public static String getSimplePieChart(Map dataSource, String objectName, HttpSession session)
throws Throwable {
DefaultPieDataset dataset = new DefaultPieDataset();
Element chartObject =
XMLHandler.getElementByAttribute(getChartObjectList(), "name", objectName);
String title = chartObject.getAttributeValue("title");
int width = Integer.parseInt(chartObject.getAttributeValue("width"));
int height = Integer.parseInt(chartObject.getAttributeValue("height"));
Element LabelKeys = chartObject.getChild("Labels");
Element ValueKeys = chartObject.getChild("Values");
String valueKey = ValueKeys.getText();
String valueType = ValueKeys.getAttributeValue("type");
List labelKeys = LabelKeys.getChildren("Label");
String labelKey = LabelKeys.getText();
if (valueType.equalsIgnoreCase("number")) {
for (int i = 0; i < dataSource.size(); i++) {
Map rec = (Map) dataSource.get("ROW" + i);
Number value = (Number) rec.get(valueKey);
String label;
if (labelKeys.isEmpty()) {
label = DataFilter.show(rec, labelKey);
} else {
label = ((Element) labelKeys.get(i)).getText();
}
dataset.setValue(label, value);
}
} else {
for (int i = 0; i < dataSource.size(); i++) {
Map rec = (Map) dataSource.get("ROW" + i);
double value = (Double) rec.get(valueKey);
String label;
if (labelKeys.isEmpty()) {
label = DataFilter.show(rec, labelKey);
} else {
label = ((Element) labelKeys.get(i)).getText();
}
dataset.setValue(label, value);
}
}
JFreeChart chart =
ChartFactory.createPieChart3D(
title,
dataset,
chartObject.getAttribute("showLegend").getBooleanValue(),
chartObject.getAttribute("showToolTips").getBooleanValue(),
chartObject.getAttribute("urls").getBooleanValue());
PiePlot3D pie3dplot = (PiePlot3D) chart.getPlot();
float alpha = 0.7F;
if (chartObject.getAttribute("alpha") != null) {
alpha = chartObject.getAttribute("alpha").getFloatValue();
}
pie3dplot.setForegroundAlpha(alpha);
return ServletUtilities.saveChartAsPNG(chart, width, height, null, session);
}
public static String getSimpleBarChart(Map dataSource, String objectName, HttpSession session)
throws Throwable {
Element chartObject =
XMLHandler.getElementByAttribute(getChartObjectList(), "name", objectName);
List invokeFields = chartObject.getChild("InvokeFields").getChildren("Field");
double[][] data = new double[invokeFields.size()][dataSource.size()];
String[] rowKeys = new String[invokeFields.size()];
String[] columnKeys = new String[dataSource.size()];
String columnLabel = chartObject.getChildText("ColumnLabel");
for (int i = 0; i < dataSource.size(); i++) {
Map rec = (Map) dataSource.get("ROW" + i);
columnKeys[i] = DataFilter.show(rec, columnLabel);
for (int j = 0; j < invokeFields.size(); j++) {
data[j][i] =
Double.parseDouble(
rec.get(((Element) invokeFields.get(j)).getAttributeValue("name")).toString());
}
}
for (int i = 0; i < invokeFields.size(); i++) {
rowKeys[i] = ((Element) invokeFields.get(i)).getAttributeValue("label");
}
CategoryDataset dataset = DatasetUtilities.createCategoryDataset(rowKeys, columnKeys, data);
PlotOrientation plotOrientation =
chartObject.getAttributeValue("plotOrientation").equalsIgnoreCase("VERTICAL")
? PlotOrientation.VERTICAL
: PlotOrientation.HORIZONTAL;
JFreeChart chart =
ChartFactory.createBarChart3D(
chartObject.getAttributeValue("title"),
chartObject.getAttributeValue("categoryAxisLabel"),
chartObject.getAttributeValue("valueAxisLabel"),
dataset,
plotOrientation,
chartObject.getAttribute("showLegend").getBooleanValue(),
chartObject.getAttribute("showToolTips").getBooleanValue(),
chartObject.getAttribute("urls").getBooleanValue());
CategoryPlot C3dplot = (CategoryPlot) chart.getPlot();
if (chartObject.getAttribute("alpha") != null) {
C3dplot.setForegroundAlpha(chartObject.getAttribute("alpha").getFloatValue());
}
BarRenderer3D barrenderer = (BarRenderer3D) C3dplot.getRenderer();
barrenderer.setLabelGenerator(new StandardCategoryLabelGenerator());
barrenderer.setItemLabelsVisible(true);
barrenderer.setPositiveItemLabelPosition(
new ItemLabelPosition(ItemLabelAnchor.OUTSIDE1, TextAnchor.BASELINE_CENTER));
int width, height;
if (chartObject.getAttributeValue("width").equalsIgnoreCase("auto")) {
width = (50 * dataSource.size()) * invokeFields.size() + 100;
} else {
width = Integer.parseInt(chartObject.getAttributeValue("width"));
}
if (chartObject.getAttributeValue("height").equalsIgnoreCase("auto")) {
height = (50 * dataSource.size()) * invokeFields.size() + 100;
} else {
height = Integer.parseInt(chartObject.getAttributeValue("height"));
}
return ServletUtilities.saveChartAsPNG(chart, width, height, session);
}