Tyler Palsulich created TIKA-1420:
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Summary: Add Metadata Extraction to Arbitrary Parsers
Key: TIKA-1420
URL: https://issues.apache.org/jira/browse/TIKA-1420
Project: Tika
Issue Type: Improvement
Components: parser
Reporter: Tyler Palsulich
Priority: Minor
Suppose you wish to extract information from arbitrary file types and add it to
a Metadata Object. This type of task is best handled by a... Handler. But,
Handlers do not have access to the Metadata Object passed to a Parser.
So, I see a few ways we could do using existing functionality.
1) Make an intermediate XML representation of the desired metadata in a
handler, then convert the XML to the Metadata after parsing.
2) Create a second Parser which extracts the desired information.
a) Assume the Handler passed to this Parser is already filled with
content. So, we could simply get whatever content from the Handler and populate
the Metadata directly.
b) Create a new Stream in the first Parser to pass to the second, which in
turn populates the Metadata.
None of these options seem ideal. Is there a better way to handle this
scenario? Or, can we create some sort of... wrapper for a Handler which can
accept a Metadata Object to populate directly?
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