krysalis-viprom/src/java/org/krysalis/viprom/utils XsltUtils.java,NONE,1.1

Update of /cvsroot/metamorphosis/krysalis-viprom/src/java/org/krysalis/viprom/utils
In directory sc8-pr-cvs1:/tmp/cvs-serv21451/src/java/core/org/krysalis/viprom/utils

Added Files:
	XsltUtils.java 
Log Message:
Still trying to ensure SF.net CVS has this...

--- NEW FILE: XsltUtils.java ---
/*
 * Created on Oct 27, 2003
 */
package org.krysalis.viprom.utils;

import java.io.StringReader;

import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.URIResolver;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;

import org.krysalis.version.util.SystemUtils;
import org.krysalis.version.util.dom.DOMUtils;
import org.w3c.dom.Document;

/**
 * @author ajack
 */
public class XsltUtils {
	private static TransformerFactory l_factory = null;

	static {
		l_factory = TransformerFactory.newInstance();
	}

	// :TODO: From resource (i.e. in JAR) via clasloader
	// have pre-defined XSLTs in there 
	// :TODO: named or groups?

	public Transformer getTransformerFromURL(String url, URIResolver resolver)
		throws Exception {
		Transformer transform = l_factory.newTransformer(new StreamSource(url));

		if (null != resolver)
			transform.setURIResolver(resolver);

		return transform;
	}

	public Transformer getTransformerFromString(
		String data,
		URIResolver resolver)
		throws Exception {
		Transformer transform =
			l_factory.newTransformer(new StreamSource(new StringReader(data)));

		if (null != resolver)
			transform.setURIResolver(resolver);

		return transform;
	}

	public Document transform(Transformer transform, Document input)
		throws Exception {

		// Create a documemt ..							
		Document output = DOMUtils.createDocument();

		transform(transform, input, output);

		return output;
	}

	public Document transform(
		Transformer transform,
		Document input,
		Document output)
		throws Exception {
		DOMSource in = new DOMSource(input);
		DOMResult out = new DOMResult();

		DOMUtils.dump(SystemUtils.getSystemOut(), input);

		transform.transform(in, out);

		//:TODO:
		DOMUtils.crossInsert(
			output,
			DOMUtils.getRootElement(output),
			out.getNode());

		DOMUtils.dump(SystemUtils.getSystemOut(), output);

		return output;
	}

}




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