metier.Freechart.java Source code

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Here is the source code for metier.Freechart.java

Source

/*
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package metier;

import DAO.ProduitDAO;
import Entity.Produit;
import static java.awt.Component.TOP_ALIGNMENT;
import java.sql.Connection;
import java.util.List;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import util.ConnexionMySql;

/**
 *
 * @author Sahrour
 */
public class Freechart {

    private static Freechart instance;

    private Connection connexion;

    private Freechart() {
        connexion = ConnexionMySql.getInstance().getConnection();

    }

    public static Freechart getInstance() {
        if (instance == null) {
            instance = new Freechart();
        }
        return instance;
    }

    public void stats() {
        List<Produit> produits = ProduitDAO.getInstance().readAll();

        DefaultPieDataset pieDataset = new DefaultPieDataset();
        for (Produit pr : produits) {
            pieDataset.setValue(pr.getNom(), new Integer(pr.getQuantiteInitial() - pr.getQuantiteDisponible()));

        }
        JFreeChart chart = ChartFactory.createPieChart("Pie Chart", pieDataset, true, true, true);
        //.createPieChart(PieChart, pieDataset, true, true, true);
        PiePlot P = (PiePlot) chart.getPlot();
        P.setForegroundAlpha(TOP_ALIGNMENT);
        ChartFrame frame = new ChartFrame("Pie Chart", chart);
        frame.setVisible(true);
        frame.setSize(450, 500);

    }

}