Hello,
i use FOP in a servlet together with the Saxon XSL processor.
I implemented the communication between the processors as
a SAX event stream. The following code snippet was developed
with FOP 0.20.1, i think with 0.20.2 i could use the Driver
again but i don't want to bother with this yet.
Transformer transformer=getTransformer(xslFile);
// setup FOP
org.apache.fop.system.BufferManager bufferManager
=new org.apache.fop.system.BufferManager();
org.apache.fop.fo.FOTreeBuilder treeBuilder
=new org.apache.fop.fo.FOTreeBuilder();
treeBuilder.setBufferManager(bufferManager);
org.apache.fop.fo.ElementMapping mapping;
mapping=(org.apache.fop.fo.ElementMapping)Class.forName(
"org.apache.fop.fo.StandardElementMapping").newInstance();
mapping.addToBuilder(treeBuilder);
[ more mapping code lifted from Driver.java snipped ]
org.apache.fop.apps.StreamRenderer streamRenderer
= new org.apache.fop.apps.StreamRenderer(out,
new org.apache.fop.render.pdf.PDFRenderer());
treeBuilder.setStreamRenderer(streamRenderer);
[ setting up log snipped - a nightmare! ]
// the transformer gets its input data wia a customized XMLReader
// from the servlet parameters
transformer.transform(new SAXSource(new DocXMLReader(),
new DocServletParameterInputSource(req)),
new SAXResult(treeBuilder));
byte[] content = out.toByteArray();
res.setContentType("application/pdf");
res.setContentLength(content.length);
res.getOutputStream().write(content);
res.getOutputStream().flush();
The problem i want help about is the exception
[ERROR]: Could not set base URL for svg
java.net.MalformedURLException: no protocol:
at java.net.URL.<init>(URL.java:473)
at java.net.URL.<init>(URL.java:376)
at java.net.URL.<init>(URL.java:330)
at org.apache.fop.svg.SVGElement.layout(SVGElement.java:143)
at
org.apache.fop.fo.flow.InstreamForeignObject.layout(InstreamForeignObject.java:198)
at org.apache.fop.fo.flow.Block.layout(Block.java:259)
Fortunately, the file renders fine, the missing information is
aparently not needed.
The SVG is defined in the XSL file. How do i set the base URL for
the SVG element, just in order to pacifiy the software? Should i use
a real file name (for example the name of the XSL file) or is it
sufficient to use ""?
J.Pietschmann
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