Bernhard Geisberger created TIKA-3627:
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Summary: OOXML parsing is not working as intended using multiple
threads
Key: TIKA-3627
URL: https://issues.apache.org/jira/browse/TIKA-3627
Project: Tika
Issue Type: Bug
Affects Versions: 2.2.0
Reporter: Bernhard Geisberger
In the latest version, the parsing of OOXML files is broken if multiple threads
are used. I investigated and compared the call stack between 2.1.0 and 2.2.0,
and came to the conclusion that this is caused by [this
commit|https://github.com/apache/tika/commit/10d925439cd862f74679ec5fa9a9b5863f50ce2c]
in line 86 of OOXMLExtractorFactory.
In version 2.1.0, the call
`ExtractorFactory.setThreadPrefersEventExtractors(true)` is used in every
`parse` call, resulting in setting the thread-local property for every thread.
In version 2.2.0, the call is used in the static block. This leads to the
property being the default value (=false) for all other threads than the first
one. Effectively, this breaks the parsing of macros in OOXML files.
An easy workaround in version 2.2.0 is to call
`ExtractorFactory.setAllThreadsPreferEventExtractors(true)` at some time before
tika is used first.
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