Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;

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

public class Main {
    public static void removeElementFromXml(String xmlFile, String nodeName)
            throws ParserConfigurationException, SAXException, IOException, TransformerException {

        Document doc = getXmlDoc(xmlFile);

        NodeList nodes = doc.getChildNodes();

        NodeList childNodes = nodes.item(0).getChildNodes();

        for (int i = 0; i < childNodes.getLength(); i++) {

            if (childNodes.item(i).getNodeName().equals(nodeName)) {

                nodes.item(0).removeChild(childNodes.item(i));
            }
        }
        saveXml(doc, xmlFile);
    }

    public static Document getXmlDoc(String xmlFile)
            throws ParserConfigurationException, SAXException, IOException {

        DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
        domFactory.setIgnoringComments(true);
        domFactory.setIgnoringElementContentWhitespace(true);
        DocumentBuilder builder = domFactory.newDocumentBuilder();
        Document doc = builder.parse(new File(xmlFile));
        return doc;
    }

    public static void saveXml(Document modDoc, String path) throws TransformerException, IOException {
        Writer writer = null;
        try {
            TransformerFactory tranFactory = TransformerFactory.newInstance();
            Transformer aTransformer = tranFactory.newTransformer();
            Source src = new DOMSource(modDoc);
            writer = getFileWriter(path);
            Result dest = new StreamResult(writer);

            aTransformer.setOutputProperty(OutputKeys.INDENT, "yes");
            aTransformer.setOutputProperty(OutputKeys.METHOD, "xml");
            aTransformer.transform(src, dest);
        } catch (TransformerException e) {
            throw e;
        } finally {

            writer.close();
        }

    }

    public static FileWriter getFileWriter(String filePath) {

        File xmlFile = new File(filePath);
        FileWriter writer = null;
        try {
            writer = new FileWriter(xmlFile);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return writer;
    }
}