Sexy PrimeFaces Charts in RichFaces

Introduction

I was asked to look at various charting solutions for JSF. Specifically, I was asked for some choices for use with RichFaces 4.3.1. I knew that PrimeFaces has really good chart components already so I knew it might be kind of fun to integrate them if possible. I was also aware of JFreeChart which will work, but produces some... rather ugly charts. Finally, someone had suggested that I look at jsflot. This was a very promising solution. This project is a proof of concept which demonstrates integration between projects, and technologies.

Requirements

jsflot
NetBeans This is required for the sample database, although you could create your own data.

The jsflot framework is currently not Mavenized, so if you are going to run my example code, you will need to download it from the link above, and install it in Maven using the command below.

1	`mvn` `install:install-file` `-Dfile=jsflot-0.7.0.jar -DgroupId=org.jsflot -DartifactId=jsflot -Dversion=0.7.0 -Dpackaging=jar -Dsource=jsflot-0.7.0-src.zip`

Code

The code for this NetBeans Maven project can be found on BitBucket here: chart-demo

This is the bean that provides the data models for the charting solutions. There are a number of chart demos in the project. The two charts above are just examples.

ChartBean.java

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package com.bluelotussoftware.example.jsf;
 
import com.bluelotussoftware.example.model.Customer;
import com.bluelotussoftware.example.model.Product;
import com.bluelotussoftware.example.model.PurchaseOrder;
import com.bluelotussoftware.example.ssb.CustomerFacade;
import com.bluelotussoftware.example.ssb.ProductFacade;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.ejb.EJB;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.context.FacesContext;
import javax.imageio.ImageIO;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jsflot.components.FlotChartRendererData;
import org.jsflot.xydata.XYDataList;
import org.jsflot.xydata.XYDataPoint;
import org.jsflot.xydata.XYDataSetCollection;
import org.primefaces.model.DefaultStreamedContent;
import org.primefaces.model.StreamedContent;
import org.primefaces.model.chart.BubbleChartModel;
import org.primefaces.model.chart.BubbleChartSeries;
import org.primefaces.model.chart.CartesianChartModel;
import org.primefaces.model.chart.ChartSeries;
import org.primefaces.model.chart.MeterGaugeChartModel;
import org.primefaces.model.chart.PieChartModel;
 
/**
 *
 * @author John Yeary
 * @version 1.0
 */
@ManagedBean
@RequestScoped
public class ChartBean {
 
    private Map<Integer, Map<String, Number>> CustomerPurchasesByYearTotals = new HashMap<Integer, Map<String, Number>>();
    private double totalSales;
    //PrimeFaces
    private PieChartModel pieChartModel;
    private CartesianChartModel cartesianChartModel;
    private BubbleChartModel bubbleChartModel;
    private MeterGaugeChartModel meterGaugeChartModel;
    //JSFlot
    private XYDataList series1DataList = new XYDataList();
    private XYDataList series2DataList = new XYDataList();
    private XYDataList series3DataList = new XYDataList();
    private FlotChartRendererData chartData;
    private StreamedContent streamedContent;
    @EJB
    private CustomerFacade cf;
    @EJB
    private ProductFacade pf;
 
    /**
     * Creates a new instance of ChartBean
     */
    public ChartBean() {
    }
 
    @PostConstruct
    private void initialize() throws IOException {
        bubbleChartModel = new BubbleChartModel();
        cartesianChartModel = new CartesianChartModel();
        pieChartModel = new PieChartModel(getSalesByCustomer());
        createCartesianChartModel();
        createBubbleModel();
        createMeterGaugeModel();
 
        //JFreeChart  
        JFreeChart jfreechart = ChartFactory.createPieChart("Products", getPartsDataset(), true, false, false);
        String path = FacesContext.getCurrentInstance().getExternalContext().getRealPath("/");
        File chartFile = new File(path + "dynamichart.png");
        ChartUtilities.saveChartAsPNG(chartFile, jfreechart, 600, 400);
        streamedContent = new DefaultStreamedContent(new FileInputStream(chartFile), "image/png");
 
 
        chartData = new FlotChartRendererData();
 
        for (int i = 0; i <= 100; i++) {
            NumberFormat nf = NumberFormat.getNumberInstance();
            nf.setMaximumFractionDigits(3);
 
            series1DataList.addDataPoint(new XYDataPoint(i, Math.random() * 10, "Point: " + i));
            series2DataList.addDataPoint(new XYDataPoint(i, Math.random() * 10, "Point: " + i));
            series3DataList.addDataPoint(new XYDataPoint(i, Math.random() * 10));
        }
        series1DataList.setLabel("Series 1");
        series2DataList.setLabel("Series 2");
        series3DataList.setLabel("Series 3");
    }
 
    public PieChartModel getPieChartModel() {
        return pieChartModel;
    }
 
    public BubbleChartModel getBubbleChartModel() {
        return bubbleChartModel;
    }
 
    public CartesianChartModel getCartesianChartModel() {
        return cartesianChartModel;
    }
 
    public MeterGaugeChartModel getMeterGaugeChartModel() {
        return meterGaugeChartModel;
    }
 
    private Map<String, Number> getSalesByCustomer() {
        Map<String, Number> salesByCustomer = new HashMap<String, Number>();
 
