Java XPath Evaluate evalXPathAsStringList(Object item, String xpath, XPathFactory factory, boolean includeDuplicates)

Description

eval X Path As String List

License

Apache License

Declaration

public static List<String> evalXPathAsStringList(Object item, String xpath, XPathFactory factory,
            boolean includeDuplicates) throws XPathExpressionException 

Method Source Code

//package com.java2s;
/*/*from w ww  .j  a  va  2 s . co m*/
 * Copyright (C) 2016 Hamburg Sud and the contributors.
 *
 * 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.util.ArrayList;
import java.util.List;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.NodeList;

public class Main {
    public static List<String> evalXPathAsStringList(Object item, String xpath, XPathFactory factory,
            boolean includeDuplicates) throws XPathExpressionException {
        NodeList nl = evalXPathAsNodeList(item, xpath, factory);

        List<String> result = new ArrayList<String>(nl.getLength());

        for (int i = 0; i < nl.getLength(); i++) {
            String text = nl.item(i).getTextContent();
            if (includeDuplicates || !result.contains(text)) {
                result.add(text);
            }
        }

        return result;
    }

    public static NodeList evalXPathAsNodeList(Object item, String xpath, XPathFactory factory)
            throws XPathExpressionException {
        XPath path = factory.newXPath();
        XPathExpression expr = path.compile(xpath);
        return (NodeList) expr.evaluate(item, XPathConstants.NODESET);
    }
}

Related

1. evalXPath(Node node, String xPath)
2. evalXPath(String expression, Object item, Class type)
3. evalXPath(String path, Document doc)
4. evalXpath(String xpath, Object item)
5. evalXPathAsString(Object item, String xpath, XPathFactory factory)
6. executeXPath(Document dom, String xpath, QName returnType)
7. executeXPathExpression(Document document, String expression)
8. execXPath(org.w3c.dom.Node node, String pattern, QName xPathConstantsType)
9. findNodeAndGetXPath(String qName, String fileName)