content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.rocketmqclient.v5_0;
  
  import static io.opentelemetry.javaagent.instrumentation.rocketmqclient.v5_0.RocketMqSingletons.producerInstrumenter;
  import static net.bytebuddy.matcher.ElementMatchers.isMethod;
  import static net.bytebuddy.matcher.ElementMatchers.isPrivate;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  import static net.bytebuddy.matcher.ElementMatchers.takesArguments;
  
  import io.opentelemetry.api.trace.Span;
  import io.opentelemetry.context.Context;
  import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
  import java.util.List;
  import java.util.concurrent.CompletableFuture;
  import net.bytebuddy.asm.Advice;
  import net.bytebuddy.description.type.TypeDescription;
  import net.bytebuddy.matcher.ElementMatcher;
  import org.apache.rocketmq.client.apis.producer.SendReceipt;
  import org.apache.rocketmq.client.java.impl.producer.SendReceiptImpl;
  import org.apache.rocketmq.client.java.message.PublishingMessageImpl;
  import org.apache.rocketmq.shaded.com.google.common.util.concurrent.Futures;
  import org.apache.rocketmq.shaded.com.google.common.util.concurrent.MoreExecutors;
  import org.apache.rocketmq.shaded.com.google.common.util.concurrent.SettableFuture;
  
  final class ProducerImplInstrumentation implements TypeInstrumentation {
  
    /** Match the implementation of RocketMQ producer. */
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("org.apache.rocketmq.client.java.impl.producer.ProducerImpl");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          isMethod()
              .and(named("send0"))
              .and(isPrivate())
              .and(takesArguments(6))
              .and(
                  takesArgument(
                      0,
                      named(
                          "org.apache.rocketmq.shaded.com.google.common.util.concurrent.SettableFuture")))
              .and(takesArgument(1, String.class))
              .and(takesArgument(2, named("org.apache.rocketmq.client.java.message.MessageType")))
              .and(takesArgument(3, List.class))
              .and(takesArgument(4, List.class))
              .and(takesArgument(5, int.class)),
          ProducerImplInstrumentation.class.getName() + "$SendAdvice");
  
      transformer.applyAdviceToMethod(
          isMethod()
              .and(named("sendAsync"))
              .and(takesArguments(1))
              .and(takesArgument(0, named("org.apache.rocketmq.client.apis.message.Message"))),
          ProducerImplInstrumentation.class.getName() + "$SendAsyncAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class SendAdvice {
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onEnter(
          @Advice.Argument(0) SettableFuture<List<SendReceiptImpl>> future0,
          @Advice.Argument(4) List<PublishingMessageImpl> messages) {
        Instrumenter<PublishingMessageImpl, SendReceiptImpl> instrumenter = producerInstrumenter();
        int count = messages.size();
        List<SettableFuture<SendReceiptImpl>> futures = FutureConverter.convert(future0, count);
        for (int i = 0; i < count; i++) {
          PublishingMessageImpl message = messages.get(i);
  
          // Try to extract parent context.
          Context parentContext = VirtualFieldStore.getContextByMessage(message);
          if (parentContext == null) {
            parentContext = Context.current();
          }
  
          Span span = Span.fromContext(parentContext);
          if (!span.getSpanContext().isValid()) {
            parentContext = Context.current();
          }
  
          SettableFuture<SendReceiptImpl> future = futures.get(i);
          if (!instrumenter.shouldStart(parentContext, message)) {
            return;
          }
          Context context = instrumenter.start(parentContext, message);
          Futures.addCallback(
              future,
              new SendSpanFinishingCallback(instrumenter, context, message),
              MoreExecutors.directExecutor());
        }
      }
    }
  
    @SuppressWarnings("unused")
    public static class SendAsyncAdvice {
      @Advice.OnMethodExit(onThrowable = Throwable.class, suppress = Throwable.class)
      public static void onExit(
          @Advice.Return(readOnly = false) CompletableFuture<SendReceipt> future,
          @Advice.Thrown Throwable throwable) {
        if (throwable == null) {
          future = CompletableFutureWrapper.wrap(future);
        }
      }
    }
  }
  