        List<customer> customers = cf.findAll();
 
        for (Customer c : customers) {
            double sales = 0.0;
            for (PurchaseOrder p : c.getPurchaseOrderCollection()) {
                sales += p.getProductId().getPurchaseCost().doubleValue() * p.getQuantity();
            }
            salesByCustomer.put(c.getName(), sales);
        }
        return salesByCustomer;
    }
 
    private void createCartesianChartModel() {
        Calendar cal = Calendar.getInstance();
        List<customer> customers = cf.findAll();
        List<integer> customersLessThan10K = new ArrayList<integer>();
        List<integer> customersGreaterThan10K = new ArrayList<integer>();
        Collections.sort(customers);
 
        for (Customer c : customers) {
            double sales = 0.0;
 
            for (PurchaseOrder p : c.getPurchaseOrderCollection()) {
                cal.setTime(p.getSalesDate());
                double vx = p.getProductId().getPurchaseCost().doubleValue() * p.getQuantity();
                addOrUpdate(c.getCustomerId(), String.valueOf(cal.get(Calendar.YEAR)), vx);
                sales += vx;
            }
 
            if (sales < 10000.00) {
                customersLessThan10K.add(c.getCustomerId());
            } else {
                customersGreaterThan10K.add(c.getCustomerId());
            }
            totalSales += sales;
        }
 
        Map<Object, Number> lt10k = new HashMap<Object, Number>();
        Map<Object, Number> gt10k = new HashMap<Object, Number>();
 
        for (Integer i : customersLessThan10K) {
            populateMap(lt10k, CustomerPurchasesByYearTotals.get(i));
        }
 
        for (Integer i : customersGreaterThan10K) {
            populateMap(gt10k, CustomerPurchasesByYearTotals.get(i));
        }
 
        ChartSeries customersLessThan10k = new ChartSeries("Customers with Sales < 10K");
        customersLessThan10k.setData(lt10k);
        ChartSeries customersGreaterThan10k = new ChartSeries("Customers with Sales > 10K");
        customersGreaterThan10k.setData(gt10k);
        cartesianChartModel.addSeries(customersLessThan10k);
        cartesianChartModel.addSeries(customersGreaterThan10k);
    }
 
    private void addOrUpdate(Integer customerId, String year, Number value) {
        Map<String, Number> map = CustomerPurchasesByYearTotals.get(customerId);
 
        if (map == null) {
            map = new HashMap<String, Number>();
            CustomerPurchasesByYearTotals.put(customerId, map);
        }
        Number n = map.get(year);
 
        if (n == null) {
            map.put(year, value);
        } else {
            map.put(year, (map.get(year).doubleValue() + value.doubleValue()));
        }
    }
 
    private void populateMap(Map<Object, Number> map, Map<String, Number> data) {
        if (data == null) {
            return;
        }
        for (String key : data.keySet()) {
            Number n = map.get((Object) key);
            if (n == null) {
                map.put((Object) key, data.get(key));
            } else {
                map.put((Object) key, n.doubleValue() + data.get(key).doubleValue());
            }
        }
    }
 
    private void createBubbleModel() {
        for (Product p : pf.findAll()) {
            bubbleChartModel.add(new BubbleChartSeries(
                    p.getDescription(), //label
                    p.getQuantityOnHand(), // x
                    p.getMarkup().intValue(), //y 
                    p.getPurchaseCost().intValue() //radius
                    ));
        }
    }
 
    private void createMeterGaugeModel() {
        List<number> intervals = new ArrayList<number>() {
            {
                add(200000);
                add(400000);
                add(600000);
                add(800000);
            }
        };
//        meterGaugeChartModel = new MeterGaugeChartModel("Sales", totalSales, intervals); //PrimeFaces 3.3+
        meterGaugeChartModel = new MeterGaugeChartModel(Double.valueOf(totalSales), intervals); //PrimeFaces 3.4+
    }
 
    public XYDataSetCollection getChartSeries() {
        XYDataSetCollection collection = new XYDataSetCollection();
        XYDataList currentSeries1DataList = new XYDataList();
        XYDataList currentSeries2DataList = new XYDataList();
        XYDataList currentSeries3DataList = new XYDataList();
 
        for (int i = 0; i <= 10; i++) {
            long startTime = 1196463600000l;
            if (chartData.getMode().equalsIgnoreCase("Time")) {
                XYDataPoint p1 = new XYDataPoint(series1DataList.get(i).getX(),
                        series1DataList.get(i).getY(), series1DataList.get(i).getPointLabel());
                p1.setX(startTime + (p1.getX().doubleValue() * 1000 * 60));
 
