As I continue to refine my smart home setup, I’ve been diving deep into OpenHAB’s rule engine to streamline my lighting automation. One area I’ve been focusing on is creating dynamic lighting scenes without duplicating code across multiple rules. I stumbled upon the idea of using lambda expressions to achieve this, but I’m hitting a bit of a snag in the implementation.
For context, I’ve set up several lighting scenes across my home, each with its own set of lamps and modes. My current setup involves four nearly identical rules, each controlling a different group of lamps. Here’s a snippet of one of them:
plaintext
rule “Light Scenes0”
when Item Lights_scene0 received command
then
if (receivedCommand==0) {
sendCommand(All_Lamps_Whitemode, ON)
sendCommand(All_Lamps_Dimmer, 100)
}
// … more conditions
end
While this works, it’s repetitive and hard to maintain. I’d love to refactor this into a single rule using lambda expressions, but I’m not entirely sure how to pass the necessary lamp groups dynamically. Is there a way to reference lamp groups like “All_Lamps” or “G_Livingroom_Lamps” and have the lambda append the appropriate modes (e.g., Whitemode, Discomode) automatically?
I’ve tried a few approaches, but I’m consistently running into issues with variable scoping and parameter handling. Any guidance or examples would be incredibly helpful! I’m also curious if others have tackled similar challenges and how they’ve optimized their lighting automation setups.
Looking forward to hearing your thoughts and experiences!