Item last update using JSR223 Jython (openHAB2 2.2)

Setup, Configuration and Use Scripts & Rules
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1

Hi there!

Would you like to help a NOOB?

I have persistence set up and working.

I just like to find out an items last update using JSR223 Jython on openHAB2 2.2
Nothing fancy. Just like to retrieve the date.

Can the following script easily be modified:

scriptExtension.importPreset("RuleSimple")
scriptExtension.importPreset("RuleSupport")

class MyRule(SimpleRule):
    def __init__(self):
        self.triggers = [
             Trigger("MyTrigger", "core.ItemStateUpdateTrigger", 
                    Configuration({ "itemName": "TestString1"}))
        ]
        
    def execute(self, module, input):
        item = ir.getItem("A580IP")
        # Here... what to do to get the items last update time?????


automationManager.addRule(MyRule())

Just the way that I do in the following Xtend script which works great:

rule "Test"
when
    Time cron "0/15 * * * * ?"
then
    var String Timestamp = Bathroom_Door.lastUpdate.toDateTime.toString("yyyy-MM-dd HH:mm:ss")
    if (!Bathroom_Door.updatedSince(now.minusSeconds(90))) {
        logInfo("Bathroom_Door", "Bathroom door was opened : " + Timestamp)
    }
end

I appreciate your kind help!!! Cheers!

Edit: I hope it doesn’t matter what kind of persistence service I’ve setup. But in case it does, I’ve set up InfluxDB (v 1.0) Persistence.

2

Hi guys. The answer to my question, the following should work:

scriptExtension.importPreset("RuleSimple")
scriptExtension.importPreset("RuleSupport")
from org.eclipse.smarthome.model.persistence.extensions import PersistenceExtensions
from org.slf4j import LoggerFactory

class MyRule(SimpleRule):
    def __init__(self):
        self.triggers = [
             Trigger("MyTrigger", "core.ItemStateUpdateTrigger", 
                    Configuration({ "itemName": "TestString1"}))
        ]

    def execute(self, module, input):
        item = ir.getItem("A580IP")
        mystring = str(PersistenceExtensions.lastUpdate(item))
        LoggerFactory.getLogger("org.eclipse.smarthome.automation.examples").info(mystring)

Cheers!