public String generatePieChart(
String hitOrdNum, HttpSession session, PrintWriter pw, String courseId, int studentId) {
/* int groupId=0;
if (groupName.equals("All")){
groupId=0;
}else{
groupId = studStatisticBean.getGroupIdByName(groupName);
}*/
String filename = null;
try {
// Retrieve list of WebHits
StudentsConceptChartDataSet whDataSet =
new StudentsConceptChartDataSet(studStatisticBean, courseId, studentId);
ArrayList list = whDataSet.getDataBySection(hitOrdNum);
// Throw a custom NoDataException if there is no data
if (list.size() == 0) {
System.out.println("No data has been found");
throw new NoDataException();
}
// Create and populate a PieDataSet
DefaultPieDataset data = new DefaultPieDataset();
Iterator iter = list.listIterator();
while (iter.hasNext()) {
StudentsConceptHit wh = (StudentsConceptHit) iter.next();
data.setValue(wh.getSection(), wh.getHitDegree());
}
// Create the chart object
PiePlot plot = new PiePlot(data);
plot.setInsets(new Insets(0, 5, 5, 5));
plot.setURLGenerator(new StandardPieURLGenerator("xy_chart.jsp", "section"));
plot.setToolTipGenerator(new StandardPieItemLabelGenerator());
JFreeChart chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
chart.setBackgroundPaint(java.awt.Color.white);
// Write the chart image to the temporary directory
ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
filename = ServletUtilities.saveChartAsPNG(chart, 600, 400, info, session);
// Write the image map to the PrintWriter
ChartUtilities.writeImageMap(pw, filename, info);
pw.flush();
} catch (NoDataException e) {
System.out.println(e.toString());
filename = "public_nodata_500x300.png";
} catch (Exception e) {
System.out.println("Exception - " + e.toString());
e.printStackTrace(System.out);
filename = "public_error_500x300.png";
}
return filename;
}
/** Test the equals() method. */
@Test
public void testEquals() {
PiePlot plot1 = new PiePlot();
PiePlot plot2 = new PiePlot();
assertEquals(plot1, plot2);
assertEquals(plot2, plot1);
// pieIndex...
plot1.setPieIndex(99);
assertFalse(plot1.equals(plot2));
plot2.setPieIndex(99);
assertEquals(plot1, plot2);
// interiorGap...
plot1.setInteriorGap(0.15);
assertFalse(plot1.equals(plot2));
plot2.setInteriorGap(0.15);
assertEquals(plot1, plot2);
// circular
plot1.setCircular(!plot1.isCircular());
assertFalse(plot1.equals(plot2));
plot2.setCircular(false);
assertEquals(plot1, plot2);
// startAngle
plot1.setStartAngle(Math.PI);
assertFalse(plot1.equals(plot2));
plot2.setStartAngle(Math.PI);
assertEquals(plot1, plot2);
// direction
plot1.setDirection(Rotation.ANTICLOCKWISE);
assertFalse(plot1.equals(plot2));
plot2.setDirection(Rotation.ANTICLOCKWISE);
assertEquals(plot1, plot2);
// ignoreZeroValues
plot1.setIgnoreZeroValues(true);
plot2.setIgnoreZeroValues(false);
assertFalse(plot1.equals(plot2));
plot2.setIgnoreZeroValues(true);
assertEquals(plot1, plot2);
// ignoreNullValues
plot1.setIgnoreNullValues(true);
plot2.setIgnoreNullValues(false);
assertFalse(plot1.equals(plot2));
plot2.setIgnoreNullValues(true);
assertEquals(plot1, plot2);
// sectionPaintMap
plot1.setSectionPaint("A", new GradientPaint(1.0f, 2.0f, Color.BLUE, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setSectionPaint("A", new GradientPaint(1.0f, 2.0f, Color.BLUE, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// baseSectionPaint
plot1.setBaseSectionPaint(new GradientPaint(1.0f, 2.0f, Color.BLACK, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setBaseSectionPaint(new GradientPaint(1.0f, 2.0f, Color.BLACK, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// sectionOutlinesVisible
plot1.setSectionOutlinesVisible(false);
assertFalse(plot1.equals(plot2));
plot2.setSectionOutlinesVisible(false);
