content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.vertx.v4_0.redis;
  
  import static io.opentelemetry.javaagent.bootstrap.Java8BytecodeBridge.currentContext;
  import static io.opentelemetry.javaagent.instrumentation.vertx.v4_0.redis.VertxRedisClientSingletons.instrumenter;
  import static net.bytebuddy.matcher.ElementMatchers.isConstructor;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  
  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.vertx.core.Future;
  import io.vertx.core.net.NetSocket;
  import io.vertx.redis.client.Request;
  import io.vertx.redis.client.Response;
  import io.vertx.redis.client.impl.RedisStandaloneConnection;
  import io.vertx.redis.client.impl.RedisURI;
  import io.vertx.redis.client.impl.RequestUtil;
  import net.bytebuddy.asm.Advice;
  import net.bytebuddy.description.type.TypeDescription;
  import net.bytebuddy.matcher.ElementMatcher;
  
  public class RedisStandaloneConnectionInstrumentation implements TypeInstrumentation {
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("io.vertx.redis.client.impl.RedisStandaloneConnection");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(named("send"), this.getClass().getName() + "$SendAdvice");
      transformer.applyAdviceToMethod(
          isConstructor(), this.getClass().getName() + "$ConstructorAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class SendAdvice {
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onEnter(
          @Advice.This RedisStandaloneConnection connection,
          @Advice.Argument(0) Request request,
          @Advice.FieldValue("netSocket") NetSocket netSocket,
          @Advice.Local("otelRequest") VertxRedisClientRequest otelRequest,
          @Advice.Local("otelContext") Context context,
          @Advice.Local("otelScope") Scope scope) {
        if (request == null) {
          return;
        }
  
        String commandName = VertxRedisClientSingletons.getCommandName(request.command());
        RedisURI redisUri = VertxRedisClientSingletons.getRedisUri(connection);
        if (commandName == null || redisUri == null) {
          return;
        }
  
        otelRequest =
            new VertxRedisClientRequest(
                commandName, RequestUtil.getArgs(request), redisUri, netSocket);
        Context parentContext = currentContext();
        if (!instrumenter().shouldStart(parentContext, otelRequest)) {
          return;
        }
  
        context = instrumenter().start(parentContext, otelRequest);
        scope = context.makeCurrent();
      }
  
      @Advice.OnMethodExit(onThrowable = Throwable.class, suppress = Throwable.class)
      public static void onExit(
          @Advice.Thrown Throwable throwable,
          @Advice.Return(readOnly = false) Future<Response> responseFuture,
          @Advice.Local("otelRequest") VertxRedisClientRequest otelRequest,
          @Advice.Local("otelContext") Context context,
          @Advice.Local("otelScope") Scope scope) {
        if (scope == null) {
          return;
        }
  
        scope.close();
        if (throwable != null) {
          instrumenter().end(context, otelRequest, null, throwable);
        } else {
          responseFuture =
              VertxRedisClientSingletons.wrapEndSpan(responseFuture, context, otelRequest);
        }
      }
    }
  
    @SuppressWarnings("unused")
    public static class ConstructorAdvice {
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static void onExit(@Advice.This RedisStandaloneConnection connection) {
        // used in 4.1.0, for 4.0.0 it is set in RedisConnectionProviderInstrumentation
        VertxRedisClientSingletons.setRedisUri(
            connection, VertxRedisClientSingletons.getRedisUriThreadLocal());
      }
    }
  }
  