NiFi Ingest 25.3
NiFi Ingest

# DetectContentLanguage

A processor that detects the language of the document content, and populates a document metadata field with the result.

## Properties

Name | Default Value | Description
--- | --- | ---
IDOL License Service |  | An IdolLicenseServiceImpl that provides a way to communicate with a Knowledge Discovery License Server.
KeyView Filter Service |  | A ControllerService that manages the location of the File Content Extraction binaries and temporary file storage.
Output Field | DetectedLanguage | The name of the document metadata field in which to write the name of the detected language.
Fail if language unknown | true | Specifies whether the FlowFile is routed to the failure relationship if the language is unknown.

## Relationships

Name | Description
--- | ---
success | Original FlowFiles that were successfully processed.
failure | FlowFiles that had an invalid or unknown format, or where the language could not be detected when the Fail if language unknown property is set to true.

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Version 25.3 | Last updated July 2025

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Product: Knowledge Discovery NiFi Ingest 25.3

Topic Title: DetectContentLanguage