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89 changes: 89 additions & 0 deletions
89
...main/scala/de/innfactory/smithy4play/instrumentation/SmithyPlayRouterInstrumentation.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| package de.innfactory.smithy4play.instrumentation; | ||
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| import static io.opentelemetry.javaagent.bootstrap.Java8BytecodeBridge.currentContext; | ||
| import static io.opentelemetry.javaagent.bootstrap.Java8BytecodeBridge.currentSpan; | ||
| import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.*; | ||
| import static net.bytebuddy.matcher.ElementMatchers.named; | ||
| import static net.bytebuddy.matcher.ElementMatchers.returns; | ||
| import static net.bytebuddy.matcher.ElementMatchers.takesArgument; | ||
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| import io.opentelemetry.api.GlobalOpenTelemetry; | ||
| import io.opentelemetry.api.trace.SpanBuilder; | ||
| import io.opentelemetry.context.Context; | ||
| import io.opentelemetry.context.Scope; | ||
| import io.opentelemetry.api.trace.Span; | ||
| import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter; | ||
| import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation; | ||
| import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer; | ||
| import net.bytebuddy.asm.Advice; | ||
| import net.bytebuddy.description.type.TypeDescription; | ||
| import net.bytebuddy.matcher.ElementMatcher; | ||
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| public class SmithyPlayRouterInstrumentation implements TypeInstrumentation { | ||
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| @Override | ||
| public ElementMatcher<ClassLoader> classLoaderOptimization() { | ||
| return hasClassesNamed("de.innfactory.smithy4play.routing.internal.Smithy4PlayRouterHandler"); | ||
| } | ||
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| @Override | ||
| public ElementMatcher<TypeDescription> typeMatcher() { | ||
| // System.out.println("- - - SmithyPlayRouterInstrumentation typeMatcher - - -"); | ||
| return named("de.innfactory.smithy4play.routing.internal.Smithy4PlayRouterHandler"); | ||
| } | ||
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| @Override | ||
| public void transform(TypeTransformer transformer) { | ||
| transformer.applyAdviceToMethod( | ||
| named("handleForInstrument"), | ||
| this.getClass().getName() + "$ApplyAdvice"); | ||
| //System.out.println("- - - SmithyPlayRouterInstrumentation transform - - -"); | ||
| } | ||
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| @SuppressWarnings("unused") | ||
| public static class ApplyAdvice { | ||
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| @Advice.OnMethodEnter() | ||
| public static void onEnter( | ||
| @Advice.Argument(0) java.lang.String path, | ||
| @Advice.Argument(1) java.lang.String method, | ||
| @Advice.Local("otelContext") Context context, | ||
| @Advice.Local("otelScope") Scope scope) { | ||
| //System.out.println("ApplyAdvice Start applyHandler"); | ||
| Context parentContext = currentContext(); | ||
| Span mySpan = GlobalOpenTelemetry.get().getTracer("smithy4play").spanBuilder("smithy4play.Smithy4PlayRouter").startSpan(); | ||
| context = mySpan.storeInContext(parentContext); | ||
| Scope myScope = mySpan.makeCurrent(); | ||
| scope = myScope; | ||
| } | ||
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| @Advice.OnMethodExit(onThrowable = Throwable.class) | ||
| public static void stopTraceOnResponse( | ||
| @Advice.This Object currentClass, | ||
| @Advice.Thrown Throwable throwable, | ||
| @Advice.Argument(0) java.lang.String path, | ||
| @Advice.Argument(1) java.lang.String method, | ||
| @Advice.Return(readOnly = false) java.lang.String returnValue, | ||
| @Advice.Local("otelContext") Context context, | ||
| @Advice.Local("otelScope") Scope scope) { | ||
| //System.out.println("ApplyAdvice End applyHandler"); | ||
| Span mySpan = currentSpan(); | ||
| if (scope != null) { | ||
| scope.close(); | ||
| } | ||
| if (mySpan != null) { | ||
| String routeName = path; | ||
| String methodName = method; | ||
| mySpan.setAttribute("class", currentClass.getClass().getName()); | ||
| mySpan.updateName(methodName + " " + routeName); | ||
| mySpan.setAttribute("http.request.method", methodName); | ||
| mySpan.setAttribute("http.request.url", routeName); | ||
| mySpan.end(); | ||
| } | ||
| if (throwable != null) { | ||
| throwable.printStackTrace(); | ||
| } | ||
| } | ||
| } | ||
| } |
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32 changes: 32 additions & 0 deletions
32
.../src/main/scala/de/innfactory/smithy4play/routing/internal/Smithy4PlayRouterHandler.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| package de.innfactory.smithy4play.routing.internal | ||
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| import cats.data.{EitherT, Kleisli} | ||
| import de.innfactory.smithy4play.{ContextRoute, RoutingResult, logger} | ||
| import de.innfactory.smithy4play.codecs.Codec | ||
| import de.innfactory.smithy4play.routing.context.RoutingContextBase | ||
| import de.innfactory.smithy4play.routing.middleware.Middleware | ||
| import de.innfactory.smithy4play.routing.internal.{deconstructPath, getSmithy4sHttpMethod, toSmithy4sHttpRequest, toSmithy4sHttpUri} | ||
| import de.innfactory.smithy4play.telemetry.Telemetry | ||
| import play.api.mvc.* | ||
| import play.api.routing.Router.Routes | ||
| import smithy4s.* | ||
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| class Smithy4PlayRouterHandler(router: PartialFunction[RequestHeader, RequestWrapped => ContextRoute[Result]]) { | ||
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| def applyHandler(v1: RequestHeader, serviceHints: Hints): Request[RawBuffer] => RoutingResult[Result] = { request => | ||
| val ctx: RoutingContextBase = RoutingContextBase.fromRequest(request,serviceHints, v1) | ||
| handleForInstrument(v1.path, v1.method) | ||
| router.apply(v1)(RequestWrapped(request, Map.empty)).run(ctx) | ||
| } | ||
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| def handleForInstrument(path: String, method: String): String = { | ||
| logger.debug(s"[${this.getClass.getName}] handle route for ${method} ${path}") | ||
| "" | ||
| } | ||
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| def isDefinedAtHandler(v1: RequestHeader): Boolean = { | ||
| val isdefined = router.isDefinedAt(v1) | ||
| if (!isdefined) logger.debug(s"[${this.getClass.getName}] router is not defined at ${isdefined} ${v1}") | ||
| isdefined | ||
| } | ||
| } |
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