EDIT

package eu.etaxonomy.cdm.jaxb;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.Writer;

import javax.xml.XMLConstants;

import javax.xml.bind.JAXBContext;

import javax.xml.bind.JAXBException;

import javax.xml.bind.Marshaller;

import javax.xml.transform.Source;

import javax.xml.transform.stream.StreamSource;

import javax.xml.validation.Schema;

import javax.xml.validation.SchemaFactory;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.xml.sax.SAXException;

import eu.etaxonomy.cdm.model.DataSet;

import eu.etaxonomy.cdm.strategy.cache.reference.BookDefaultCacheStrategy;

/*

Initializes a JaxbContext with one class (eu.etaxonomy.cdm.model.DataSet) 

Binds it to XML schemas found in /src/main/resources/schema/cdm (cdm.xsd, common.xsd, name.xsd).

There is a bit of magic with a resource resolver in eu.etaxonomy.cdm.jaxb

which allows to package the schemas into a jar file.

*/

public class CdmDocumentBuilder {

	private static Log log = LogFactory.getLog(CdmDocumentBuilder.class);

	private JAXBContext jaxbContext;

	private Marshaller marshaller;

	public static String CDM_NAMESPACE = "eu.etaxonomy.cdm.model";

	public static String[] CDM_SCHEMA_FILES = { "/schema/cdm/common.xsd",

		                                        "/schema/cdm/name.xsd",

		                                        "/schema/cdm/cdm.xsd" };

	public CdmDocumentBuilder() throws SAXException, JAXBException, IOException {

//		SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);

//		schemaFactory.setResourceResolver(new CdmResourceResolver());

//		Source[] sources = new Source[CdmDocumentBuilder.CDM_SCHEMA_FILES.length];

//		

//		for(int i = 0; i < CdmDocumentBuilder.CDM_SCHEMA_FILES.length; i++) {

//			String schemaName = CdmDocumentBuilder.CDM_SCHEMA_FILES[i];

//			sources[i] = new StreamSource(this.getClass().getResourceAsStream(schemaName));

//		}

//		Schema cdmSchema = schemaFactory.newSchema(sources);

		jaxbContext = JAXBContext.newInstance(new Class[] {DataSet.class, BookDefaultCacheStrategy.class});

		marshaller = jaxbContext.createMarshaller();

		marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);

		// validate with explicit schema

		//marshaller.setSchema(cdmSchema);

	}

	public void write(DataSet dataSet, Writer writer) throws JAXBException {

		marshaller.marshal(dataSet, writer);

	}

//	public void writeFile(DataSet dataSet, File file) throws JAXBException {

//		marshaller.marshal(dataSet, file);

//	}

}