lets you print a W3C DOM Object

DomPrinter.java

package com.cray.utils;

import java.io.StringWriter;

import javax.xml.transform.Result;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;

public class DomPrinter {
	public static final TransformerFactory tfactory = TransformerFactory.newInstance();
	public static final Transformer xform;
	static {
		try {
			xform = tfactory.newTransformer();
		} catch (TransformerConfigurationException e) {
			// TODO Auto-generated catch block
			throw new RuntimeException(e);
		} // end try/catch
	}
	
	/**
	 * 
	 * @see http://blogs.oracle.com/reynolds/entry/printing_xml
	 * @param doc
	 * @return
	 */
	public static String convertDom( Document doc ) {
		// First of all create an empty org.w3c.dom.XMLTransform.
		// Then wrap the DOM into a javax.xml.transform.Source.
		javax.xml.transform.Source src = new DOMSource(doc);
		//Now create a java.io.StringWriter to receive the output and wrap it into a javax.xml.transform.stream.StreamResult.
		StringWriter writer = new StringWriter();
		Result result = new StreamResult(writer);
		// Finally use your empty transform to read from the source (your XML document in DOM format), apply a transform (a do nothing transform) and write the result (to your StreamResult which in turn is based on a StringWriter).
		try {
			xform.transform(src, result);
		} catch (TransformerException e) {
			e.printStackTrace();
		} // end try/catch
		
		// We can now extract the DOM as a text string by using the toString method on the StringWriter that we created.
		return writer.toString();
	} // end method
}