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Posted to dev@poi.apache.org by bu...@apache.org on 2015/01/19 14:21:06 UTC

[Bug 57463] OutOfMemeoryError while extracting text from DOCX files

https://issues.apache.org/bugzilla/show_bug.cgi?id=57463

Nick Burch <ap...@gagravarr.org> changed:

           What    |Removed                     |Added
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             Status|NEW                         |NEEDINFO

--- Comment #1 from Nick Burch <ap...@gagravarr.org> ---
For XSSF, we have a low-level SAX+helper based way to extract text. It's more
work to code for, but low memory

Currently, we haven't had any volunteers to work on one for XWPF / .docx.
Because the basic structure of a .docx file is more flexible than .xlsx, I
suspect it'll be a bit more work to do, but shouldn't be impossible. Please
head over to the dev list if you're interested in working on this!

Otherwise, I wonder if it might be possible to lazy-load some parts of files
like that one, to help keep the memory footprint down. Are you able to profile
it to work out what xml elements are taking the most space? (We'll need to know
what part they come from, eg word/styles.xml, and what xml element within that,
eg w:rPr)

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