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A. Apesteguia
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‎.gitignore

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# Eclipse
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.classpath
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.project
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.settings/
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# Intellij
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.idea/
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*.iml
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*.iws
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out/
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artifacts/
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# Mac
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.DS_Store
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# Maven
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log/
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target/

‎pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.codepressed</groupId>
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<artifactId>CodepressedConverter</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<maven.compiler.source>1.11</maven.compiler.source>
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<maven.compiler.target>1.11</maven.compiler.target>
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</properties>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.12</version>
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<scope>compile</scope>
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</dependency>
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</dependencies>
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</project>

‎src/main/java/com/codepressed/CSVtoXML/Main.java

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package com.codepressed.CSVtoXML;
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import org.w3c.dom.Document;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.TransformerException;
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import java.io.IOException;
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import java.util.ArrayList;
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public class Main {
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public static void main(String[] args){
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//Initialization
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String csvFile = args[0];
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String xmlFile = args[1];
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//ArrayList of ArrayStrings Generation with CSV
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ArrayList<String[]> elements = null;
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try {
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elements = new Reader().CSVtoArrayList(csvFile);
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} catch (IOException e) {
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System.out.println("File wasn't found, error: "+e);;
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}
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//XML Doc Generation with ArrayList
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Document xmlDoc = null;
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try {
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xmlDoc = new Util().docBuilder(elements);
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} catch (ParserConfigurationException e) {
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System.out.println("Configuration error: "+e);;
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}
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//Transform xml DOC to a xml FILE
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try {
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Util.transform(xmlDoc,xmlFile);
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} catch (TransformerException e) {
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System.out.println("Transformer error: "+e);;
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}
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}
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}

‎src/main/java/com/codepressed/CSVtoXML/Reader.java

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package com.codepressed.CSVtoXML;
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import java.io.*;
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import java.util.ArrayList;
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public class Reader {
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/*/
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ArrayList Generation ArrayStrings with the CSV Data
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*/
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public ArrayList<String[]> CSVtoArrayList(String csvFile) throws IOException {
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ArrayList<String[]> elements = new ArrayList<String[]>();
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String csvSplit = ",(?=([^\"]*\"[^\"]*\")*[^\"]*$)";
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String line = "";
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BufferedReader csvReader = null;
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try {
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csvReader = new BufferedReader(new FileReader(csvFile));
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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}
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while ((line = csvReader.readLine()) != null) {
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String[] nodes = line.split(csvSplit);
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elements.add(nodes);
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}
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return elements;
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}
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}

‎src/main/java/com/codepressed/CSVtoXML/Util.java

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package com.codepressed.CSVtoXML;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.Text;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.*;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.util.ArrayList;
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public class Util {
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/*/
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DOC Generation -> XML with ArrayList String elements
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*/
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public Document docBuilder(ArrayList<String[]> elements) throws ParserConfigurationException {
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DocumentBuilderFactory xmlFactory = DocumentBuilderFactory.newInstance();
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DocumentBuilder xmlBuilder = xmlFactory.newDocumentBuilder();
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Document xmlDoc = xmlBuilder.newDocument();
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Element rootElement = xmlDoc.createElement("root");
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xmlDoc.appendChild(rootElement);
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Element mainElement = xmlDoc.createElement("elements");
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rootElement.appendChild(mainElement);
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boolean headerDefined = false; //First while will be to define header
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String[] header = new String[elements.size()]; //Header initialization
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/*/
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DOC Generation -> XML Generation of every ELEMENT
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*/
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for (String[] node : elements) { //FOR every ArrayString
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if (headerDefined) {
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Element nodesElements = xmlDoc.createElement("element");
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mainElement.appendChild(nodesElements);
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for (int j = 0; j < node.length; j++) {
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node[j] = node[j].replaceAll("\"", "").trim();
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Element nodesValues = xmlDoc.createElement(header[j]);
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nodesElements.appendChild(nodesValues);
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Text nodeTxt = xmlDoc.createTextNode(node[j]);
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nodesValues.appendChild(nodeTxt);
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}
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}
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/*/
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DOC Generation -> Array Generation of every COL Name for NODES
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*/
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else {
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header = node;
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for (int k = 0; k < node.length; k++) {
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header[k] = header[k].replaceAll("[^a-zA-Z0-9]", "");
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//We want to make sure NODE isn't NUMERIC. If it is, we make a patch
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try {
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Integer.parseInt(header[k]);
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header[k] = "node" + header[k];
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} catch (NumberFormatException e) {
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}
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}
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headerDefined = true;
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}
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}
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return (xmlDoc);
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}
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/*/
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XML Generation -> Transform DOC Data to XML Format
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*/
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public static void transform(Document xmlDoc, String xmlFile) throws TransformerException {
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TransformerFactory xmlTransformerFactory = TransformerFactory.newInstance();
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Transformer xmlTransformer = xmlTransformerFactory.newTransformer();
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xmlTransformer.setOutputProperty(OutputKeys.INDENT, "yes");
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xmlTransformer.setOutputProperty(OutputKeys.METHOD, "xml");
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xmlTransformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
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xmlTransformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
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FileOutputStream outputStream = null;
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try {
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outputStream = new FileOutputStream((new File(xmlFile)));
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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}
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xmlTransformer.transform(new DOMSource(xmlDoc), new StreamResult(outputStream));
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}
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}
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‎src/test/java/Main.java

