topic Re: Splitting a string in Velocity in Network Platform API

Splitting a string in Velocity

glsparks — Tue, 30 May 2023 14:53:16 GMT

I'm attempting to split a user inputted string that is representing a list of comma separated IP addresses in CIDR notation. In order to determine a wildcard mask later in the script.

eg. 192.168.0.0/24,172.16.0.0/16

#set ($networks = ${networks})
#set ($octets =$networks.split('\,'))
#set ($mask = $octets)

#foreach ($net in $mask)
$net
#end

This outputs:

192.168.0.0/24

172.16.0.0/16

I'm using this currently to create a prefix list which works as expected. However i'd like to also create an ACL from the list which would require determining the Wildcard Mask.

So what I would like to achieve is a way of returning just the list of masks e.g.

Any tips on how can i achieve this?

Re: Splitting a string in Velocity

bigevilbeard — Tue, 30 May 2023 15:42:11 GMT

Something like?

#set ($networks = ${networks}) #set ($octets = $networks.split('\,')) #set ($masks = []) #foreach ($net in $octets) #set ($mask = $net.split('/')[1]) #set ($masks.add($mask)) #end #foreach ($mask in $masks) $mask #end

The inputted string is 192.168.0.0/24,172.16.0.0/16, the code will print the following to the console:

24 16

Re: Splitting a string in Velocity

glsparks — Wed, 31 May 2023 07:20:47 GMT

Perfect well almost perfect. I had to add this to get it to work. Else it just through a syntax error. But many thanks really helped me out.

#set ($networks = ${networks})
#set ($octets = $networks.split('\,'))
#set ($masks = [])

#foreach ($net in $octets)
#set ($mask = $net.split('/')[1])
#set ($foo = $masks.add($mask))
#end
#foreach ($mask in $masks) $mask
#end