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https://issues.apache.org/jira/browse/TIKA-1528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14288002#comment-14288002
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Nick Burch commented on TIKA-1528:
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If you know for certain what the content type is, could you explain why you
even need to run a Detector at all?
> Add an OverrideDetector that overrides other detectors
> ------------------------------------------------------
>
> Key: TIKA-1528
> URL: https://issues.apache.org/jira/browse/TIKA-1528
> Project: Tika
> Issue Type: Improvement
> Reporter: Tim Allison
> Priority: Minor
>
> While working on TIKA-1511, I found a need to bypass our current detection
> mechanism. I think that there are other use cases for this. The idea is
> that a client or a tika-internal call wants to specify the Content-Type for a
> document and bypass the regular mime detection chain.
> We currently have the TypeDetector that returns the "Content-Type" as
> specified in the Metadata, but there are two deficiencies in using that class
> for this purpose:
> * Content-Type is ambiguous, currently, when it comes into a Parser or
> Detector, it could be used as a hint or as a direction. I'd like the
> OverrideDetector to use a different metadata key from our usual "Content-Type.
> * The ordering of the TypeDetector is based on alphabetic order of its class
> name. I'd like the OverrideDetector to be run first and then short
> circuit/bypass the other detectors.
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