Converts an org.w3c.dom.Node to an XML string using an identity transform. - Java XML

Java examples for XML:XML Transform

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Description

Converts an org.w3c.dom.Node to an XML string using an identity transform.

Demo Code

/*/* www.  ja v  a  2s.co  m*/
 * ElementNode
 * by Keith Gaughan <kmgaughan@eircom.net>
 *
 * Copyright (c) Keith Gaughan, 2006. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Common Public License v1.0, which accompanies this
 * distribution and is available at http://www.opensource.org/licenses/cpl1.0.php
 */
import java.io.StringWriter;
import java.util.Arrays;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Node;

public class Main{
    /**
     * Converts an <code>org.w3c.dom.Node</code> to an XML string using an
     * identity transform.
     *
     * @param  node  Node to convert.
     *
     * @return Node as an XML document.
     */
    public static String toString(final Node node) {
        if (node == null) {
            return "";
        }
        StringWriter writer = new StringWriter();
        transform(new DOMSource(node), new StreamResult(writer));
        return writer.toString();
    }
    /**
     * Wraps up the nastiness that is the Java XML transformation API for
     * doing an identity transform, which allows an XML document to be
     * converted to a string.
     *
     * @param  source  Document source to convert.
     * @param  result  Object to which transformation is written.
     */
    public static void transform(final Source source, final Result result) {
        final TransformerFactory tf;
        final Transformer t;

        try {
            tf = TransformerFactory.newInstance();
            t = tf.newTransformer();
            t.transform(source, result);
        } catch (Exception ex) {
            // Should *never* happen, but...
            throw new XmlException(
                    "Could not do identity transform on XML document.", ex);
        }
    }
}

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