openHAB 3.0 Milestone 4 discussion

[milo (M)]

Hello,
i always get this error:

script execution of rule with UID 'ephemeris-1' failed: An error occurred during the script execution: Could not invoke method: org.openhab.core.model.script.actions.BusEvent.postUpdate(org.openhab.core.items.Item,org.openhab.core.types.State) on instance: null in ephemeris

how do i know which rule is ephermis-1 ??? and what is there all about?

[orzechszek (orzech)]

I’ve reverted to 2037 - looks much better for now.

[rlkoshak (Rich Koshak)]

There is an issue to address that and use the rule name instead of UID in those errors. In the mean time you can query the REST API for the rule with that UID and you should be able to tell from the JSON you get back which rule is the problem.

I would expect you have a rule names or containing “ephemeris” in the name.

[milo (M)]

@rlkoshak How do I query the rule Id via rest?

[moody_blue (Hugo)]

@buschif4

In the main UI you can export the configuration and share this. On each rule, thing etc. you ahve a page “Code” that shows the configuration of your thing/rule. You can copy this and share it here with others.

Much more complex and less legible than just copy/paste files to this forum… A bulk export/import would be welcome.

[Lolodomo]

Just open thé rules page to see the mapping rule name / rule UID,

[rlkoshak (Rich Koshak)]

@milo

How do I query the rule Id via rest?

Go to Developer Tools → API Explorer and scroll down to the Rules section. They are interactive docs so you can issue the query from there.

[rlkoshak (Rich Koshak)]

@moody_blue

Much more complex and less legible than just copy/paste files to this forum

It’s no more or less legible than the .things file syntax and .rules file syntax. Don’t confuse familiarity with legibility.

And it’s not more complex than opening a text editor, opening the .rules file, and copy and paste the rule into the forum.

The steps are literally just open MainUI, browse to the rule, click on “code”, copy and paste the rule into the forum. There’s only one extra click.

I’ve already opened an issue for import of the YAML files.

I don’t know if there is an issue for bulk import/export. I’m not sure it makes a lot of sense. If you are working with bulk like that it may make more sense to use the raw JSON and REST API, the JSONDB files themselves, or just stick to your text based configs in the first place. But a feature request can be made by anyone.

[DeanC (Dean)]

I’m having some trouble converting my OH2 DSL rules over to OH3 when they use Ephemeris.

The OH2 rule is:

rule "Weekend Morning" 
when
          Time cron "0 30 07 ? * * *"
  then
        if ((Morning_Scene.state != ON) && ((Holiday_Scene.state == ON) || Ephemeris.isWeekend || Ephemeris.isBankHoliday) {
                Morning_Scene.sendCommand(ON)
        }
end

And my corresponding OH3 rule is:

triggers:
  - id: "1"
    configuration:
      cronExpression: 0 30 7 * * ? *
    type: timer.GenericCronTrigger
conditions:
  - inputs: {}
    id: "2"
    label: Not work day
    configuration:
      type: application/vnd.openhab.dsl.rule
      script: (Holiday_Scene.state == ON) || Ephemeris.isWeekend ||
        Ephemeris.isBankHoliday
    type: script.ScriptCondition
  - inputs: {}
    id: "4"
    configuration:
      itemName: Morning_Scene
      state: ON
      operator: "!="
    type: core.ItemStateCondition
actions:
  - inputs: {}
    id: "3"
    configuration:
      itemName: Morning_Scene
      command: ON
    type: core.ItemCommandAction

But the rule fails with the less than helpful message

[ERROR] [e.automation.internal.RuleEngineImpl] - Failed to execute rule 'Weekend_Morning': null

Any suggestions?

[rlkoshak (Rich Koshak)]

The only code here is in the conditions. That’s the most likely source of the error. I can think of a few ways to debug this.

1. First make sure Morning_Scene is properly defined. I’m assuming you selected the Item through the UI so it’s probably fine but if you edited the YAML in the code tab it might have a typo or something.

2. Simplify the script condition. Just check for Holiday_Scene first. If that works add in the isWeekend and then the isBankHoliday. That should tell you which call is failing or if there is something fundamentally wrong with the script over all if Holiday_Scene.state == ON fails.

There is nothing obviously wrong with the rule over all. But I’ve no experience writing Rules DSL in MainUI so there may be something I don’t know that is acting weird. We need to find which of those three calls is failing to determine if a bug needs to be filed I think.

[jsjames (Jeff James)]

Hi Paul - I have the same issue with OH3. Setpoints via the defaultui are not working consistently (I’ve only had them work once so far - and not sure why). I tried both safari and chrome as web browser with similar results.

[sidamos]

@buschif4

Also for old ITEM configuration files, theyy can be imported on OH3 on an admin page, so also the old design patterns can be shared.

Where can items be imported? I don’t see it.

[milo (M)]

Can someone help me quick with the correct expression instead of

now.getDayOfWeek

?

I know the times library changed but don’t know from which to which…and can’t find it…

i tried this

LocalDate.now().getDayOfWeek()

also not possible…

[Kai (Kai Kreuzer)]

In my rule:

    logInfo("TEST", now.getDayOfWeek().toString)

Console output:

08:51:29.670 [INFO ] [org.openhab.core.model.script.TEST   ] - THURSDAY

[milo (M)]

Ok I need in OH3

toString() or getValue()

to get the name of the Day or the Integer value.

Regards

[Kai (Kai Kreuzer)]

No, the toString is only necessary to print it as a string in the log statement (as it expects a string parameter). The getDayOfWeek() returns an enum as per the javadoc.

[milo (M)]

Sorry yes you are right

[Tron (Michael Frotscher)]

Hi Guys,

is it just me or does MapDB work in your M4? For me, it crashes on startup on either M3 or M4 and thus does not initialize the item states.
I found some discussion on this for M1, but nothing newer nor a solution.

Thanks!

[hmerk (Hans-Jörg Merk)]

No, working fine for me…

[wborn (Wouter Born)]

@Tron

For me, it crashes on startup on either M3 or M4 and thus does not initialize the item states.

If crashes means you see the exception in this issue:

[mapdb] ClassNotFoundException on activation "org.openhab.persistence.mapdb.internal.MapDBitemSerializer cannot be found"

… then you need to remove the DB file and start from scratch.