Java XPath Get getNodesByPath(String path, Element localElement, Document doc)

Description

get Nodes By Path

License

Apache License

Declaration

public static NodeList getNodesByPath(String path, Element localElement, Document doc)
            throws XPathExpressionException 

Method Source Code

//package com.java2s;
/*/*from www . j a v  a  2  s  . c  om*/
 *    Copyright (c) 2013, University of Toronto.
 *
 *    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 javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import org.w3c.dom.NodeList;

public class Main {
    static XPathFactory factory = XPathFactory.newInstance();

    public static NodeList getNodesByPath(String path, Element localElement, Document doc)
            throws XPathExpressionException {
        // Note: if using absolute path, then the root element must also be specified,
        // that is, it should be like "/clinical_studies/clinical_study/..."
        XPath xpath = factory.newXPath();
        Object element = path.startsWith("/") || localElement == null ? doc : localElement;
        NodeList nodeList = (NodeList) xpath.evaluate(path, element, XPathConstants.NODESET);
        return nodeList;
    }
}

Related

1. getNodeList(Node xmlNode, String xpathString)
2. getNodeList(Reader reader, String expression)
3. getNodeListAsArray(Node doc, String xpath)
4. getNodeListAttValAsStringCol(final String xPath, final Node node, final String attrName)
5. getNodes(Node node, String expStr)
6. getNodesByXPath(Document doc, XPathExpression expr)
7. getNodesByXPath(Element parent, String name)
8. getNodesListXpathNode(final String xPath, final Node node)
9. getNodeText(XPath xpath, String xp, Node n)