Convert mxGraphModel XML to PNG on server side - mxgraph

Question

I'm trying to integrate mxGraph in a small project and I would like to convert XML-files (with a mxGraphModel conatiner in it) stored on the server to PNG and PDF (and serve them as download).
I have the XML files on the server ready, but i can't find a possibility to convert them on server side (in a JAVA surflet) to PNG.
Here a sample XML-File:
<mxGraphModel>
<root>
<mxCell id="0"/>
<mxCell id="1" parent="0"/>
<mxCell id="2" value="Hello" parent="1" vertex="1">
<mxGeometry x="20" y="20" width="80" height="30" as="geometry"/>
</mxCell>
<mxCell id="3" value="World" parent="1" vertex="1">
<mxGeometry x="200" y="150" width="80" height="30" as="geometry"/>
</mxCell>
<mxCell id="4" value="" parent="1" source="2" target="3" edge="1">
<mxGeometry relative="1" as="geometry"/>
</mxCell>
</root>
</mxGraphModel>
Is there a way to do this on the server side ?
Best Regards,
Jens

Answer 1

I recently did this using :
the Xml2Svg demo program included in the draw.io source code, it converts mxgraph xml to svg file. Be carreful simple shapes are converted well, but not complex draw.io custom shapes
Batik library to convert svg to a PNG file
PS : I also included this process into a mvn pdf:pdf custom Mojo with no success : the Batik library are in conflict between Batik and the pdf mojo
Didier