net.sf.webdav.util.XMLHelper Maven / Gradle / Ivy

/**
 * Copyright (C) 2006-2017 Apache Software Foundation (https://sourceforge.net/p/webdav-servlet, https://github.com/Commonjava/webdav-handler)
 *
 * 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.
 */
package net.sf.webdav.util;

import java.util.ArrayList;
import java.util.List;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class XMLHelper {

    public static Node findSubElement(Node parent, String localName) {
        if (parent == null) {
            return null;
        }
        Node child = parent.getFirstChild();
        while (child != null) {
            if ((child.getNodeType() == Node.ELEMENT_NODE)
                    && (child.getLocalName().equals(localName))) {
                return child;
            }
            child = child.getNextSibling();
        }
        return null;
    }

    public static List getPropertiesFromXML(Node propNode) {
        ArrayList properties;
        properties = new ArrayList();
        NodeList childList = propNode.getChildNodes();

        for (int i = 0; i < childList.getLength(); i++) {
            Node currentNode = childList.item(i);
            if (currentNode.getNodeType() == Node.ELEMENT_NODE) {
                String nodeName = currentNode.getLocalName();
                String namespace = currentNode.getNamespaceURI();
                // href is a live property which is handled differently
                properties.add(namespace + ":" + nodeName);
            }
        }
        return properties;
    }

}