topic Re: How to segregate between user-defined config and default configs on a device from Java Api in NSO in NSO Developer Hub Discussions

How to segregate between user-defined config and default configs on a device from Java Api in NSO

neetimit — Fri, 02 Aug 2019 17:59:55 GMT

I am trying to delete all user-defined configuration on a device using NAVU API in action package, but when I traverse the tree, I get all the default leafs as well

for example for nx device these are default configs and not done by operator explicitly:

leaf path: /ncs:devices/device{rfs1nx}/config/nx:interface/Ethernet{1/25}/mtu leaf value: 1500
leaf path: /ncs:devices/device{rfs1nx}/config/nx:interface/Ethernet{1/25}/delay leaf value: 1

Executing live-status action gives me the user-defined config only but then how can I create Xpath for leaf deletion using these config lines? Any suggestions?

output of live-status:

interface Ethernet1/12

description NXC

shutdown

switchport access vlan 999

speed 1000

no snmp trap link-status

Appreciate any inputs!!

Re: How to segregate between user-defined config and default configs on a device from Java Api in NSO

gmuloche — Mon, 05 Aug 2019 08:54:14 GMT

Hello,

You can have a look at the flags for your MAAPI session in the doc: "doc/api/java/com/tailf/maapi/MaapiFlag.html". The flags NO_DEFAULT should be able to solve your problem (quoting 5.2 doc):

NO_DEFAULTS
public static final MaapiFlag NO_DEFAULTS
This flag specifies that we want to be informed when we read leafs with default values that have not had a value set.
This is indicated by the returned value being of class ConfDefault (type J_DEFAULT) instead of the actual value. The default value for such leafs can be obtained from the Maapi.loadSchemas() tree provided by the library.

You can set the flags at transaction creation or using the setFlags function. I don't have a working example in Java but I have used similar mechanism in python in the past.

Regards

Re: How to segregate between user-defined config and default configs on a device from Java Api in NSO

neetimit — Mon, 05 Aug 2019 16:08:58 GMT

@gmuloche Thanks so much! this worked perfectly.