Exec 2 Binding: how to execute a script and use the execution result?

Add-ons Bindings
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2

You will want to use Rules and Design Pattern: Proxy Item.

  • Create a proxy Item that represents your Light switch’s state to OH

  • Continue to use the Exec binding or use executeCommandLine in a rule to call your script, I’ll assume you continue to use the Exec binding

  • Rules that get triggered when the Proxy Item receives a command and when the Item linked to the output channel receives an update

rule "Proxy Item received command"
when
    Item MySwitchProxy received command
then
    MySwitchInput.sendCommand(receivedCommand) // set the argument to the script, I think this kicks off the script if not
    MySwitch.sendCommand(ON) // trigger the script to run
end

rule "Process result from script"
when
    Item MySwitchOutput received update
then
    if(MySwitchOutput.state != MySwitchProxy.state) MySwitchProxy.postUpdate(MySwitchOutput.state)
end

If you use executeCommandLine you can do it all in one Rule

rule "Proxy Item received command"
when
    Item MySwitchProxy received command
then
    val result = executeCommandLine("/path/to/script " + receivedCommand, 1000)
    if(result != MySwitchProxy.state.toString) MySwitchProxy.postUpdate(result)
end