Add context parameter to rule action

[ghys]

This adds the ability for "run rules" actions to pass a context to the rule.
See openhab/openhab-core#3160 & openhab/openhab-core#3160 (comment)

The context can be passed as a JSON string, or as a YAML structure (allowing to include expressions more easily), as illustrated below, the 2 versions are roughly equivalent except the second one includes an expression:

action: rule
actionRule: dump_context
actionRuleContext: '{ "param1": "value1", "param2": { "subkey1": "testing", "subkey2": 123 } }'


action: rule
actionRule: dump_context
actionRuleContext:
 param1: value1
 param2:
   subkey1: testing
   subkey2: 123
   computed: =2+3

The dump_context can be as simple as a JS (Nashorn or JS Scripting) script with the following code:

print(ctx);

which outputs:

{param1=value1, ruleUID=dump_context, param2={subkey1=testing, subkey2=123.0, computed=5.0}}

[relativeci]

Job #652: Bundle Size — 15.96MiB (~+0.01%).

76dd7fc(current) vs 4fd6f8a main#651(baseline)

Metrics (2 changes)

	Current Job #652	Baseline Job #651
Initial JS	1.73MiB(+0.02%)	1.73MiB
Initial CSS	608.3KiB	608.3KiB
Cache Invalidation	90.48%	0.11%
Chunks	218	218
Assets	688	688
Modules	2007	2007
Duplicate Modules	108	108
Duplicate Code	1.8%	1.8%
Packages	133	133
Duplicate Packages	15	15

Total size by type (2 changes)

	Current Job #652	Baseline Job #651
CSS	856.34KiB	856.34KiB
Fonts	1.08MiB	1.08MiB
HTML	1.23KiB	1.23KiB
IMG	140.74KiB	140.74KiB
JS	9.03MiB (~+0.01%)	9.03MiB
Media	295.6KiB	295.6KiB
Other	4.59MiB (~-0.01%)	4.59MiB

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View job #652 report View main branch activity

[ghys]

Willing to be personally liable for late merging this little feature, as it would be too bad not to leverage openhab/openhab-core#3160 :)
Have been tested with no regressions.