It looks as though HP Web JetAdmin uses a SQL Express database (or optionally SQL Server), but I don't see any informaiton regarding an API. So I would say that you need to create an integration using JDBC to conect directly to the database to retirieve the records into staging tables, then use Robust Transform Engine to populate the data into the correct CMDB tables and relationships. Effectively building your own Service Graph connector. The SCCM SG connector also uses JDBC to connect to the datasource if you want an example to reference.
You could probably do it with a regular transform also, but RTE uses the IRE to prevent duplication etc, so it's a better option if you have the skills to create.
Regards,
David