assertEquals(plot1, plot2);
// sectionOutlinePaintList
plot1.setSectionOutlinePaint(
"A", new GradientPaint(1.0f, 2.0f, Color.green, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setSectionOutlinePaint(
"A", new GradientPaint(1.0f, 2.0f, Color.green, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// baseSectionOutlinePaint
plot1.setBaseSectionOutlinePaint(
new GradientPaint(1.0f, 2.0f, Color.gray, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setBaseSectionOutlinePaint(
new GradientPaint(1.0f, 2.0f, Color.gray, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// sectionOutlineStrokeList
plot1.setSectionOutlineStroke("A", new BasicStroke(1.0f));
assertFalse(plot1.equals(plot2));
plot2.setSectionOutlineStroke("A", new BasicStroke(1.0f));
assertEquals(plot1, plot2);
// baseSectionOutlineStroke
plot1.setBaseSectionOutlineStroke(new BasicStroke(1.0f));
assertFalse(plot1.equals(plot2));
plot2.setBaseSectionOutlineStroke(new BasicStroke(1.0f));
assertEquals(plot1, plot2);
// shadowPaint
plot1.setShadowPaint(new GradientPaint(1.0f, 2.0f, Color.orange, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setShadowPaint(new GradientPaint(1.0f, 2.0f, Color.orange, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// shadowXOffset
plot1.setShadowXOffset(4.4);
assertFalse(plot1.equals(plot2));
plot2.setShadowXOffset(4.4);
assertEquals(plot1, plot2);
// shadowYOffset
plot1.setShadowYOffset(4.4);
assertFalse(plot1.equals(plot2));
plot2.setShadowYOffset(4.4);
assertEquals(plot1, plot2);
// labelFont
plot1.setLabelFont(new Font("Serif", Font.PLAIN, 18));
assertFalse(plot1.equals(plot2));
plot2.setLabelFont(new Font("Serif", Font.PLAIN, 18));
assertEquals(plot1, plot2);
// labelPaint
plot1.setLabelPaint(new GradientPaint(1.0f, 2.0f, Color.darkGray, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setLabelPaint(new GradientPaint(1.0f, 2.0f, Color.darkGray, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// labelBackgroundPaint
plot1.setLabelBackgroundPaint(
new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setLabelBackgroundPaint(
new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// labelOutlinePaint
plot1.setLabelOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.BLUE, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setLabelOutlinePaint(new GradientPaint(1.0f, 2.0f, Color.BLUE, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// labelOutlineStroke
Stroke s = new BasicStroke(1.1f);
plot1.setLabelOutlineStroke(s);
assertFalse(plot1.equals(plot2));
plot2.setLabelOutlineStroke(s);
assertEquals(plot1, plot2);
// labelShadowPaint
plot1.setLabelShadowPaint(new GradientPaint(1.0f, 2.0f, Color.yellow, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setLabelShadowPaint(new GradientPaint(1.0f, 2.0f, Color.yellow, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// explodePercentages
plot1.setExplodePercent("A", 0.33);
assertFalse(plot1.equals(plot2));
plot2.setExplodePercent("A", 0.33);
assertEquals(plot1, plot2);
// labelGenerator
plot1.setLabelGenerator(new StandardPieSectionLabelGenerator("{2}{1}{0}"));
assertFalse(plot1.equals(plot2));
plot2.setLabelGenerator(new StandardPieSectionLabelGenerator("{2}{1}{0}"));
assertEquals(plot1, plot2);
// labelFont
Font f = new Font("SansSerif", Font.PLAIN, 20);
plot1.setLabelFont(f);
assertFalse(plot1.equals(plot2));
plot2.setLabelFont(f);
assertEquals(plot1, plot2);
// labelPaint
plot1.setLabelPaint(new GradientPaint(1.0f, 2.0f, Color.magenta, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setLabelPaint(new GradientPaint(1.0f, 2.0f, Color.magenta, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// maximumLabelWidth
plot1.setMaximumLabelWidth(0.33);