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import org.junit.Test;
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import org.w3c.dom.*;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.*;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import java.io.*;
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import java.util.ArrayList;
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public class Main {
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@Test
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public void FinalCSVReader() throws IOException, ParserConfigurationException, TransformerException {
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//Initialization
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String csvFile = "C:\\Users\\Dani\\testing\\grades.csv";
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String line = "";
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String csvSplit = ",(?=([^\"]*\"[^\"]*\")*[^\"]*$)";
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//CSV BufferedReader
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BufferedReader csvReader;
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csvReader = new BufferedReader(new FileReader(csvFile));
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//ArrayList of ArrayStrings
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ArrayList<String[]> elements = new ArrayList<String[]>();
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//CSV to ArrayList of ArrayStrings
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while ((line = csvReader.readLine()) != null) {
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String[] nodes = line.split(csvSplit);
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elements.add(nodes);
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}
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//XML Root elements generation
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DocumentBuilderFactory xmlFactory = DocumentBuilderFactory.newInstance();
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DocumentBuilder xmlBuilder = xmlFactory.newDocumentBuilder();
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Document xmlDoc = xmlBuilder.newDocument();
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Element rootElement = xmlDoc.createElement("root");
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xmlDoc.appendChild(rootElement);
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Element mainElement = xmlDoc.createElement("elements");
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rootElement.appendChild(mainElement);
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boolean headerDefined = false; //First while will be to define header
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String[] header = new String[elements.size()]; //Header initialization
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//XML Node elements generation
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for (String[] node : elements) { //FOR every ArrayString
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if (headerDefined) {
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Element nodesElements = xmlDoc.createElement("element");
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mainElement.appendChild(nodesElements);
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for (int j = 0; j < node.length; j++) {
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node[j] = node[j].replaceAll("\"", "").trim();
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//System.out.println(node[j]);
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//System.out.println(header[j] + " owo");
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Element nodesValues = xmlDoc.createElement(header[j]);
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nodesElements.appendChild(nodesValues);
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Text nodeTxt = xmlDoc.createTextNode(node[j]);
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nodesValues.appendChild(nodeTxt);
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}
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}
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//Header generation
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else{
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header = node; //Header has a independent array
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for (int k = 0; k < node.length; k++) {
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header[k] = header[k].replaceAll("[^a-zA-Z0-9]", "");
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//We want to make sure NODE isn't NUMERIC. If it is, we make a patch
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try {
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Integer.parseInt(header[k]);
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header[k] = "node" + header[k];
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} catch (NumberFormatException e) {
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}
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}
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headerDefined = true;
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}
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}
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//XML File OutputFormat
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TransformerFactory xmlTransformerFactory = TransformerFactory.newInstance();
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Transformer xmlTransformer = xmlTransformerFactory.newTransformer();
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xmlTransformer.setOutputProperty(OutputKeys.INDENT, "yes");
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xmlTransformer.setOutputProperty(OutputKeys.METHOD, "xml");
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xmlTransformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
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xmlTransformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
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FileOutputStream outputStream = new FileOutputStream((new File("C:\\Users\\Dani\\testing\\XMLoutput.xml")));
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xmlTransformer.transform(new DOMSource(xmlDoc), new StreamResult(outputStream));
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}
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}

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