def populate_local_cache(self):
        """Populate the local cache from DB.

        Read the entries from FW DB and Calls routines to populate the cache.
        """
        fw_dict = self.get_all_fw_db()
        for fw_id in fw_dict:
            LOG.info("Populating cache for FW %s", fw_id)
            fw_data = fw_dict[fw_id]
            self.populate_local_cache_tenant(fw_id, fw_data)
Populate the local cache from DB.

        Read the entries from FW DB and Calls routines to populate the cache.