content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.kafkaclients.v0_11;
  
  import static io.opentelemetry.javaagent.bootstrap.kafka.KafkaClientsConsumerProcessTracing.wrappingEnabledSupplier;
  import static io.opentelemetry.javaagent.instrumentation.kafkaclients.v0_11.KafkaSingletons.consumerProcessInstrumenter;
  import static net.bytebuddy.matcher.ElementMatchers.isMethod;
  import static net.bytebuddy.matcher.ElementMatchers.isPublic;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.returns;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  import static net.bytebuddy.matcher.ElementMatchers.takesArguments;
  
  import io.opentelemetry.instrumentation.kafkaclients.common.v0_11.internal.KafkaConsumerContext;
  import io.opentelemetry.instrumentation.kafkaclients.common.v0_11.internal.KafkaConsumerContextUtil;
  import io.opentelemetry.instrumentation.kafkaclients.common.v0_11.internal.TracingIterable;
  import io.opentelemetry.instrumentation.kafkaclients.common.v0_11.internal.TracingIterator;
  import io.opentelemetry.instrumentation.kafkaclients.common.v0_11.internal.TracingList;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
  import java.util.Iterator;
  import java.util.List;
  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.clients.consumer.ConsumerRecords;
  
  public class ConsumerRecordsInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("org.apache.kafka.clients.consumer.ConsumerRecords");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          isMethod()
              .and(isPublic())
              .and(named("records"))
              .and(takesArgument(0, String.class))
              .and(returns(Iterable.class)),
          ConsumerRecordsInstrumentation.class.getName() + "$IterableAdvice");
      transformer.applyAdviceToMethod(
          isMethod()
              .and(isPublic())
              .and(named("records"))
              .and(takesArgument(0, named("org.apache.kafka.common.TopicPartition")))
              .and(returns(List.class)),
          ConsumerRecordsInstrumentation.class.getName() + "$ListAdvice");
      transformer.applyAdviceToMethod(
          isMethod()
              .and(isPublic())
              .and(named("iterator"))
              .and(takesArguments(0))
              .and(returns(Iterator.class)),
          ConsumerRecordsInstrumentation.class.getName() + "$IteratorAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class IterableAdvice {
  
      @SuppressWarnings("unchecked")
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static <K, V> void wrap(
          @Advice.This ConsumerRecords<?, ?> records,
          @Advice.Return(readOnly = false) Iterable<ConsumerRecord<K, V>> iterable) {
  
        // it's important not to suppress consumer span creation here because this instrumentation can
        // leak the context and so there may be a leaked consumer span in the context, in which
        // case it's important to overwrite the leaked span instead of suppressing the correct span
        // (https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/1947)
        KafkaConsumerContext consumerContext = KafkaConsumerContextUtil.get(records);
        iterable =
            TracingIterable.wrap(
                iterable, consumerProcessInstrumenter(), wrappingEnabledSupplier(), consumerContext);
      }
    }
  
    @SuppressWarnings("unused")
    public static class ListAdvice {
  
      @SuppressWarnings("unchecked")
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static <K, V> void wrap(
          @Advice.This ConsumerRecords<?, ?> records,
          @Advice.Return(readOnly = false) List<ConsumerRecord<K, V>> list) {
  
        // it's important not to suppress consumer span creation here because this instrumentation can
        // leak the context and so there may be a leaked consumer span in the context, in which
        // case it's important to overwrite the leaked span instead of suppressing the correct span
        // (https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/1947)
        KafkaConsumerContext consumerContext = KafkaConsumerContextUtil.get(records);
        list =
            TracingList.wrap(
                list, consumerProcessInstrumenter(), wrappingEnabledSupplier(), consumerContext);
      }
    }
  
    @SuppressWarnings("unused")
    public static class IteratorAdvice {
  
      @SuppressWarnings("unchecked")
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static <K, V> void wrap(
          @Advice.This ConsumerRecords<?, ?> records,
          @Advice.Return(readOnly = false) Iterator<ConsumerRecord<K, V>> iterator) {
  
        // it's important not to suppress consumer span creation here because this instrumentation can
        // leak the context and so there may be a leaked consumer span in the context, in which
        // case it's important to overwrite the leaked span instead of suppressing the correct span
        // (https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/1947)
        KafkaConsumerContext consumerContext = KafkaConsumerContextUtil.get(records);
        iterator =
            TracingIterator.wrap(
                iterator, consumerProcessInstrumenter(), wrappingEnabledSupplier(), consumerContext);
      }
    }
  }
  