Hi,

This may be a problem that I have fixed.
The line number (167) doesn't seem to match anything I can find so I'm not
sure.
There was a problem where text outside the root element would cause a null
pointer exception.

Actually after a second look I think it was due to the stream redner
changes.
Could you try the current cvs and see if that helps.

Thanks
Keiron

On Thu, 20 Sep 2001 08:46:08 "Beer, Christian" wrote:
> Hi Savino, hi Suhail, hi group!
> 
> In the moment I transform my source-xml to a ByteArrayOutputStream and
> then
> use a ByteArrayInputStream as input for FOP. 
> 
> I tried to do it the same way as Suhails example, but I get the same
> error
> Savino got.
> 
> How can I be sure there are no nulls in the source??
> 
> Christian
> 
> -----Ursprüngliche Nachricht-----
> Von: Suhail Rashid [mailto:[EMAIL PROTECTED]]
> Gesendet: Donnerstag, 20. September 2001 06:29
> An: [EMAIL PROTECTED]
> Betreff: RE: Does render(dom) actually work?
> 
> 
> Hi Savino,
> 
> Make sure there 
> are NO nulls making their way
> into the text nodes of your xml stream.
> <these would not give problems if u 
> wrote the xml to a file first>
> 
> suhail
> 
> -----Original Message-----
> From: Savino, Matt C [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, September 20, 2001 3:59 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: Does render(dom) actually work?
> 
> 
> Yuri, thanks for your help. I tried your solution and I still get the
> following error:
> 
> building formatting object tree
> building formatting object tree
> javax.xml.transform.TransformerException
>         at
> org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerIm
> pl.j
> ava:1212)
>         at
> org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.j
> ava:
> 479)
>         at
> org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.j
> ava:
> 1118)
>         at FOtoPDF.applyFop(FOtoPDF.java:127)
>         at FOtoPDF.main(FOtoPDF.java:40)
> ---------
> java.lang.NullPointerException
>         at
> org.apache.fop.fo.FOTreeBuilder.startDocument(FOTreeBuilder.java:167)
>         at
> org.apache.xalan.transformer.QueuedStartDocument.flush(QueuedStartDocume
> nt.j
> ava:108)
>         at
> org.apache.xalan.transformer.ResultTreeHandler.flushPending(ResultTreeHa
> ndle
> r.java:758)
>         at
> org.apache.xalan.transformer.ResultTreeHandler.startElement(ResultTreeHa
> ndle
> r.java:245)
>         at
> org.apache.xalan.transformer.ResultTreeHandler.startElement(ResultTreeHa
> ndle
> r.java:209)
>         at
> org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.j
> ava:
> 704)
>         at
> org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Trans
> form
> erImpl.java:2154)
>         at
> org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Trans
> form
> erImpl.java:2097)
>         at
> org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(Transfo
> rmer
> Impl.java:2029)
>         at
> org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerIm
> pl.j
> ava:1189)
>         at
> org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.j
> ava:
> 479)
>         at
> org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.j
> ava:
> 1118)
>         at FOtoPDF.applyFop(FOtoPDF.java:127)
>         at FOtoPDF.main(FOtoPDF.java:40)
> 
> It looks very similar to the one before to me. Has anyone tried this
> with
> v.0.20.1 yet? Should it say "building formatting object tree" twice? I'm
> wondering if this is some kind of issue with namespaces and the DOM2
> implementation. Anyone have any ideas?
> 
> By the way, if I use a DOMResult instead of a SAXResult I get no error.
> I
> then serialized the DOMResult to a file and FO works fine with that file
> as
> an input. 
> 
> Thanks,
> Matt
> 
> 
> > -----Original Message-----
> > From: Shkuro, Yuri [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, September 19, 2001 2:03 PM
> > To: '[EMAIL PROTECTED]'
> > Subject: RE: Does render(dom) actually work?
> > 
> > 
> > Matt,
> > 
> >   Why don't you do it all in one pass?  I have a servlet, that calls
