Can I use Thread:Sleep(x) with a variable?

Setup, Configuration and Use Scripts & Rules
1

I have a script that turns off a light after XX seconds and would like to be able to change the XX seconds in runtime via a slider.

I created an item as:

Number StairsTimeout

and I am trying to use it as:

Thread:Sleep(StairsTimeout.state)

…but I get an error "Could not invoke method: java.lang.Thread.sleep(long) on instance: null

What am I doing wrong?

2

Until you actually set the Item to something, it’s value will be NULL, thus throwing the error.
You need something on your sitemap to actually set the item’s value.
I would recommend a setpoint rather than a slider, it’s better to set to a defined value.
likeso:

Setpoint item=StairsTimeout    minValue=1 maxValue=60 step=1

With this you can set the value from 1 to 60 seconds in 1 second intervals.
If you did this and the error is still there, cast the Item like so:
(StairsTimeout.state as DecimalType).longValue
I would also suggest to persist the item, else you will get the same error after a restart of OH.
HTH,
regards,
-OLI

3

I checked if StairsTimeout has a value and it does, I tested it in the script rule by logging its value to the logger

4

Did you try to cast it?

5

I think you’ll need to make it an integer type to use with sleep

6

It worked by casting it

7

can you show the casting coding?

8 
Thread::sleep((LightStairsTimeout.state as DecimalType).longValue * 1000)
LightStairs.sendCommand(OFF)