Java Code Examples for org.jfree.data.general.DefaultPieDataset#setValue()

protected void buildDataset() {
  final DefaultPieDataset localPieDataset = (DefaultPieDataset) getDataSet();
  final Comparable seriesComparable = querySeriesValue( 0 );
  if ( seriesComparable == null ) {
    return;
  }

  final Object valueObject = getDataRow().get( getValueColumn() );
  final Number value = ( valueObject instanceof Number ) ? (Number) valueObject : null;
  final Number existingValue =
    CollectorFunctionUtil.queryExistingValueFromDataSet( localPieDataset, seriesComparable );
  if ( existingValue != null ) {
    if ( value != null ) {
      localPieDataset.setValue( seriesComparable, CollectorFunctionUtil.add( existingValue, value ) );
    }
  } else {
    localPieDataset.setValue( seriesComparable, value );
  }
}
 

/**
 * Creates a sample dataset.
 * 
 * Source: http://www.bbc.co.uk/news/business-15489523
 *
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Samsung", new Double(27.8));
    dataset.setValue("Others", new Double(55.3));
    dataset.setValue("Nokia", new Double(16.8));
    dataset.setValue("Apple", new Double(17.1));
    return dataset;
}
 

/**
 * Common test setup.
 */
@Before
public void setUp() {
    DefaultPieDataset data = new DefaultPieDataset();
    data.setValue("Java", new Double(43.2));
    data.setValue("Visual Basic", new Double(0.0));
    data.setValue("C/C++", new Double(17.5));
    this.pieChart = ChartFactory.createPieChart("Pie Chart", data);
}
 

/**
 * Some tests for the clear() method.
 */
public void testClear() {
    DefaultPieDataset d = new DefaultPieDataset();
    d.addChangeListener(this);
    // no event is generated if the dataset is already empty
    d.clear();
    assertNull(this.lastEvent);
    d.setValue("A", 1.0);
    assertEquals(1, d.getItemCount());
    this.lastEvent = null;
    d.clear();
    assertNotNull(this.lastEvent);
    assertEquals(0, d.getItemCount());
}
 

/**
 * Test that the generated URL is as expected.
 */
@Test
public void testURL() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Alpha '1'", new Double(5.0));
    dataset.setValue("Beta", new Double(5.5));
    StandardPieURLGenerator g1 = new StandardPieURLGenerator(
            "chart.jsp", "category");
    String url = g1.generateURL(dataset, "Beta", 0);
    assertEquals("chart.jsp?category=Beta&pieIndex=0", url);
    url = g1.generateURL(dataset, "Alpha '1'", 0);
    assertEquals("chart.jsp?category=Alpha+%271%27&pieIndex=0", url);
}
 

@Override
public void afterReportInit() throws JRScriptletException
{
	DefaultPieDataset dataset = new DefaultPieDataset();
	dataset.setValue("Java", 43.2d);
	dataset.setValue("Visual Basic", 10.0d);
	dataset.setValue("C/C++", 17.5d);
	dataset.setValue("PHP", 32.5d);
	dataset.setValue("Perl", 1.0d);

	JFreeChart chart = 
		ChartFactory.createPieChart3D(
			"Pie Chart 3D Demo 1",
			dataset,
			true,
			true,
			false
			);

	PiePlot3D plot = (PiePlot3D) chart.getPlot();
	plot.setStartAngle(290);
	plot.setDirection(Rotation.CLOCKWISE);
	plot.setForegroundAlpha(0.5f);
	plot.setNoDataMessage("No data to display");

	/*   */
	this.setVariableValue("Chart", new JCommonDrawableRendererImpl(chart));
}
 

public void testPieTooltip() throws Exception {
  DebugExpressionRuntime runtime = new DebugExpressionRuntime();
  FormulaPieTooltipGenerator gen = new FormulaPieTooltipGenerator( runtime, "=[chart::item]" );

  DefaultPieDataset dataSet = new DefaultPieDataset();
  dataSet.setValue( "Key-1", 5 );
  dataSet.setValue( "Key-2", 7 );
  dataSet.setValue( "Key-3", 10 );
  assertEquals( "5.0", gen.generateToolTip( dataSet, "Key-1" ) );
  assertEquals( "7.0", gen.generateToolTip( dataSet, "Key-2" ) );
  assertEquals( "10.0", gen.generateToolTip( dataSet, "Key-3" ) );
}
 

/**
 * Creates a sample dataset.
 * 
 * Source: http://www.bbc.co.uk/news/business-15489523
 *
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Samsung", new Double(27.8));
    dataset.setValue("Others", new Double(55.3));
    dataset.setValue("Nokia", new Double(16.8));
    dataset.setValue("Apple", new Double(17.1));
    return dataset;
}
 

/**
 * Tests that no exceptions are thrown when there is a <code>null</code>
 * value in the dataset.
 */
@Test
public void testNullValueInDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Section 1", 10.0);
    dataset.setValue("Section 2", 11.0);
    dataset.setValue("Section 3", null);
    JFreeChart chart = createPieChart3D(dataset);
    BufferedImage image = new BufferedImage(200 , 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
    g2.dispose();
    //FIXME we should really assert a value here
}
 

