content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.wicket;
  
  import static io.opentelemetry.instrumentation.api.semconv.http.HttpServerRouteSource.CONTROLLER;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.instrumentation.api.semconv.http.HttpServerRoute;
  import io.opentelemetry.javaagent.bootstrap.Java8BytecodeBridge;
  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;
  import org.apache.wicket.core.request.handler.IPageClassRequestHandler;
  import org.apache.wicket.request.IRequestHandler;
  
  public class RequestHandlerExecutorInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("org.apache.wicket.request.RequestHandlerExecutor");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          named("execute").and(takesArgument(0, named("org.apache.wicket.request.IRequestHandler"))),
          RequestHandlerExecutorInstrumentation.class.getName() + "$ExecuteAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class ExecuteAdvice {
  
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onExit(@Advice.Argument(0) IRequestHandler handler) {
        if (handler instanceof IPageClassRequestHandler) {
          HttpServerRoute.update(
              Java8BytecodeBridge.currentContext(),
              CONTROLLER,
              WicketServerSpanNaming.SERVER_SPAN_NAME,
              (IPageClassRequestHandler) handler);
        }
      }
    }
  }
  