content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.elasticsearch.transport.v5_0;
  
  import static io.opentelemetry.javaagent.bootstrap.Java8BytecodeBridge.currentContext;
  import static io.opentelemetry.javaagent.instrumentation.elasticsearch.transport.v5_0.Elasticsearch5TransportSingletons.instrumenter;
  import static net.bytebuddy.matcher.ElementMatchers.isMethod;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.context.Context;
  import io.opentelemetry.context.Scope;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
  import io.opentelemetry.javaagent.instrumentation.elasticsearch.transport.ElasticTransportRequest;
  import io.opentelemetry.javaagent.instrumentation.elasticsearch.transport.TransportActionListener;
  import net.bytebuddy.asm.Advice;
  import net.bytebuddy.description.type.TypeDescription;
  import net.bytebuddy.matcher.ElementMatcher;
  import org.elasticsearch.action.Action;
  import org.elasticsearch.action.ActionListener;
  import org.elasticsearch.action.ActionRequest;
  import org.elasticsearch.action.ActionResponse;
  
  public class AbstractClientInstrumentation implements TypeInstrumentation {
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      // If we want to be more generic, we could instrument the interface instead:
      // .and(safeHasSuperType(named("org.elasticsearch.client.ElasticsearchClient"))))
      return named("org.elasticsearch.client.support.AbstractClient");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          isMethod()
              .and(named("execute"))
              .and(takesArgument(0, named("org.elasticsearch.action.Action")))
              .and(takesArgument(1, named("org.elasticsearch.action.ActionRequest")))
              .and(takesArgument(2, named("org.elasticsearch.action.ActionListener"))),
          this.getClass().getName() + "$ExecuteAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class ExecuteAdvice {
  
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onEnter(
          @Advice.Argument(0) Action<?, ?, ?> action,
          @Advice.Argument(1) ActionRequest<?> actionRequest,
          @Advice.Local("otelContext") Context context,
          @Advice.Local("otelScope") Scope scope,
          @Advice.Local("otelRequest") ElasticTransportRequest transportRequest,
          @Advice.Argument(value = 2, readOnly = false)
              ActionListener<ActionResponse> actionListener) {
  
        transportRequest = ElasticTransportRequest.create(action, actionRequest);
        Context parentContext = currentContext();
        if (!instrumenter().shouldStart(parentContext, transportRequest)) {
          return;
        }
  
        context = instrumenter().start(parentContext, transportRequest);
        scope = context.makeCurrent();
  
        actionListener =
            new TransportActionListener<>(
                instrumenter(), transportRequest, actionListener, context, parentContext);
      }
  
      @Advice.OnMethodExit(onThrowable = Throwable.class, suppress = Throwable.class)
      public static void stopSpan(
          @Advice.Thrown Throwable throwable,
          @Advice.Local("otelContext") Context context,
          @Advice.Local("otelScope") Scope scope,
          @Advice.Local("otelRequest") ElasticTransportRequest transportRequest) {
        if (scope == null) {
          return;
        }
  
        scope.close();
  
        if (throwable != null) {
          instrumenter().end(context, transportRequest, null, throwable);
        }
      }
    }
  }
  