added log output for caching
added log output for caching

DURAARK/microservice-sipgenerator,DURAARK/duraark-digitalpreservation,DURAARK/microservice-sipgenerator,DURAARK/microservice-sipgenerator,DURAARK/microservice-sipgenerator,DURAARK/duraark-digitalpreservation,DURAARK/duraark-digitalpreservation,DURAARK/duraark-digitalpreservation