MqttToKafkaInput (HiveMQ Kafka Extension Customization SDK 4.28.1 API)

```
@Immutable
@DoNotImplement
public interface MqttToKafkaInput
```
The input parameter of the MqttToKafkaTransformer. It contains the information of the to be transformed PublishPacket.
Additionally, the MqttToKafkaInput allows access to the KafkaCluster and the KafkaTopicService for this cluster.

Since:

4.4.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`@NotNull KafkaCluster`	`getKafkaCluster()`
`@NotNull KafkaTopicService`	`getKafkaTopicService()`
`@NotNull PublishPacket`	`getPublishPacket()`

- Method Detail
  - getPublishPacket
```
@NotNull
@NotNull PublishPacket getPublishPacket()
```
    Returns:
    
    The PublishPacket that triggered this transformer call.
    
    Since:
    
    4.4.0
  - getKafkaTopicService
```
@NotNull
@NotNull KafkaTopicService getKafkaTopicService()
```
    Returns:
    
    The KafkaTopicService to interact with topics on the Kafka cluster.
    
    Since:
    
    4.4.0
  - getKafkaCluster
```
@NotNull
@NotNull KafkaCluster getKafkaCluster()
```
    Returns:
    
    The KafkaCluster this transformer is associated with.
    
    Since:
    
    4.4.0