Random number selection via a rule

Setup, Configuration and Use Scripts & Rules
1

I’m not sure this is possible but here goes…

I have a rule that performs specific actions based on the value of a number item.

For example, if the number item state is 1 perform “A”, it the item state is 2 perform “B”, etc.

Usually the value of the number item can be determined by the user via a sitemap and mappings, however I’d like a rule to be able to make the selections. For this purpose it really doesn’t matter what selection the rule makes as long as it picks a number between 1 and 10. Is there a way to write a rule so it randomly selects a number between 1 and 10, then set a number item to the selected number?

I can achieve the same with a round-robin selection process if a rule is incapable of being a random number generator. However, i’m not sure how to do that either…

2

from demo.rules:

(Math::random * 10.0).intValue + 1

there is no special import for this in the demo.rules, it may be that you need to import

import java.lang.Math

though.

3

Everything in java.lang is imported by default so Math should be there without problem.