Dear List,

I need Help with an XProc Pipeline that should generate PDF From DocBook using AH Formatter in a Microsoft Windows 10 Environment. I am using a fresh Installation of Oxygen 24.1.

What i have done so far / current status:

There is a XProc Pipeline which gets the DocBook File as Input, applies the DocBook 1 Stylesheets to generate FO, and applies xsl:formatter to generate PDF from XSL-FO. This Step calls the Apache FOP Processor shipped with Oxygen. It does generate a PDF, but images are not rendered (empty frames of the correct size within the PDF).
The primary result of the Pipeline is the XSL FO generated by the DocBook Stylesheets, so I am able to check the url für external-files in FO. They point to the images in my file system. I have tried many different ways to change this url, including relative paths instead of absolute paths. Nothing helped, the images are still missing.
Because of the missing images and other issues with Apache FOP (landscape Tables etc.) I have to switch to the Antenna House Formatter (v 7.2).
Oxygen Editor allows Integration of Antenna House. After doing so I can apply a Transformation Scenario to the XSL-FO generated by my XProc Pipeline. Works great, the Result is exactly what I need. PDF includes the Images with exactly the same input, on which Apache gave me empty frames. The only thing is, that i have to call this second Transformation scenario manually. It is not integrated in the Pipeline.
So the task seems to be simple: configure the xsl:formatter step in my XProc pipeline, so that Antenna House will be used instead of Apache FOP. But I did not find a way to achieve this.

I do understand that

i have to configure xmlcalabah so that com.xmlcalabash.fo-processor system property gets the value com.xmlcalabash.util.FoAH. The best way would be a xmlcalabash configuration file, but how can I point from Oxygen to that config file? --- I was able to set the java System Property within the Oxygen Startup, and i can see the correct value in the Oxygen Help/About Info Box (that is, the system property com.xmlcalabash.fo-processor has the Value com.xmlcalabash.util.FoA), but the xsl-formatter Step doesn't care. It will still use Apache FOP.
I have to add the jar for the xmlcalabash1-print module to the claasspath. Maybe OXYGEN-INSTALL-DIR/xproc/engine?
I have to point to the directory where xmlcalabash can find the Antenna House jar files and the Licence File. How would I do that within Oxygen?

Any help is greatly appreciated.

Thanks in advance,

Frank Steimke