Castor Transformer

[Harald Wehr]

I am using a Cocoon-Developer-Snapshot from October this year.
The Castor Transformer i fetched from CVS. Unfortunately this class uses a lot of deprecated stuff. Additionally i have to serialize a java-object stored in my xmlform.

So i tried to write my own transformer. The code is attached here. The Castor Marshaller needs a Sax-ContentHandler that I get by calling the variable "contentHandler", available in the transformer.

Following Exception do I get. Do I have to set the Sax-Parser in the Properties? When I set the Sax-Parser from cocoon.xconf additionally in the properties i get a ClassNotFoundException.

When i replace the deprecated Classes from the CVS-transformer same things happen.

Any help is appreciated.

Harald



------------Exception--------------------
org.xml.sax.SAXException: System property org.xml.sax.parser not specified
at org.xml.sax.helpers.ParserAdapter.<init>(ParserAdapter.java:104)
at org.exolab.castor.xml.Marshaller.<init>(Unknown Source)
at de.mobiharz.cocoon.transformation.MobiHarzXMLFormTransformer.startElement(MobiHarzXMLFormTransformer.java:45)
at org.apache.cocoon.xml.AbstractXMLPipe.startElement(AbstractXMLPipe.java:130)
at org.apache.cocoon.transformation.AbstractSAXTransformer.startElement(AbstractSAXTransformer.java:340)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:459)
at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:221)
at org.apache.xerces.impl.XMLNamespaceBinder.handleStartElement(XMLNamespaceBinder.java:874)
at org.apache.xerces.impl.XMLNamespaceBinder.emptyElement(XMLNamespaceBinder.java:591)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:747)
...


----------Transformer---------------------
package de.mobiharz.cocoon.transformation;

import org.apache.cocoon.components.xmlform.Form;
import org.apache.cocoon.transformation.XMLFormTransformer;
import org.apache.commons.jxpath.JXPathContext;
import org.exolab.castor.xml.Marshaller;
import org.xml.sax.AttributeList;
import org.xml.sax.Attributes;
import org.xml.sax.HandlerBase;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;

import de.mobiharz.model.buchungen.Unterkunft;


public class MobiHarzXMLFormTransformer extends XMLFormTransformer {

public void startElement(
String namespaceURI,
String localName,
String qName,
Attributes attributes)
throws SAXException {
if (namespaceURI.equals("") && localName.equals("xmlformergebnis")) {

try {
String formName = attributes.getValue("xmlform-id");
String objectPath = attributes.getValue("xpath");
Form form = Form.lookup(objectModel, formName);

JXPathContext context =
JXPathContext.newContext(form.getModel());

Object o = context.getValue(objectPath);
// System.out.println(o);
super.startElement(
"",
"xmlformergebnis",
"xmlformergebnis",
attributes);

Marshaller marshaller = new Marshaller(contentHandler);
Unterkunft u = (Unterkunft)o;

marshaller.marshal(o);

} catch (Exception e) {
e.printStackTrace();
super.startElement(
"",
"xmlformergebnis",
"xmlformergebnis",
attributes);
}
} else
super.startElement(namespaceURI, localName, qName, attributes);
}

public void endElement(String namespaceURI, String localName, String qName)
throws SAXException {

if ((namespaceURI != null)) {

if (namespaceURI.equals("") && localName.equals("xmlformergebnis"))
super.endElement("", "xmlformergebnis", "xmlformergebnis");
else
super.endElement(namespaceURI, localName, qName);
}
}

}



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