org.ebayopensource.turmeric.eclipse.utils.xml.XMLUtil.java Source code

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Here is the source code for org.ebayopensource.turmeric.eclipse.utils.xml.XMLUtil.java

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/*******************************************************************************
 * Copyright (c) 2006-2010 eBay Inc. All Rights Reserved.
 * 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
 *******************************************************************************/
/**
 * 
 */
package org.ebayopensource.turmeric.eclipse.utils.xml;

import java.io.StringWriter;
import java.io.Writer;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.apache.commons.io.IOUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Node;

/**
 * The Class XMLUtil.
 *
 * @author yayu
 */
public final class XMLUtil {

    /**
     * 
     */
    private XMLUtil() {
        super();
    }

    /**
     * Convert xml to string.
     *
     * @param node the node
     * @return the string
     * @throws TransformerFactoryConfigurationError the transformer factory configuration error
     * @throws TransformerException the transformer exception
     */
    public static String convertXMLToString(final Node node)
            throws TransformerFactoryConfigurationError, TransformerException {
        if (node == null)
            return "";

        final Transformer t = TransformerFactory.newInstance().newTransformer();
        StringWriter sw = null;
        try {
            sw = new StringWriter();
            t.setOutputProperty(OutputKeys.INDENT, "yes");
            t.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
            if ((node instanceof Document) == false) {
                t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
            }
            t.transform(new DOMSource(node), new StreamResult(sw));
        } finally {
            IOUtils.closeQuietly(sw);
        }

        return sw.toString();
    }

    /**
     * Write xml.
     *
     * @param node the node
     * @param writer the writer
     * @throws TransformerFactoryConfigurationError the transformer factory configuration error
     * @throws TransformerException the transformer exception
     */
    public static void writeXML(final Node node, final Writer writer)
            throws TransformerFactoryConfigurationError, TransformerException {
        if (node == null || writer == null)
            return;

        final Transformer t = TransformerFactory.newInstance().newTransformer();
        try {
            t.setOutputProperty(OutputKeys.INDENT, "yes");
            t.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
            if ((node instanceof Document) == false) {
                t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
            }
            t.transform(new DOMSource(node), new StreamResult(writer));
        } finally {
            IOUtils.closeQuietly(writer);
        }

    }
}