Copies all attributes from one XML element to another in the official way. - Java XML

Java examples for XML:XML Attribute

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Description

Copies all attributes from one XML element to another in the official way.

Demo Code

/*/*  w w  w  . j a va 2s  .  com*/
 * Copyright (C) 2010  Just Objects B.V.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
//package com.java2s;
import org.w3c.dom.*;

public class Main {
    /**
     * Copies all attributes from one element to another in the official way.
     */
    public static void copyAttributes(Element elementFrom, Element elementTo) {
        NamedNodeMap nodeList = elementFrom.getAttributes();
        if (nodeList == null) {
            // No attributes to copy: just return
            return;
        }

        Attr attrFrom = null;
        Attr attrTo = null;

        // Needed as factory to create attrs
        Document documentTo = elementTo.getOwnerDocument();
        int len = nodeList.getLength();

        // Copy each attr by making/setting a new one and
        // adding to the target element.
        for (int i = 0; i < len; i++) {
            attrFrom = (Attr) nodeList.item(i);

            // Create an set value
            attrTo = documentTo.createAttribute(attrFrom.getName());
            attrTo.setValue(attrFrom.getValue());

            // Set in target element
            elementTo.setAttributeNode(attrTo);
        }
    }
}

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