public static KafkaLogCollectClient getKafkaLogCollectClient() {
        return KAFKA_LOG_COLLECT_CLIENT;
    }
get kafka log collect client.

@return kafka log collect client.
shenyu-plugin/shenyu-plugin-logging/shenyu-plugin-logging-kafka/src/main/java/org/apache/shenyu/plugin/logging/kafka/handler/LoggingKafkaPluginDataHandler.java