Resolving url after document() function has been called by the xslt

Question

I am having problems resolving a URI when document() function in my xslt is called. The xml document that is being called has a reference to a dtd that is in another location of the webserver. When document() is called it downloads the xml document then tries to download the referenced dtd from the same location. I get an error kinda like this.
file:///C:/dev.xsl; Line 15; Column 62; Can not load requested doc: File "http://dev.server.com/templatedata/lhj/story/data/dcr4.5.dtd" not found.
The DTD is in a different location on the server and that is why it can not find it. I have tried resolving the URL but have been unsucessfull. See my java solution that does not work. How can I fix this? Any assistance will be greatly appreciated
Java solution
try {
TransformerFactory tFactory = TransformerFactory.newInstance();
tFactory.setURIResolver(new XMLURIResolver());
Transformer transformer = tFactory.newTransformer(new StreamSource(xslFile));
File f = new File(xmlFile);
FileReader fr = new FileReader(f);
InputSource inputSource = new InputSource(fr);
transformer.transform(new SAXSource(inputSource),
new StreamResult(new FileOutputStream(outPutPath)));
Vince.

Answer 1

here is the resolver. The if in never excuted.
public class XMLURIResolver implements URIResolver{
public static final String DTD_HREF = "dcr4.5.dtd";
public Source resolve(String s, String s1) throws TransformerException{
System.out.println("s = "+ s);
System.out.println("s1 = " + s1);
InputStreamReader isr = null;
try{
if (s.indexOf(DTD_HREF) != -1){
System.out.println("Fetching DTD....");
URL url = new URL("http://mydomain/xml/validation/dcr4.5.dtd");
isr= new InputStreamReader(url.openStream());
return new SAXSource(new InputSource(isr));
}catch(MalformedURLException mue){
System.out.println(mue);
}catch(IOException ioe){
System.out.println(ioe);
return null;
}