Chetan Mehrotra created OAK-2895:
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Summary: Provide config option to exclude certain mimeTypes from
getting indexed
Key: OAK-2895
URL: https://issues.apache.org/jira/browse/OAK-2895
Project: Jackrabbit Oak
Issue Type: Improvement
Components: lucene
Reporter: Chetan Mehrotra
Assignee: Chetan Mehrotra
Priority: Minor
Fix For: 1.3.0, 1.2.3, 1.0.15
Currently the recommended way to exclude certain types of files from getting
indexed is to add them to {{EmptyParser}} in Tika Config. However looking at
how Tika works even if mimetype is provided as part metadata.
Tika Detector try to determine the mimetype by actually reading some bytes from
InputStream [1] before looking up from passed MetaData. This would cause
unnecessary IO in case large number of binaries are excluded.
To avoid this IO we should expose a multi value config property which takes a
list of mimetypes to be excluded from indexing. If the mimeType provided as
part of JCR data is part of that excluded list then call to Tika should be
avoided
[1]
https://github.com/apache/tika/blob/trunk/tika-core/src/main/java/org/apache/tika/mime/MimeTypes.java#L446
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