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Resources & Remarks Modification History
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| Service Name | contentanalyzer |
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| Port Range | 7430-7439 |
| Profiles | prod, docker, kubernetes, metrics |
| Helm Chart | yuuvis |
Function
In the default configuration, each binary content file imported to yuuvis® Momentum passes the CONTENTANALYZER service. Its mime type is determined and the contained text is extracted for the most common file types.
>> Basic Use Case Flows
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The CONTENTANALYZER can extract the text contained in an imported binary content file. The extracted plain text is stored as text rendition in the search index and will be used for the full-text search together with all values of string properties within the metadata.
The text extraction is available for the following file types:
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MS Office Word 97-2016
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MS Office PowerPoint 97-2016
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MS Office Excel 97-2016
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As of 2023 Summer, the length of extracted full-text is limited by the configurable parameter maxTextLength (default 2048 kB). Thus, overloads and downtimes of the CONTENTANALYZER service due huge content files with much text can be avoided.
The file types for which text extraction is available are listed here:
>> Renditions
The text rendition can be retrieved via the following endpoint:
>> GET /api/dms/objects/{objectId}/contents/renditions/text
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Configuration
The default behavior of the CONTENTANALYZER service can be changed via serviceConfiguration.json configuration file. The analysis of the content and/or mime type can be requested or not, depending on the defined conditions. If a condition matches during an import process, the content and/or mime type will be analyzed.
>> serviceConfiguration.json
Note: Within each import request body, this configuration can be overwritten by specifying the options parameters accordingly. The analysis of content and/or mime type can be requested or suppressed even if the opposite behavior is configured in the file serviceConfiguration.json.
Furthermore, it is possible to set the following parameters in a service-specific configuration file for the CONTENTANALYZER:
| Parameter | Type | Description | Default |
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extraction.exclusiveOfficeLock | boolean | If you need text extraction for large binary content files of Microsoft Office file types, the CONTENTANALYZER service might need its full memory for each single file to be processed. If Note: Nevertheless, sufficient RAM is required for the CONTENTANALYZER service. | false |
mimetype.extension.redetection | comma-separated list of mime types | The standard calculation is based on the analysis of the binary content itself. In case a determined mime type is wrong, it is possible to reanalyze the file considering the file ending. The mime types for which this second analysis step should be triggered are listed here. | 'image/x-portable-greymap' |
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