Transforms a DOM Element into an XML text - Java XML

Java examples for XML:DOM

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Description

Transforms a DOM Element into an XML text

Demo Code

/*/*w  ww  .j ava  2s .co m*/
 * Copyright (C) 2012 Zach Melamed
 * 
 * Latest version available online at https://github.com/zach-m/jonix
 * Contact me at zach@tectonica.co.il
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Element;

public class Main{
    /**
     * Transforms a DOM {@link Element} into an XML text
     * 
     * @param elem
     *            the element to transform into text
     * @param strip
     *            if true, removes the containing tag of the XML node
     * @return an XML text representation of the given element
     */
    public static String elementToString(Element elem, boolean strip) {
        StringWriter sw = new StringWriter();
        try {
            Transformer t = XmlChunkerContext.transformerFactory
                    .newTransformer();
            t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
            t.transform(new DOMSource(elem), new StreamResult(sw));
        } catch (TransformerException e) {
            throw new RuntimeException(e);
        }
        final String content = sw.toString();

        if (strip) {
            final int beginIndex = content.indexOf(">") + 1;
            final int endIndex = content.lastIndexOf("<");
            if (endIndex > beginIndex)
                return content.substring(beginIndex, endIndex);
        }
        return content;
    }
}

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