[TIKA-3789] Allow parsers to pass embedded metadata to container file's metadata

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Tim Allison
• Created: 09/Jun/22 12:42
• Updated: 09/Jun/22 15:08

Description

There are some use cases where custom parsers might want to pass metadata from embedded files to the parent's metadata in the /tika (json) output or programmatically.

We can follow the pattern in TIKA-3788.

As with TIKA-3788, this metadata will be written after the parse so it will not show up in standard xhtml output (e.g. /tika (html/xhtml) or programmatically in the XHTMLContentHandler). However, it will appear in the json output option from /tika and in the Metadata object programmatically.

As with TIKA-3788, we encourage using the /rmeta endpoint, -J in tika-app or the RecursiveParserWrapper instead of this option. However, for those who need to work with a flattened view of a document, this can be invaluable.