[TIKA-2678] Bug in TikaConfig / ServiceLoader

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.18
• Component/s: config
• Assignee: Unassigned
• Reporter: Olivier Schmitt
• Created: 20/Jun/18 19:44
• Updated: 22/Jun/18 02:00

Description

I have been puzzled by inability to turn off warning messages on the console during service loading, such as :

[12:36:28]  Jun 20, 2018 12:36:28 PM org.apache.tika.config.InitializableProblemHandler$3 handleInitializableProblem

Looking through the java source code, I can see that the problem may be in this method:

TikaConfig.XmlLoader.loadOne()

In this method, we initialize the initializableProblemHandler using default or using the user settings from xml config file, but this variable doesn't seem to get passed down to the createComposite() code or the service loader, so in the end the user settings from xml configuration file do not get taken into account.

For reference, I have defined my tika config xml as so:

<?xml version="1.0" encoding="UTF-8"?>
<properties>
<parsers>
<!-- Default Parser for most things, except for 2 mime types, and never
use the Executable Parser -->
<parser class="org.apache.tika.parser.DefaultParser" initializableProblemHandler="IGNORE">
<mime-exclude>image/jpeg</mime-exclude>
<mime-exclude>application/pdf</mime-exclude>
<parser-exclude class="org.apache.tika.parser.executable.ExecutableParser"/>
</parser>
<!-- Use a different parser for PDF -->
<parser class="org.apache.tika.parser.EmptyParser">
<mime>application/pdf</mime>
</parser>
</parsers>
</properties>

I am specifically trying to turn off messages for org.apache.tika.parser.pdf.PDFParser
The messages are printed when executing java code:

TikaConfig config = new TikaConfig("tika-config.xml");