Need to disable resolving the DTD

Question

Hi
I need to do a task like the following
I have a XML file template which have an external DTD reference. This task takes this template XML file and creates a new XML file with some additional information. So in this case how can I disable the validation of this XML file against the external DTD. I need to have the DTD reference in both the XML files but do not want parser to resolve it.
Thanks in advance
Biju.

Answer 1

DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
db.setEntityResolver(new EntityResolver() {
  public InputSource resolveEntity(java.lang.String publicId, java.lang.String systemId)
         throws SAXException, java.io.IOException
    if (systemId.endsWith(".dtd"))
      // this deactivates all DTDs by giving empty XML docs
      return new InputSource(new ByteArrayInputStream("<?xml version='1.0' encoding='UTF-8'?>".getBytes()));
    else return null;
});