Hi,
I want to build a PDF file with a XSL transformation. I use FOP 0.93 on
Tomcat 4.3 (Windows)
1) I load the XSLT
2) I create a DOM Document
3) I create de DOMSource Element
4) I process the XSL transformation
public ByteArrayOutputStream convertDocumentToPDF(DOMSource source,
String xsltPath) throws IOException, FOPException, TransformerException,
Exception {
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
// configure foUserAgent as desired
// Setup output
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
// Construct fop with desired output format
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
// Setup XSLT
TransformerFactory factory = TransformerFactory.newInstance();
//Setup Transformer
System.out.println("xsltPath:"+ xsltPath);
File xslFile = new File(xsltPath);
Source xsltSrc = new StreamSource(xslFile);
Transformer transformer = factory.newTransformer(xsltSrc);
// Resulting SAX events (the generated FO) must be piped through to FOP
Result res = new SAXResult(fop.getDefaultHandler());
if(source == null) throw new Exception("Document DOMSource est null");
// Start XSLT transformation and FOP processing
Line 180 ---> transformer.transform(source, res);
fop = null;
} finally {
out.close();
}
return out;
}
The problem is that ther is an error on the line
transformer.transform(source, res);
Here is the detail of the error message
java.lang.NullPointerException at
org.apache.fop.area.AreaTreeHandler.endDocument(AreaTreeHandler.java: 416)
at org.apache.fop.fo.FOTreeBuilder.endDocument(FOTreeBuilder.java:171)
at
org.apache.xalan.transformer.ResultTreeHandler.endDocument(ResultTreeHandler.java:192)
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1224)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:668)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1129)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1107)
at
com.adelis.roederer.fop.DecompteSante.convertDocumentToPDF(DecompteSante.java:180)
I looked at the source of the endDocument method of the AreaTreeHandler
class. I did not understant why is the Exception thrown :
/**
* End the document.
*
* @throws SAXException if there is some error
*/
public void endDocument() throws SAXException {
finishPrevPageSequence(null);
// process fo:bookmark-tree
Line 416 : --> BookmarkTree bookmarkTree = rootFObj.getBookmarkTree();
Has anybody any idea ? What is this rootFObj ?
Regards,
Xavier
--
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Xavier Ottolini
Développeur multimédia
Adelis
37 rue d'Engwiller
67350 La Walck
France
Téléphone : +33 (0) 3 69 20 29 02
Télécopie : +33 (0) 3 88 72 29 19
http://www.adelis.com
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