Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * 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.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

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.Document;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class Main {
    public static Integer slowGetValue = 0;

    public static NodeList loadNodeList(String file, String path) {
        try {
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder;
            builder = factory.newDocumentBuilder();
            Document doc = builder.parse(file);

            return getDocNodeList(doc, path);
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
        } catch (SAXException e) {
            System.out.println("ERROR: your xml file " + file + " is not well-formed");
            // e.printStackTrace();         
        } catch (IOException e) {
            System.out.println("ERROR: input file " + file + " not found");
            // e.printStackTrace();
        }

        return null;
    }

    public static NodeList getDocNodeList(Document xmlDoc, String path) {
        // NodeList list = (NodeList) expr.evaluate(xmlDoc, XPathConstants.NODESET);
        return getNodeList(xmlDoc, path);
    }

    public static NodeList getNodeList(Node node, String path) {
        try {
            slowGetValue++;
            // System.out.println("slow : " + slowGetValue + " - " + path);

            XPathFactory xPathFactory = XPathFactory.newInstance();
            XPath xpath = xPathFactory.newXPath();
            XPathExpression expr;
            expr = xpath.compile(path);
            NodeList list = (NodeList) expr.evaluate(node, XPathConstants.NODESET);

            return list;
        } catch (XPathExpressionException e) {
            e.printStackTrace();
        }
        return null;
    }
}