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package nokogiri.internals;
import java.io.IOException;
import nokogiri.XmlDocument;
import org.apache.xerces.parsers.DOMParser;
import org.apache.xerces.parsers.XIncludeParserConfiguration;
import org.apache.xerces.xni.parser.XMLParserConfiguration;
import org.cyberneko.dtd.DTDConfiguration;
import org.w3c.dom.Document;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
/**
* Sets up a Xerces/XNI DOM Parser for use with Nokogiri. Uses
* NekoDTD to parse the DTD into a tree of Nodes.
*
* @author Patrick Mahoney <pat@polycrystal.org>
*/
public class NokogiriDomParser extends DOMParser
{
protected DOMParser dtd;
protected boolean xInclude;
protected XMLParserConfiguration config;
public
NokogiriDomParser(XMLParserConfiguration config)
{
super(config);
this.config = config;
initialize();
}
public
NokogiriDomParser(ParserContext.Options options)
{
xInclude = options.xInclude;
initialize();
}
protected void
initialize()
{
if (config == null) {
if (xInclude) {
config = new XIncludeParserConfiguration();
} else {
config = getXMLParserConfiguration();
}
}
DTDConfiguration dtdConfig = new DTDConfiguration();
dtd = new DOMParser(dtdConfig);
config.setDTDHandler(dtdConfig);
config.setDTDContentModelHandler(dtdConfig);
}
@Override
public void
parse(InputSource source) throws SAXException, IOException
{
dtd.reset();
if (xInclude) {
setEntityResolver(new NokogiriXInlcudeEntityResolver(source));
}
super.parse(source);
Document doc = getDocument();
if (doc == null) {
throw new RuntimeException("null document");
}
doc.setUserData(XmlDocument.DTD_RAW_DOCUMENT, dtd.getDocument(), null);
}
private static class NokogiriXInlcudeEntityResolver implements org.xml.sax.EntityResolver
{
InputSource source;
private
NokogiriXInlcudeEntityResolver(InputSource source)
{
this.source = source;
}
@Override
public InputSource
resolveEntity(String publicId, String systemId)
throws SAXException, IOException
{
if (systemId != null) { source.setSystemId(systemId); }
if (publicId != null) { source.setPublicId(publicId); }
return source;
}
}
}
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