/**
 * Creates a sample dataset for the demo.
 *
 * @return A sample dataset.
 */
private PieDataset createSampleDataset()
{
  final DefaultPieDataset result = new DefaultPieDataset();
  // cheating: java has a higher chance to be the best language :)
  result.setValue("Java", new Integer((int) (Math.random() * 200)));
  result.setValue("Visual Basic", new Integer((int) (Math.random() * 50)));
  result.setValue("C/C++", new Integer((int) (Math.random() * 100)));
  result.setValue("PHP", new Integer((int) (Math.random() * 50)));
  result.setValue("Perl", new Integer((int) (Math.random() * 100)));
  return result;

}
 

/**
 * Creates a sample dataset.
 * 
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("One", new Double(43.2));
    dataset.setValue("Two", new Double(10.0));
    dataset.setValue("Three", new Double(27.5));
    dataset.setValue("Four", new Double(17.5));
    dataset.setValue("Five", new Double(11.0));
    dataset.setValue("Six", new Double(19.4));
    return dataset;        
}
 

/**
 * Common test setup.
 */
@Before
public void setUp() {
    // create a dataset...
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Java", new Double(43.2));
    dataset.setValue("Visual Basic", new Double(0.0));
    dataset.setValue("C/C++", new Double(17.5));
    this.pieChart = createPieChart3D(dataset);
}
 

/**
 * Creates a sample dataset for the demo.
 *
 * @return A sample dataset.
 */
private PieDataset createSampleDataset()
{
  final DefaultPieDataset result = new DefaultPieDataset();
  // cheating: java has a higher chance to be the best language :)
  result.setValue("Java", new Integer((int) (Math.random() * 200)));
  result.setValue("Visual Basic", new Integer((int) (Math.random() * 50)));
  result.setValue("C/C++", new Integer((int) (Math.random() * 100)));
  result.setValue("PHP", new Integer((int) (Math.random() * 50)));
  result.setValue("Perl", new Integer((int) (Math.random() * 100)));
  return result;

}
 

/**
 * Creates a sample dataset.
 * 
 * Source: http://www.bbc.co.uk/news/business-15489523
 *
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Samsung", new Double(27.8));
    dataset.setValue("Others", new Double(55.3));
    dataset.setValue("Nokia", new Double(16.8));
    dataset.setValue("Apple", new Double(17.1));
    return dataset;
}
 

/**
 * Creates a sample dataset.
 * 
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("One", new Double(43.2));
    dataset.setValue("Two", new Double(10.0));
    dataset.setValue("Three", new Double(27.5));
    dataset.setValue("Four", new Double(17.5));
    dataset.setValue("Five", new Double(11.0));
    dataset.setValue("Six", new Double(19.4));
    return dataset;        
}
 

/**
 * For datasets, the equals() method just checks keys and values.
 */
@Test
public void testEquals() {
    DefaultCategoryDataset underlying = new DefaultCategoryDataset();
    underlying.addValue(1.1, "R1", "C1");
    underlying.addValue(2.2, "R1", "C2");
    CategoryToPieDataset d1 = new CategoryToPieDataset(underlying,
            TableOrder.BY_COLUMN, 1);
    DefaultPieDataset d2 = new DefaultPieDataset();
    d2.setValue("R1", 2.2);
    assertTrue(d1.equals(d2));
}
 

/**
 * Creates a sample dataset.
 * 
 * Source: http://www.bbc.co.uk/news/business-15489523
 *
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Samsung", new Double(27.8));
    dataset.setValue("Others", new Double(55.3));
    dataset.setValue("Nokia", new Double(16.8));
    dataset.setValue("Apple", new Double(17.1));
    return dataset;
}
 

/**
 * Creates a sample dataset.
 * 
 * Source: http://www.bbc.co.uk/news/business-15489523
 *
 * @return A sample dataset.
 */
private static PieDataset createDataset() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Samsung", new Double(27.8));
    dataset.setValue("Others", new Double(55.3));
    dataset.setValue("Nokia", new Double(16.8));
    dataset.setValue("Apple", new Double(17.1));
    return dataset;
}
 

/**
 * Serialize a pie chart, restore it, and check for equality.
 */
@Test
public void testSerialization1() {
    DefaultPieDataset data = new DefaultPieDataset();
    data.setValue("Type 1", 54.5);
    data.setValue("Type 2", 23.9);
    data.setValue("Type 3", 45.8);

    JFreeChart c1 = ChartFactory.createPieChart("Test", data);
    JFreeChart c2 = (JFreeChart) TestUtilities.serialised(c1);
    assertEquals(c1, c2);
    LegendTitle lt2 = c2.getLegend();
    assertSame(lt2.getSources()[0], c2.getPlot());
}
 

/**
 * For datasets, the equals() method just checks keys and values.
 */
@Test
public void testEquals() {
    DefaultCategoryDataset underlying = new DefaultCategoryDataset();
    underlying.addValue(1.1, "R1", "C1");
    underlying.addValue(2.2, "R1", "C2");
    CategoryToPieDataset d1 = new CategoryToPieDataset(underlying,
            TableOrder.BY_COLUMN, 1);
    DefaultPieDataset d2 = new DefaultPieDataset();
    d2.setValue("R1", 2.2);
    assertTrue(d1.equals(d2));
}