content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.apacheshenyu.v2_4;
  
  import static net.bytebuddy.matcher.ElementMatchers.isPublic;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.context.Context;
  import io.opentelemetry.instrumentation.api.semconv.http.HttpServerRoute;
  import io.opentelemetry.instrumentation.api.semconv.http.HttpServerRouteSource;
  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.shenyu.common.constant.Constants;
  import org.apache.shenyu.common.dto.MetaData;
  import org.springframework.web.server.ServerWebExchange;
  
  public class ContextBuilderInstrumentation implements TypeInstrumentation {
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("org.apache.shenyu.plugin.global.DefaultShenyuContextBuilder");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          named("build")
              .and(takesArgument(0, named("org.springframework.web.server.ServerWebExchange")))
              .and(isPublic()),
          this.getClass().getName() + "$BuildAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class BuildAdvice {
      @Advice.OnMethodExit(onThrowable = Throwable.class, suppress = Throwable.class)
      public static void onExit(@Advice.Argument(0) ServerWebExchange exchange) {
        Context context = Context.current();
        MetaData metaData = exchange.getAttribute(Constants.META_DATA);
        if (metaData == null) {
          return;
        }
        HttpServerRoute.update(
            context,
            HttpServerRouteSource.NESTED_CONTROLLER,
            ApacheShenYuSingletons.httpRouteGetter(),
            metaData);
        MetaDataHelper.extractAttributes(metaData, context);
      }
    }
  }
  