assertFalse(plot1.equals(plot2));
plot2.setMaximumLabelWidth(0.33);
assertEquals(plot1, plot2);
// labelGap
plot1.setLabelGap(0.11);
assertFalse(plot1.equals(plot2));
plot2.setLabelGap(0.11);
assertEquals(plot1, plot2);
// links visible
plot1.setLabelLinksVisible(false);
assertFalse(plot1.equals(plot2));
plot2.setLabelLinksVisible(false);
assertEquals(plot1, plot2);
plot1.setLabelLinkStyle(PieLabelLinkStyle.QUAD_CURVE);
assertFalse(plot1.equals(plot2));
plot2.setLabelLinkStyle(PieLabelLinkStyle.QUAD_CURVE);
assertEquals(plot1, plot2);
// linkMargin
plot1.setLabelLinkMargin(0.11);
assertFalse(plot1.equals(plot2));
plot2.setLabelLinkMargin(0.11);
assertEquals(plot1, plot2);
// labelLinkPaint
plot1.setLabelLinkPaint(new GradientPaint(1.0f, 2.0f, Color.magenta, 3.0f, 4.0f, Color.WHITE));
assertFalse(plot1.equals(plot2));
plot2.setLabelLinkPaint(new GradientPaint(1.0f, 2.0f, Color.magenta, 3.0f, 4.0f, Color.WHITE));
assertEquals(plot1, plot2);
// labelLinkStroke
plot1.setLabelLinkStroke(new BasicStroke(1.0f));
assertFalse(plot1.equals(plot2));
plot2.setLabelLinkStroke(new BasicStroke(1.0f));
assertEquals(plot1, plot2);
// toolTipGenerator
plot1.setToolTipGenerator(new StandardPieToolTipGenerator("{2}{1}{0}"));
assertFalse(plot1.equals(plot2));
plot2.setToolTipGenerator(new StandardPieToolTipGenerator("{2}{1}{0}"));
assertEquals(plot1, plot2);
// urlGenerator
plot1.setURLGenerator(new StandardPieURLGenerator("xx"));
assertFalse(plot1.equals(plot2));
plot2.setURLGenerator(new StandardPieURLGenerator("xx"));
assertEquals(plot1, plot2);
// minimumArcAngleToDraw
plot1.setMinimumArcAngleToDraw(1.0);
assertFalse(plot1.equals(plot2));
plot2.setMinimumArcAngleToDraw(1.0);
assertEquals(plot1, plot2);
// legendItemShape
plot1.setLegendItemShape(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
assertFalse(plot1.equals(plot2));
plot2.setLegendItemShape(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
assertEquals(plot1, plot2);
// legendLabelGenerator
plot1.setLegendLabelGenerator(new StandardPieSectionLabelGenerator("{0} --> {1}"));
assertFalse(plot1.equals(plot2));
plot2.setLegendLabelGenerator(new StandardPieSectionLabelGenerator("{0} --> {1}"));
assertEquals(plot1, plot2);
// legendLabelToolTipGenerator
plot1.setLegendLabelToolTipGenerator(new StandardPieSectionLabelGenerator("{0} is {1}"));
assertFalse(plot1.equals(plot2));
plot2.setLegendLabelToolTipGenerator(new StandardPieSectionLabelGenerator("{0} is {1}"));
assertEquals(plot1, plot2);
// legendLabelURLGenerator
plot1.setLegendLabelURLGenerator(new StandardPieURLGenerator("index.html"));
assertFalse(plot1.equals(plot2));
plot2.setLegendLabelURLGenerator(new StandardPieURLGenerator("index.html"));
assertEquals(plot1, plot2);
// autoPopulateSectionPaint
plot1.setAutoPopulateSectionPaint(false);
assertFalse(plot1.equals(plot2));
plot2.setAutoPopulateSectionPaint(false);
assertEquals(plot1, plot2);
// autoPopulateSectionOutlinePaint
plot1.setAutoPopulateSectionOutlinePaint(true);
assertFalse(plot1.equals(plot2));
plot2.setAutoPopulateSectionOutlinePaint(true);
assertEquals(plot1, plot2);
// autoPopulateSectionOutlineStroke
plot1.setAutoPopulateSectionOutlineStroke(true);
assertFalse(plot1.equals(plot2));
plot2.setAutoPopulateSectionOutlineStroke(true);
assertEquals(plot1, plot2);
// shadowGenerator
plot1.setShadowGenerator(new DefaultShadowGenerator(5, Color.gray, 0.6f, 4, -Math.PI / 4));
assertFalse(plot1.equals(plot2));
plot2.setShadowGenerator(new DefaultShadowGenerator(5, Color.gray, 0.6f, 4, -Math.PI / 4));
assertEquals(plot1, plot2);
plot1.setShadowGenerator(null);
assertFalse(plot1.equals(plot2));
plot2.setShadowGenerator(null);
assertEquals(plot1, plot2);
}
