The existing handler is written expecting to take the mapping rules from the Mapping profile and use MappingManager to generate Holdings.
We have to make it work receiving default rules in the event payload and use HoldingProcessor to generating Holdings. You can take MarcBibInstanceHridSetKafkaHandler.java as an example.
- The MarcHoldingsRecordHridSetKafkaHandler generates Holdings using default mapping rules
- Units tests are updated