                XYDataPoint p2 = new XYDataPoint(series2DataList.get(i).getX(),
                        series2DataList.get(i).getY(), series2DataList.get(i).getPointLabel());
                p2.setX(startTime + (p2.getX().doubleValue() * 1000 * 60));
 
                XYDataPoint p3 = new XYDataPoint(series3DataList.get(i).getX(),
                        series3DataList.get(i).getY(), series3DataList.get(i).getPointLabel());
                p3.setX(startTime + (p3.getX().doubleValue() * 1000 * 60));
 
                currentSeries1DataList.addDataPoint(p1);
                currentSeries2DataList.addDataPoint(p2);
                currentSeries3DataList.addDataPoint(p3);
            } else {
                currentSeries1DataList.addDataPoint(series1DataList.get(i));
                currentSeries2DataList.addDataPoint(series2DataList.get(i));
                currentSeries3DataList.addDataPoint(series3DataList.get(i));
            }
        }
        currentSeries1DataList.setLabel(series1DataList.getLabel());
        currentSeries1DataList.setFillLines(series1DataList.isFillLines());
        currentSeries1DataList.setMarkerPosition(series1DataList.getMarkerPosition());
        currentSeries1DataList.setMarkers(series1DataList.isMarkers());
        currentSeries1DataList.setShowDataPoints(series1DataList.isShowDataPoints());
        currentSeries1DataList.setShowLines(series1DataList.isShowLines());
 
        currentSeries2DataList.setLabel(series2DataList.getLabel());
        currentSeries2DataList.setFillLines(series2DataList.isFillLines());
        currentSeries2DataList.setMarkerPosition(series2DataList.getMarkerPosition());
        currentSeries2DataList.setMarkers(series2DataList.isMarkers());
        currentSeries2DataList.setShowDataPoints(series2DataList.isShowDataPoints());
        currentSeries2DataList.setShowLines(series2DataList.isShowLines());
 
        currentSeries3DataList.setLabel(series3DataList.getLabel());
        currentSeries3DataList.setFillLines(series3DataList.isFillLines());
        currentSeries3DataList.setMarkerPosition(series3DataList.getMarkerPosition());
        currentSeries3DataList.setMarkers(series3DataList.isMarkers());
        currentSeries3DataList.setShowDataPoints(series3DataList.isShowDataPoints());
        currentSeries3DataList.setShowLines(series3DataList.isShowLines());
 
        collection.addDataList(currentSeries1DataList);
        collection.addDataList(currentSeries2DataList);
        collection.addDataList(currentSeries3DataList);
        return collection;
    }
 
    public FlotChartRendererData getChartData() {
        return chartData;
    }
 
    public void setChartData(FlotChartRendererData chartData) {
        this.chartData = chartData;
    }
 
    public XYDataList getSeries1DataList() {
        return series1DataList;
    }
 
    public void setSeries1DataList(XYDataList series1DataList) {
        this.series1DataList = series1DataList;
    }
 
    public XYDataList getSeries2DataList() {
        return series2DataList;
    }
 
    public void setSeries2DataList(XYDataList series2DataList) {
        this.series2DataList = series2DataList;
    }
 
    public XYDataList getSeries3DataList() {
        return series3DataList;
    }
 
    public void setSeries3DataList(XYDataList series3DataList) {
        this.series3DataList = series3DataList;
    }
 
    public void generateChartMethod(OutputStream out, Object data) throws IOException {
        JFreeChart chart = ChartFactory.createPieChart3D("Products", getPartsDataset(), false, false, false);
        BufferedImage buffImg = chart.createBufferedImage(600, 400, BufferedImage.TYPE_INT_RGB, null);
        ImageIO.write(buffImg, "png", out);
    }
 
    private PieDataset getPartsDataset() {
        DefaultPieDataset dataset = new DefaultPieDataset();
        double totalCost = 0.0;
        List<product> products = pf.findAll();
        for (Product p : products) {
            totalCost += p.getPurchaseCost().doubleValue();
        }
        for (Product p : products) {
            dataset.setValue(p.getDescription(), (p.getPurchaseCost().doubleValue() / totalCost));
        }
        return dataset;
    }
 
    public StreamedContent getStreamedContent() {
        return streamedContent;
    }
}

Java Evangelist John Yeary

Pages

Thursday, April 11, 2013

JSF 2.x Tip of the Day: RichFaces 4.3.x Charts in JSF using JSFlot, JFreeCharts, and PrimeFaces

Introduction

Requirements

Code

ChartBean.java

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