content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.kafkastreams;
  
  import static net.bytebuddy.matcher.ElementMatchers.isInterface;
  import static net.bytebuddy.matcher.ElementMatchers.isMethod;
  import static net.bytebuddy.matcher.ElementMatchers.isPackagePrivate;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.not;
  import static net.bytebuddy.matcher.ElementMatchers.returns;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.instrumentation.kafkaclients.common.v0_11.internal.KafkaConsumerContextUtil;
  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.kafka.clients.consumer.ConsumerRecord;
  import org.apache.kafka.common.header.Header;
  
  // in 1.0.0 SourceNodeRecordDeserializer was refactored into RecordDeserializer
  public class RecordDeserializerInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("org.apache.kafka.streams.processor.internals.RecordDeserializer")
          .and(not(isInterface()));
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          isMethod()
              .and(isPackagePrivate())
              .and(named("deserialize"))
              .and(takesArgument(1, named("org.apache.kafka.clients.consumer.ConsumerRecord")))
              .and(returns(named("org.apache.kafka.clients.consumer.ConsumerRecord"))),
          RecordDeserializerInstrumentation.class.getName() + "$DeserializeAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class DeserializeAdvice {
  
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static void onExit(
          @Advice.Argument(1) ConsumerRecord<?, ?> incoming,
          @Advice.Return(readOnly = false) ConsumerRecord<?, ?> result) {
        if (result == null) {
          return;
        }
  
        // on 1.x we need to copy headers from incoming to result
        if (!result.headers().iterator().hasNext()) {
          for (Header header : incoming.headers()) {
            result.headers().add(header);
          }
        }
  
        // copy the receive CONSUMER span association
        KafkaConsumerContextUtil.set(result, KafkaConsumerContextUtil.get(incoming));
      }
    }
  }
  