@Bean
    public PluginDataHandler loggingKafkaPluginDataHandler() {
        return new LoggingKafkaPluginDataHandler();
    }
logging Kafka plugin data handler.
@return logging Kafka PluginDataHandler
shenyu-spring-boot-starter/shenyu-spring-boot-starter-plugin/shenyu-spring-boot-starter-plugin-logging-kafka/src/main/java/org/apache/shenyu/springboot/starter/plugin/logging/kafka/LoggingKafkaPluginConfiguration.java