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https://issues.apache.org/jira/browse/TIKA-1445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14217965#comment-14217965
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Tim Allison edited comment on TIKA-1445 at 11/19/14 3:01 PM:
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How about using the order of parsers as specified in TikaConfig? That should
accommodate 6 class files in different jars, no?
Via TikaConfig, we could also specify the which subclass of a default composite
parser to use. I now see at least three use cases:
1) Tika classic: pick the first parser that applies and hope that it is the one
you meant, ignore the others. :)
2) The use case we've been discussing, where each parser is additive.
3) A BackOffOnExceptionParser (TIKA-1483 got me thinking about this)
Wait, for Tika 2.0, couldn't we do all the class loading from TikaConfig? We
could also get rid of our one-off parser config hacks (like Solr):
{noformat}
<parser class="org.apache.tika.parser.audio.AudioParser">
<params>
<int name="someparam1">2</int>
<str name="someOtherParam2">something or other</str>
</params>
<mime>audio/basic</mime>
<mime>audio/x-aiff</mime>
<mime>audio/x-wav</mime>
</parser>
{noformat}
We could specify a ChainingParser on the fly via config:
{noformat}
<parser class="org.apache.tika.parser.ChainingParser"
name="MyOCRAndMetadataParser">
<childparser>org.apache.tika.parser.jpeg.JPegParser</childparser>
<childparser>...</childparser>
<childparser>...</childparser>
<childparser>org.apache.tika.parser.ocr.TesseractOCR</childparser>
<mime>image/bmp</mime>
<mime>image/gif</mime>
<mime>image/png</mime>
<mime>image/vnd.wap.wbmp</mime>
<mime>image/x-icon</mime>
<mime>image/x-ms-bmp</mime>
<mime>image/x-xcf</mime>
</parser>
{noformat}
was (Author: talli...@mitre.org):
How about using the order of parsers as specified in TikaConfig? That should
accommodate 6 class files in different jars, no?
Via TikaConfig, we could also specify the which subclass of a default composite
parser to use. I now see at least three use cases:
1) Tika classic: pick the first parser that applies and hope that it is the one
you meant, ignore the others. :)
2) The use case we've been discussing, where each parser is additive.
3) A BackOffOnExceptionParser (TIKA-1483 got me thinking about this)
> Figure out how to add Image metadata extraction to Tesseract parser
> -------------------------------------------------------------------
>
> Key: TIKA-1445
> URL: https://issues.apache.org/jira/browse/TIKA-1445
> Project: Tika
> Issue Type: Bug
> Components: parser
> Reporter: Chris A. Mattmann
> Assignee: Chris A. Mattmann
> Fix For: 1.8
>
> Attachments: TIKA-1445.Mattmann.101214.patch.txt,
> TIKA-1445.Palsulich.102614.patch, TIKA-1445_tallison_20141027.patch.txt,
> TIKA-1445_tallison_v2_20141027.patch, TIKA-1445_tallison_v3_20141027.patch
>
>
> Now that Tesseract is the default image parser in Tika for many image types,
> consider how to add back in the metadata extraction capabilities by the other
> Image parsers.
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