Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you 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 static javax.xml.xpath.XPathConstants.NODESET;

import java.util.ArrayList;

import java.util.List;

import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;

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

public class Main {
    /**
     * Uses the passed XPath expression to locate a set of nodes in the passed element.
     * @param targetNode The node to search.
     * @param expression The XPath expression.
     * @return A list of located nodes.
     */
    public static List<Node> xGetNodes(Node targetNode, String expression) {
        List<Node> nodes = new ArrayList<Node>();
        XPath xpath = null;
        try {
            xpath = XPathFactory.newInstance().newXPath();
            XPathExpression xpathExpression = xpath.compile(expression);
            NodeList nodeList = (NodeList) xpathExpression.evaluate(targetNode, NODESET);
            if (nodeList != null) {
                for (int i = 0; i < nodeList.getLength(); i++) {
                    nodes.add(nodeList.item(i));
                }
            }
            return nodes;
        } catch (Exception e) {
            throw new RuntimeException("XPath:Failed to locate the nodes:" + expression, e);
        }
    }
}