How to configure the LDAP Validation disabling the mapping users?

Hello!

I need to know how to configure the applicationContext-externalAuth-LDAP.xml in order to validate the username and password with the LDAP, but using the internal users definition and roles (the user, role and userrole tables are populated with an ETL).

So, i need the app to check the password with the one in LDAP, but the user leave it at is defined in jasper.

Any ideas?

Thanks!