@Override
    public void deserialize(SourceRecord record, Collector<String> out) throws Exception {
        if (jsonConverter == null) {
            initializeJsonConverter();
        }
        byte[] bytes =
                jsonConverter.fromConnectData(record.topic(), record.valueSchema(), record.value());
        out.collect(new String(bytes));
    }
The custom configurations for {@link JsonConverter}.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/debezium/JsonDebeziumDeserializationSchema.java