[NIFI-9677] LookUpRecord record path evaluation is "breaking" the next evaluation in case data is missing

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.26.0, 2.0.0-M3
• Component/s: Extensions
• Environment: Apache NiFi custom built from Github repo.
• Assignee: Jim Steinebrey
• Reporter: Peter Molnar
• Created: 11/Feb/22 11:35
• Updated: 27/Jan/24 02:55
• Resolved: 27/Jan/24 02:55

Description

Input JSON generated by GenerateFlowFile processor looks like this (actually I just added a currencies array under each record in addition to the "Record Update Strategy - Replace Existing Values" example here https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.15.0/org.apache.nifi.processors.standard.LookupRecord/additionalDetails.html).

Note: for the first record currencies array is empty.

 

[
  {
    "locales": [
      {
        "region": "FR",
        "language": "fr"
      }, {
        "region": "US",
        "language": "en"
      }
    ],
    "currencies": []
  }, {
    "locales": [
      {
        "region": "CA",
        "language": "fr"
      }, 
      {
        "region": "JP",
        "language": "ja"
      }
    ],
    "currencies": [
      {
        "currency": "CAD"
      }, {
        "currency": "JPY"
      }
    ]
  }
]

 

SimpleKeyValueLookUp service contains the following values:

 

LookUpRecord processor is configured as follows: 

Once I execute the LookUpRecord processor for the flow file, language look up works fine, but the look up for currencies and regions do not work.

 

Note: in case the 1st currencies array is not empty but contains { "currency": "EUR" }, { "currency": "USD" }, all look up works fine. But a missing data seems to break the next evaluation of the record path.

Please find the template for reproducing the issue enclosed as "LookUpRecord_empty_array_data_issue.xml".

Thank you.

 

Issue Links

• links to: GitHub Pull Request #8266