I can't add a JAR from a plugin to the DITA OT 3.3.1 classpath

[Damien Bories]

Hi everyone,

I am writing a plugin for DITA OT PDF2. This plugin needs extension functions, so I followed the tutorials from the DITA OT website:

https://www.dita-ot.org/3.3/topics/implement-saxon-extension-functions.html

and

https://www.dita-ot.org/3.3/topics/plugin-javalib.html

The jar is next to the plugin.xml file and I have this feature:

<feature extension="dita.conductor.lib.import" file="./xslt-extension.jar"/>

Sadly, I get an XSLT compilation error:




transform.topic2fo.main:
 [pipeline] Static error in {ftd:lastApplicability()} in expression in xsl:variable/@select on line 30 column 79 of applicability.xsl:
 [pipeline]   XPST0017: Cannot find a 0-argument function named {https://orlandotechpubs.com/}lastApplicability()
 [pipeline] Static error near {...eApplicability($applicabili...} in expression in xsl:value-of/@select on line 99 column 69 of applicability.xsl:
 [pipeline]   XPST0017: Cannot find a 1-argument function named {https://orlandotechpubs.com/}writeApplicability()

I double checked everything and my extension functions are defined correctly. So I tried to debug by creating a simple java "main" that I call from a target:

    <target name="testJava">
      <java classname="com.infotel.ftd.MyTest">
      </java>
    </target>

The target is called before "clean-temp" in the pipeline:

 <feature extension="depend.preprocess.clean-temp.pre" value="testJava"/>

And now I get the following error:

 [java] Could not find com.infotel.ftd.MyTest. Make sure you have it in your classpath

So I understand that my JAR file is not added to the classpath, but why? I even looked in env.bat and the jar is listed there:

set "CLASSPATH=%CLASSPATH%;%DITA_HOME%\plugins\org.dita.pdf2\lib\fo.jar"
set "CLASSPATH=%CLASSPATH%;%DITA_HOME%\plugins\com.infotel.orlando.pdf\xslt-extension.jar"
set "CLASSPATH=%CLASSPATH%;%DITA_HOME%\plugins\org.dita.eclipsehelp\lib\eclipsehelp.jar"
set "CLASSPATH=%CLASSPATH%;%DITA_HOME%\plugins\org.dita.htmlhelp\lib\htmlhelp.jar"
set "CLASSPATH=%CLASSPATH%;%DITA_HOME%\plugins\org.dita.pdf2.axf\lib\axf.jar"
...

[Radu Coravu]

Hi Damien,

I commented on your stack overflow post:

https://stackoverflow.com/questions/58857784/how-to-add-a-plugin-jar-into-the-dita-ot-classpath

In addition, how are you running the DITA OT? You should try to run it using the "dita" command which properly loads all JAR libraries: https://www.dita-ot.org/dev/topics/build-using-dita-command.html

Regards,

Radu

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[Damien Bories]

Hi Radu,

This was my problem indeed. I realised that yesterday night. I was using an ant build to launch DITA OT and apparently the JAR libraries are not loaded automatically.

I switched to the "dita.bat" command line and now my extension functions are seen by the XSLT.

Best regards.

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