DateTimeType error

Setup, Configuration and Use Scripts & Rules
1

I’m trying to reuse the Design Pattern: Working with Groups in Rules Design Pattern.

I’m getting the following error:

2017-07-17 20:47:56.902 [INFO ] [clipse.smarthome.model.script.motion] - Motion: Sensor - LandingMotion Triggered
2017-07-17 20:47:56.911 [INFO ] [clipse.smarthome.model.script.Motion] - Timer: LandingMotionTimer
2017-07-17 20:47:56.923 [ERROR] [.script.engine.ScriptExecutionThread] - Rule 'A Motion Sensor Changed': org.eclipse.smarthome.core.library.types.DateTimeType

items:

Group:Contact:OR(OPEN, CLOSED) gMotionSensors "The Motion Sensors are [%s]"
Group:DateTime:MAX gMotionLast "The last motion event was [%1$tm/%1$td %1$tH:%1$tM]" 
Group:Switch:OR(ON, OFF) gMotionTimers

Switch  HallwayMotionTimer  (gMotionTimers)    { expire="2m30s,command=OFF" }
Switch  LandingMotionTimer  (gMotionTimers)    { expire="2m30s,command=OFF" }

Contact  HallwayMotion "Hallway Motion [MAP(en.map):%s]" <contact> (gHall,gMotion,gMotionSensors) {mios="unit:house,device:22/service/SecuritySensor1/Tripped"}
DateTime HallwayMotion_LastUpdate "Hallway Motion [%1$tm/%1$td %1$tH:%1$tM]" (gMotionLast)
Contact LandingMotion	"Landing Motion [MAP(en.map):%s]" 	(gModbus, gMotion, gMotionSensors)   {modbus="slave1:0"}
DateTime LandingMotion_LastUpdate "Landing Motion [%1$tm/%1$td %1$tH:%1$tM]" (gMotionLast)

Rule:

rule "A Motion Sensor Changed"
when
    Item LandingMotion changed or
    Item HallwayMotion changed
then
    Thread::sleep(100) // give persistence time to catch up

    val motion = gMotionSensors.members.filter[s|s.lastUpdate("mapdb") != null].sortBy[lastUpdate("mapdb")].last as ContactItem
    logInfo("motion", "Motion: Sensor - " + motion.name + " Triggered")

    val timer = gMotionTimers.members.filter[t | t.name == motion.name+"Timer"].head as SwitchItem
    logInfo("Motion", "Timer: " + timer.name)
    if(motion.state == OPEN){
        timer.sendCommand(ON) 
    
        val lastUpdate = gMotionLast.members.filter[dt | dt.name == motion.name + "_LastUpdate"].head as DateTimeType
        logInfo("Motion", "LastUpdate: " + lastUpdate.name)
        lastUpdate.postUpdate(new DateTimeType)

        // Alert
        val StringBuilder msg = new StringBuilder
        msg.append(motion.name)  // note a map and transform can convert from Item name to human friendly words
        msg.append(" was activated")

        if(AlarmSet.state == ON){
    	    sendLogNotification(msg.toString)
        }
        if (FrontLux.state < LightLevelTrigger && Elevation.state < ElevationHeightTrigger){
		    msg.append(" DO stuff here!")
            logInfo("lightsLanding", msg.toString)
		    //LandingLightLoadLevelStatus.sendCommand(80)
        }
        
    } 
    //timer.postUpdate(OFF) // postUpdate(OFF) cancels the Timer without triggering the rule below
end

Thanks
James

2

It would be helpful to see the log statements immediately before the error so we know where in the rule it failed.

3

Updated the original post with the previous log entries, it points to the issue being here:

val lastUpdate = gMotionLast.members.filter[dt | dt.name == motion.name + "_LastUpdate"].head as DateTimeType
        logInfo("Motion", "LastUpdate: " + lastUpdate.name)

Cheers
James

4

Should be

val lastUpdate = gMotionLast.members.filter[dt | dt.name == motion.name + "_LastUpdate"].head as DateTimeItem

Though the cast is probably not even needed and you can just use:

val lastUpdate = gMotionLast.members.filter[dt | dt.name == motion.name + "_LastUpdate"].head

Edit: I’ve gone and corrected the error in the original posting. Thanks for finding the error! Hope this fixes it.

5

Thanks @rlkoshak for the speedy response - RFXcom problem solved, OH2 migration complete it’s time to start re-writing rules that I’ve avoided till now!

Cheers
James