@Override
public Dataset createChart(final Document doc) {
if (actionPath != null) { // if we have a solution then get the values
values = getActionData();
} else {
// TODO support other methods of getting data
}
if (values == null) {
// we could not get any data
return null;
}
// get the chart node from the document
Node chartAttributes =
doc.selectSingleNode("//" + AbstractChartComponent.CHART_NODE_NAME); // $NON-NLS-1$
// create the definition
XYZSeriesCollectionChartDefinition chartDefinition =
new XYZSeriesCollectionChartDefinition(
(IPentahoResultSet) values, byRow, chartAttributes, getSession());
// set the misc values from chartDefinition
setChartType(chartDefinition.getChartType());
setTitle(chartDefinition.getTitle());
// get the URL template
Node urlTemplateNode =
chartAttributes.selectSingleNode(AbstractChartComponent.URLTEMPLATE_NODE_NAME);
if (urlTemplateNode != null) {
setUrlTemplate(urlTemplateNode.getText());
}
// get the additional parameter
Node paramName2Node = chartAttributes.selectSingleNode(AbstractChartComponent.PARAM2_NODE_NAME);
if (paramName2Node != null) {
seriesName = paramName2Node.getText();
}
if ((chartDefinition.getWidth() != -1) && (width == -1)) {
setWidth(chartDefinition.getWidth());
}
if ((chartDefinition.getHeight() != -1) && (height == -1)) {
setHeight(chartDefinition.getHeight());
}
return chartDefinition;
}
@Override
public Document getXmlContent() {
// Create a document that describes the result
Document result = DocumentHelper.createDocument();
IPentahoRequestContext requestContext = PentahoRequestContextHolder.getRequestContext();
setXslProperty(
"baseUrl", requestContext.getContextPath()); // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
setXslProperty(
"fullyQualifiedServerUrl",
PentahoSystem.getApplicationContext()
.getFullyQualifiedServerURL()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
String mapName = "chart" + AbstractChartComponent.chartCount++; // $NON-NLS-1$
Document chartDefinition = jcrHelper.getSolutionDocument(definitionPath, 1);
if (chartDefinition == null) {
Element errorElement = result.addElement("error"); // $NON-NLS-1$
errorElement
.addElement("title")
.setText(
Messages.getInstance()
.getString(
"ABSTRACTCHARTEXPRESSION.ERROR_0001_ERROR_GENERATING_CHART")); //$NON-NLS-1$
// //$NON-NLS-2$
String message =
Messages.getInstance()
.getString(
"CHARTS.ERROR_0001_CHART_DEFINIION_MISSING", definitionPath); // $NON-NLS-1$
errorElement.addElement("message").setText(message); // $NON-NLS-1$
error(message);
return result;
}
// create a pie definition from the XML definition
dataDefinition = createChart(chartDefinition);
if (dataDefinition == null) {
Element errorElement = result.addElement("error"); // $NON-NLS-1$
errorElement
.addElement("title")
.setText(
Messages.getInstance()
.getString(
"ABSTRACTCHARTEXPRESSION.ERROR_0001_ERROR_GENERATING_CHART")); //$NON-NLS-1$
// //$NON-NLS-2$
String message =
Messages.getInstance()
.getString(
"CHARTS.ERROR_0002_CHART_DATA_MISSING",
actionPath); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
errorElement.addElement("message").setText(message); // $NON-NLS-1$
// System .out.println( result.asXML() );
return result;
}
// create an image for the dial using the JFreeChart engine
PrintWriter printWriter = new PrintWriter(new StringWriter());
// we'll dispay the title in HTML so that the dial image does not have
// to
// accommodate it
String chartTitle = ""; // $NON-NLS-1$
try {
if (width == -1) {
width =
Integer.parseInt(
chartDefinition.selectSingleNode("/chart/width").getText()); // $NON-NLS-1$
}
if (height == -1) {
height =
Integer.parseInt(
chartDefinition.selectSingleNode("/chart/height").getText()); // $NON-NLS-1$
}
} catch (Exception e) {
// go with the default
}
if (chartDefinition.selectSingleNode("/chart/" + AbstractChartComponent.URLTEMPLATE_NODE_NAME)
!= null) { //$NON-NLS-1$
urlTemplate =
chartDefinition
.selectSingleNode("/chart/" + AbstractChartComponent.URLTEMPLATE_NODE_NAME)
.getText(); //$NON-NLS-1$
}
if (chartDefinition.selectSingleNode("/chart/paramName") != null) { // $NON-NLS-1$
paramName = chartDefinition.selectSingleNode("/chart/paramName").getText(); // $NON-NLS-1$
}
Element root = result.addElement("charts"); // $NON-NLS-1$
XYZSeriesCollectionChartDefinition chartDataDefinition =
(XYZSeriesCollectionChartDefinition) dataDefinition;
if (chartDataDefinition.getSeriesCount() > 0) {
// create temporary file names
String[] tempFileInfo = createTempFile();
String fileName = tempFileInfo[AbstractChartComponent.FILENAME_INDEX];
String filePathWithoutExtension =
tempFileInfo[AbstractChartComponent.FILENAME_WITHOUT_EXTENSION_INDEX];
ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
JFreeChartEngine.saveChart(
chartDataDefinition,
chartTitle,
"",
filePathWithoutExtension,
width,
height,
JFreeChartEngine.OUTPUT_PNG,
printWriter,
info,
this); //$NON-NLS-1$
applyOuterURLTemplateParam();
populateInfo(info);
Element chartElement = root.addElement("chart"); // $NON-NLS-1$
chartElement.addElement("mapName").setText(mapName); // $NON-NLS-1$
chartElement.addElement("width").setText(Integer.toString(width)); // $NON-NLS-1$
chartElement.addElement("height").setText(Integer.toString(height)); // $NON-NLS-1$
for (int row = 0; row < chartDataDefinition.getSeriesCount(); row++) {
for (int column = 0; column < chartDataDefinition.getItemCount(row); column++) {
Number value = chartDataDefinition.getY(row, column);
Comparable rowKey = chartDataDefinition.getSeriesKey(row);
Number columnKey = chartDataDefinition.getX(row, column);
Element valueElement = chartElement.addElement("value2D"); // $NON-NLS-1$
valueElement.addElement("value").setText(value.toString()); // $NON-NLS-1$
valueElement.addElement("row-key").setText(rowKey.toString()); // $NON-NLS-1$
valueElement.addElement("column-key").setText(columnKey.toString()); // $NON-NLS-1$
}
}
String mapString = ImageMapUtilities.getImageMap(mapName, info);
chartElement.addElement("imageMap").setText(mapString); // $NON-NLS-1$
chartElement.addElement("image").setText(fileName); // $NON-NLS-1$
}
return result;
}
