[jdom-interest] Turning off DTD validation within JDOMSource

[Laurent Bihanic]

Hi Gary,

Good news: SAXOutputter has been patched as you suggested. So, if you download 
the latest revision from CVS, the following code should prevent DTD parsing:

     JDOMSource src = new JDOMSource(doc);
     src.getXMLReader().setFeature("http://xml.org/sax/features/validation", 
false);

Hope this helps,

Laurent


Laurent Bihanic wrote:
> 
> Hi Gary,
> 
> (Sorry for the late response.)
> 
> The problem you're probably having here is that you probably set a 
> DocType on your JDOM documents. To behave as close as possible to a real 
> XML parser, JDOMSource relies on SAXOutputter that tries (when the XSLT 
> transformer requests) to provide the information present in the DTD. For 
> that, it runs an XML parser on the DocType to generate DTD events 
> towards the XSLT processor.
> 
> "When the XSLT transformer requests" actually means when the XSLT 
> transformer registers a LexicalHandler and/or a DeclHandler on the 
> JDOMSource-provided XMLReader, i.e. SAXOutputter.
> 
> There's currently no way to configure JDOMSource or SAXOutputter not to 
> try to parse the DTD. But you may try one of the following:
>  - Prevent the XSLT processor to register the listed handlers (not 
> possible, I think!)
>  - Reset the DocType of the document before calling transform()
>  - Hack JDOMSource/SAXOutputter to add a flag to prevent DTD parsing
> 
> For the last option, have a look at the method dtdEvents() in SAXOutputter.
> 
> Laurent
> 
> 
> Gary Lawrence Murphy wrote:
> 
>>>>>>> "G" == Gary Lawrence Murphy <garym at canada.com> writes:
>>>>>>
>>>>>>
>>
>>     G> Transformer xslt = TransformerFactory.newInstance()
>>     G> .newTransformer(new StreamSource(xsl)); xslt.transform(new
>>     G> JDOMSource(dom), newdom);
>>
>>     G> Is there some way to tell the JDOMSource (or the
>>     G> TransformerImpl) that it should ignore the DTD?
>>
>> According to the API docs, the following should work, but it doesn't:
>>
>>     JDOMSource jds = new JDOMSource(dom);
>>     jds.getXMLReader().setFeature(
>>                       "http://xml.org/sax/features/validation",
>>                       false); // ignore DTD
>>
>> What is the correct way to do this?
>>