Exercise correction for my project group

tstImplExo.java

package com.chartgen;
import java.awt.Graphics2D;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
//import java.util.Arrays;
import java.util.List;

import javax.imageio.ImageIO;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.LegendItem;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.chart.title.Title;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DefaultPieDataset;

import com.itextpdf.text.BadElementException;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Image;

import java.awt.Font;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.awt.PdfGraphics2D;
import com.itextpdf.awt.geom.Dimension;

import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;

import com.itextpdf.text.pdf.PdfTemplate;
import com.itextpdf.text.pdf.PdfWriter;


public class Main {

	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		/*ChartQuery quer = null;
		try {
			quer = new ChartQuery(Arrays.asList(new String[]{"Type2", "MonTitre", "5", "Right", "Name", "Salary"}));
			CSVParser parser = CSVParser.parse(new File("resources/Salaries.csv"), StandardCharsets.UTF_8, CSVFormat.RFC4180);
			for(CSVRecord parsed : parser) {
				System.out.println(parsed.toString());
			}
			List<ChartQuery> queryList = QueryListBuilder.buildFromFile("resources/QueryTst.csv");
			for(ChartQuery query : queryList) {
				System.out.println(query.toString());
			}
		}
		catch(QueryCreationException e) {
			System.out.println(e.getMessage());
		}
		System.out.println(quer.toString());
		System.out.println("Print command line : ");
		for(String c : args) {
			System.out.println(c);
		}*/

		CommandLineParser cmd = null;
		try {
			cmd = new CommandLineParser(args);
			if(cmd.isValid()) {

				List<ChartQuery> l = QueryListBuilder.buildFromFile(cmd.getQueryFile());
				for(ChartQuery query : l) {
					System.out.println(query);
				}
			}
		} catch (InvalidCSVFormatException | BadCommandLineArgumentException e) {
			// TODO Auto-generated catch block
			System.out.println(e.getMessage());
		}
		
		/* Create the document object.
		 * At this point, no real file was created.
		 */
		Document doc = new Document();
		//http://developers.itextpdf.com/examples/itext-action-second-edition/chapter-14#515-directorcharts.java
		//http://www.jfree.org/phpBB2/viewtopic.php?p=71791
		//http://developers.itextpdf.com/examples/tables/cell-and-table-widths#1428-fullpagetable.java
		//http://developers.itextpdf.com/question/how-resize-image-fit-it-pdfpcell
		//http://api.itextpdf.com/itext/com/itextpdf/text/pdf/PdfPTable.html
		//http://api.itextpdf.com/itext/com/itextpdf/text/pdf/PdfPCell.html
		/* Now we need to create the writer to be able to output our
		 * our document to the pdf format
		 */	
		PdfWriter writer = null;
		try {
			writer = PdfWriter.getInstance(doc, new FileOutputStream("MyPDF.pdf"));
			doc.open();
		} catch (DocumentException e) {
			// We need to handle the case where the document creation failed.
			e.printStackTrace();
		}
		
		PdfContentByte rawData = writer.getDirectContent();
		
		JFreeChart pieChart1 = null;
		DefaultPieDataset dataset = new DefaultPieDataset();
		dataset.setValue("Multimedia", 1);
		dataset.setValue("Loisir", 1);
		dataset.setValue("Alimentation", 1);
		
		pieChart1 = ChartFactory.createPieChart(null, dataset);
		LegendTitle legend = (LegendTitle)pieChart1.getLegend();
		legend.setItemFont(new Font("SansSerif", java.awt.Font.BOLD, 18));
		pieChart1.removeLegend();
		pieChart1.addLegend(legend);
		PiePlot plot = (PiePlot) pieChart1.getPlot();
		plot.setLabelGenerator(null);
		pieChart1.setTitle(new TextTitle("Avril type de dépenses", new Font("SansSerif", java.awt.Font.BOLD, 24)));

		BufferedImage img1 = pieChart1.createBufferedImage(35*24, 35*32);
		ByteArrayOutputStream basImg1 = new ByteArrayOutputStream();
		ImageIO.write(img1, "png", basImg1);
		byte[] rawImg1 = basImg1.toByteArray();
		
		File out = new File("chart.png");
		ImageIO.write(img1, "png", out);
		//pieChart1.setLabelFont()
		
		float pieChart1Width = (float)35*6;
		float pieChart1Height = (float)35*4;
		//pieChart1.setPreferredSize(new Dimension(pieChart1Width, pieChart1Height));
		
		/*PdfTemplate pieChart1Template = rawData.createTemplate(pieChart1Width, pieChart1Height);
		Graphics2D g2d1 = new PdfGraphics2D(pieChart1Template, pieChart1Width, pieChart1Height);
		Rectangle2D r2d1 = new Rectangle2D.Double(0, 0, pieChart1Width, pieChart1Height);
		
		pieChart1.draw(g2d1,  r2d1);
		g2d1.dispose();
		rawData.addTemplate(pieChart1Template, 250, 250);*/
		
		PdfPTable table = new PdfPTable(4);
		table.setWidthPercentage(100);
	    table.setSpacingBefore(0f);
	    table.setSpacingAfter(0f);
	    
	    PdfContentByte cb = writer.getDirectContent();
	    
		PdfPCell cell = null;
		//doc.add(new Chunk(""));
		try {
			cell = new PdfPCell(Image.getInstance(cb, img1, 1), true);
		} catch (BadElementException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		try {
			//cell.setFixedHeight(35*4);
			table.addCell(Image.getInstance(cb, img1, 1));
			table.addCell(Image.getInstance(cb, img1, 1));
			table.addCell(Image.getInstance(cb, img1, 1));
			table.completeRow();
			System.out.println(table.getRows().size());
		} catch (BadElementException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		try {
			doc.add(table);
		} catch (DocumentException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		doc.close();
	}

}