Re: Calling Decision Service from another DMN, Input errors

[Jozef Marko]

Hi Brendan, would it be possible to share a DMN file you produced? I think it would help with investigating the issue you spot.

On Thu, Oct 26, 2023 at 2:12 PM Brendan <brendan...@gmail.com> wrote:

As the topic states.

I have a decision service, and I am calling the top level decision in another DMN file.

I am adding the source DMN to the new one as Included Model.

I take the service from the properties tab, then link up the inputs and assign them the values in the properties associated with the Service.

Then i link to a decision node and assign with the following message:

Delinquency.Credit History Bureau Delinquency Auto Approval Acceptability Service(TransUnion Report : tTransunion Report, Applicaton : tApplication, Debt : tDebt, Account Net Characteristics : tAccount Net Characteristics)

But it seems the inputs are not coming, I get numerous FEEL errors stating they are null values, and most decisions on the canvas give errors related to sub decisions they are dependent on not being available.

I can only assume the Inputs are not linking up.

some of the errors in the terminal, there are more of the same but this is the gist:

2023-10-26 14:02:50,943 ERROR [org.kie.dmn.cor.ast.DMNLiteralExpressionEvaluator] (executor-thread-0) FEEL ERROR while evaluating literal expression 'abs((years and months duration(date(Application.cr... [string clipped after 50 chars, total length is 181]': The parameter 'from', in function years and months duration(), cannot be null.
2023-10-26 14:02:50,944 ERROR [org.kie.dmn.cor.ast.DMNLiteralExpressionEvaluator] (executor-thread-0) FEEL ERROR while evaluating literal expression 'abs((years and months duration(date(Application.cr... [string clipped after 50 chars, total length is 181]': The parameter 'from', in function date(), cannot be null.
2023-10-26 14:02:50,946 ERROR [org.kie.dmn.cor.ast.DMNLiteralExpressionEvaluator] (executor-thread-0) FEEL ERROR while evaluating literal expression 'abs((years and months duration(date(Application.cr... [string clipped after 50 chars, total length is 181]': The parameter 'from', in function years and months duration(), cannot be null.
2023-10-26 14:02:50,948 ERROR [org.kie.dmn.cor.ast.DMNLiteralExpressionEvaluator] (executor-thread-0) FEEL ERROR while evaluating literal expression 'abs((years and months duration(date(Application.cr... [string clipped after 50 chars, total length is 181]': The parameter 'duration', in function abs(), cannot be null.
2023-10-26 14:02:50,952 ERROR [org.kie.dmn.cor.imp.DMNRuntimeImpl] (executor-thread-0) Unable to evaluate decision 'Newly Acquired Trades Count' as it depends on decision 'Open Trade Tenure in Months'
2023-10-26 14:02:50,954 ERROR [org.kie.dmn.cor.imp.DMNRuntimeImpl] (executor-thread-0) Unable to evaluate decision 'Newly Acquired Trade Acceptability' as it depends on decision 'Newly Acquired
Trades Count'
2023-10-26 14:02:50,955 ERROR [org.kie.dmn.cor.imp.DMNRuntimeImpl] (executor-thread-0) Unable to evaluate decision 'Credit History Bureau Delinquency Auto Approval Acceptability' as it depends on decision 'Newly Acquired Trade Acceptability'

What could be causing this?

FYI I have used the same method of connecting services in other DMN and it works there, this is specific to this connection.

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Regards, Jozef

Red Hat Partner Engineer