Working XML: Wrapping up XM version 1

        
public Source resolve(String href,String base)
{
   if(href.endsWith(".xsl"))
   {
      File file = new File(rulesDir,href);
      if(file.exists())
         return new StreamSource(file);
   }
   else if(href.startsWith("x-source:") && docsDir != null)
   {
      File file = new File(docsDir,href.substring(9));
      if(file.exists())
         return new StreamSource(file);
      else
         return new StreamSource(new StringReader("<xm:NotAvailable xmlns:xm='http://www.ananas.org/2001/XM/Walk/Directory'/>"),"file:null");
   }
   return null;
}