_.complete(Segments.End())) + /*Tracer.context.withValue(requestContext.traceContext) { + requestContext.traceContext.map { + tctx => //tctx.tracer ! WebExternalFinish(requestContext.timestamp) + } + 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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