> > some bean to get XML document in a DOM format (actually JDOM), then
> > registers fop driver as receiver of SAX events and runs XSLT on the
> > JDOM tree.
> > 
> >             // 1. Generate XML tree
> >             Document xmlSummary = DataLoader.getSummary();
> > 
> >             // 2. Get stylesheet transformer
> >             Transformer transformer = 
> > transformerFactory.getTransformer(
> > <xsl-file> );
> > 
> >             // 3. Create FOP driver and set rendering mode 
> > and output stream
> >             org.apache.fop.apps.Driver driver = new
> > org.apache.fop.apps.Driver();
> >             driver.setRenderer(driver.RENDER_PDF);
> >             driver.setOutputStream( out );
> > 
> >             // 4. Create SAXResult based on FOP Driver 
> > content handler which
> > will accept 
> >             // SAX events and build FOP tree
> >             javax.xml.transform.sax.SAXResult saxResult =
> >                 new javax.xml.transform.sax.SAXResult(
> > driver.getContentHandler() );
> > 
> >             // 5. Use the Transformer to transform an XML 
> > Source and send
> > the output 
> >             // to a Result object.
> >             // Implicitely it will create the FOP tree by 
> > firing SAX events
> >             transformer.transform( new 
> > org.jdom.transform.JDOMSource( xml ),
> > saxResult );
> > 
> > YS
> > 
> > -----Original Message-----
> > From: Savino, Matt C [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, September 19, 2001 4:33 PM
> > To: '[EMAIL PROTECTED]'
> > Subject: Does render(dom) actually work?
> > 
> > 
> > Hello everyone. By any chance can someone point me to some 
> > example code
> > which uses render(dom)?  No matter what combination of driver 
> > methods or Fop
> > versions (.17,.19,.20.1) I use I seem to get the same error:
> > 
> > building formatting object tree
> > setting up fonts
> > java.lang.NullPointerException
> >         at java.util.Hashtable.get(Hashtable.java:320)
> >         at
> > org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:191)
> >         at
> > org.apache.fop.tools.DocumentReader.parse(DocumentReader.java:444)
> >         at org.apache.fop.apps.Driver.render(Driver.java:449)
> >         at FOtoPDF.applyFop(FOtoPDF.java:83)
> >         at FOtoPDF.main(FOtoPDF.java:24)
> > 
> > Here is the source I'm using under v.0.20.1:
> >       org.apache.fop.apps.Driver driver = new 
> > org.apache.fop.apps.Driver();
> >       driver.setRenderer(org.apache.fop.apps.Driver.RENDER_PDF);
> >       driver.setOutputStream(new FileOutputStream(pdfFilename));
> >       driver.setupDefaultMappings() ;
> >       
> > driver.addElementMapping("org.apache.fop.fo.StandardElementMapping");
> >       
> > driver.addElementMapping("org.apache.fop.svg.SVGElementMapping");
> >  
> > driver.addElementMapping("org.apache.fop.extensions.ExtensionE
> > lementMapping"
> > );
> >       driver.render(dom);
> > 
> > I have tried it with and without any of the mapping methods.
> > 
> > I am building the Dom object from a file. The sax input 
> > handler created from
> > the same file works fine in render(parser, inputSource). I 
> > have read through
> > the dev archives and found a few suggestions but none helped. 
> > Is there some
> > configuration I'm missing? Or did this "break a long time 
> > ago" as someone
> > suggested in the archives?
> > 
> > I am hoping to use FOP in a major production app, but if I 
> > can't solve this
> > I may not be able to. I am currently receiving a DOM object 
> > (a small report)
> > from some database access classes. I then perform an XSLT 
> > transform which
> > outputs my FO input as another DOM object. I suppose I could 
> > pipe the output
> > of that to SAX? I'd really rather not have to do anything klugy like
> > serialize it to a stream and then feed it in as SAX. But I'll consider
> > anything that doesn't cause too much of a performace hit. We 
> > definitely
> > don't want to have temp files sitting around, for a host of reasons.
> > 
> > Thank you very much for your help.
> > 
> > Matt Savino

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