[jboss-jira] [JBoss JIRA] (DROOLS-5017) DMN Validation does not provide a proper descriptive error message

[Matteo Mortari (Jira)]

    [ https://issues.redhat.com/browse/DROOLS-5017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13965322#comment-13965322 ] 

Matteo Mortari commented on DROOLS-5017:
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The validator reports the following messages:


{code:java}
Message [id=0, level=WARNING, path=null, line=108, column=-1
   text=DMN: Variable name contains leading or traling spaces 'Base Vacation Days ' on node 'Base Vacation Days ' (DMN id: _34B27FCC-31C7-419B-85D4-63F8E6B8DD71, The listed name is not a valid FEEL identifier) ]
Message [id=0, level=WARNING, path=null, line=137, column=-1
   text=DMN: Decision table with single output on node 'Extra days case 1' should not have an output type reference (DMN id: _0CD749C5-FABA-4A0C-9AAF-C44AC9D19CE2, The referenced element should not have a typeref set) ]
Message [id=0, level=WARNING, path=null, line=77, column=-1
   text=DMN: Decision table with single output on node 'Extra days case 3' should not have an output type reference (DMN id: _F385BCF6-3C6E-464A-B5D8-8B74F0985421, The referenced element should not have a typeref set) ]
Message [id=0, level=WARNING, path=null, line=24, column=-1
   text=DMN: Decision table with single output on node 'Extra days case 2' should not have an output type reference (DMN id: _5F5AF524-E9FF-4DC4-8609-18093C4D1C47, The referenced element should not have a typeref set) ]
{code}


> DMN Validation does not provide a proper descriptive error message
> ------------------------------------------------------------------
>
>                 Key: DROOLS-5017
>                 URL: https://issues.redhat.com/browse/DROOLS-5017
>             Project: Drools
>          Issue Type: Bug
>          Components: DMN Editor
>    Affects Versions: 7.32.0.Final
>            Reporter: Duncan Doyle
>            Assignee: Michael Anstis
>            Priority: Major
>              Labels: drools-tools
>         Attachments: Screenshot 2020-02-06 at 11.25.18.png, vacation-days.dmn
>
>
> The attached DMN file is invalid as it contains a trailing space in one of its decision nodes (Base Vacation Days). I've checked with [~tari_manga], and according to him, the backend DMN validator is capable of detecting the problem and giving a proper error message. However the DMN editor in the workbench does not give any user friendly hint what the problem is, and hence it's almost impossible for a user to figure out what's wrong.
> I've attached both the DMN model and  a screenshot of the error message displayed by our editor.



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