ConsumerTracer (Vert.x Stack - Docs 5.0.0.CR3 API)

java.lang.Object
- io.vertx.kafka.client.common.tracing.ConsumerTracer<S>

```
public class ConsumerTracer<S>
extends Object
```
Tracer for Kafka consumer, wrapping the generic tracer.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class ConsumerTracer.StartedSpan

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <S> ConsumerTracer`	`create(VertxTracer tracer, KafkaClientOptions opts)`	Creates a ConsumerTracer, which provides an opinionated facade for using `VertxTracer` with a Kafka Consumer use case.
`ConsumerTracer.StartedSpan`	`prepareMessageReceived(Context context, org.apache.kafka.clients.consumer.ConsumerRecord rec)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - create
```
public static <S> ConsumerTracer create(VertxTracer tracer,
                                        KafkaClientOptions opts)
```
    Creates a ConsumerTracer, which provides an opinionated facade for using VertxTracer with a Kafka Consumer use case. The method will return null if Tracing is not setup in Vert.x, or if TracingPolicy.IGNORE is used.
    
    Type Parameters:
    
    S - the type of spans that is going to be generated, depending on the tracing system (zipkin, opentracing ...)
    
    Parameters:
    
    tracer - the generic tracer object
    
    opts - Kafka client options
    
    Returns:
    
    a new instance of ConsumerTracer, or null
  - prepareMessageReceived
```
public ConsumerTracer.StartedSpan prepareMessageReceived(Context context,
                                                         org.apache.kafka.clients.consumer.ConsumerRecord rec)
```