/**
* Create a dial image.
*
* <ul>
* <li>Load the specified XML document describing the dial definition
* <li>Create a dial definition object from the XML definition
* <li>Use the JFreeChartEngine to create a dial image
* <li>Create an XML document describing the dial
* <li>Return the XML document
* </ul>
*
* @return The XML document describing this dial
*/
@Override
public Document getXmlContent() {
WidgetDefinition widget = null;
if (type == DashboardWidgetComponent.TYPE_DIAL) {
// load the XML document that defines the dial
IActionSequenceResource resource =
new ActionSequenceResource(
title,
IActionSequenceResource.SOLUTION_FILE_RESOURCE,
"text/xml", //$NON-NLS-1$
definitionPath);
Document dialDefinition = null;
try {
org.dom4j.io.SAXReader reader = new org.dom4j.io.SAXReader();
reader.setEntityResolver(new SolutionURIResolver());
dialDefinition =
reader.read(
resource.getInputStream(RepositoryFilePermission.READ, LocaleHelper.getLocale()));
} catch (Throwable t) {
// XML document can't be read. We'll just return a null document.
}
if (dialDefinition == null) {
error(
Messages.getInstance()
.getErrorString(
"Widget.ERROR_0002_INVALID_RESOURCE", definitionPath)); // $NON-NLS-1$
return null;
}
// create a dial definition from the XML definition
widget = new DialWidgetDefinition(dialDefinition, 0, width, height, getSession());
if (widget != null) {
// set the value to be displayed on the dial
widget.setValue(new Double(value));
}
}
/*
* else if( type == TYPE_THERMOMETER ) { // load the XML document that
* defines the thermometer
*
* ActionResource resource = new ActionResource( title,
* IActionResource.SOLUTION_FILE_RESOURCE, "text/xml", //$NON-NLS-1$
* PentahoSystem.getApplicationContext().getSolutionPath( definitionPath ) );
* //$NON-NLS-1$ Document thermometerDefinition = null; try {
* thermometerDefinition = PentahoSystem.getResourceAsDocument( resource ); }
* catch (IOException e) {} // create a dial definition from the XML
* definition widget = createThermometer( thermometerDefinition );
*
* if( widget != null ) { // set the value to be displayed on the dial
* widget.setValue( new Double(value) ); // Set the XSL file to be used
* to generate the HTML setXsl( "text/html", "DialWidget.xsl" );
* //$NON-NLS-1$ //$NON-NLS-2$ } else { error(
* Messages.getInstance().getString("Widget.ERROR_0001_COULD_NOT_CREATE") );
* //$NON-NLS-1$ return null; } }
*/
if (widget == null) {
error(Messages.getInstance().getString("Widget.ERROR_0001_COULD_NOT_CREATE")); // $NON-NLS-1$
return null;
}
// create an image for the dial using the JFreeChart engine
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
// create temporary file names
String solutionDir = "system/tmp/"; // $NON-NLS-1$
String fileNamePrefix = "tmp_pie_"; // $NON-NLS-1$
String extension = ".png"; // $NON-NLS-1$
String fileName = null;
String filePathWithoutExtension = null;
try {
File file =
PentahoSystem.getApplicationContext()
.createTempFile(getSession(), fileNamePrefix, extension, true);
fileName = file.getName();
filePathWithoutExtension = solutionDir + fileName.substring(0, fileName.indexOf('.'));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String dialTitle = ""; // $NON-NLS-1$
JFreeChartEngine.saveChart(
widget,
dialTitle,
units,
filePathWithoutExtension,
width,
height,
JFreeChartEngine.OUTPUT_PNG,
printWriter,
this);
// 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()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
Element root = result.addElement("widget"); // $NON-NLS-1$
root.addElement("title").setText(title); // $NON-NLS-1$
root.addElement("units").setText(units); // $NON-NLS-1$
root.addElement("width").setText(Integer.toString(width)); // $NON-NLS-1$
root.addElement("height").setText(Integer.toString(height)); // $NON-NLS-1$
Element valueNode = root.addElement("value"); // $NON-NLS-1$
valueNode.setText(Double.toString(value));
valueNode.addAttribute(
"in-image", Boolean.toString(widget.getValueFont() != null)); // $NON-NLS-1$
root.addElement("image").setText(fileName); // $NON-NLS-1$
return result;
}
protected Document createDials(
final IPentahoResultSet resultSet, final WidgetDefinition widgetDefinition) {
if (resultSet == null) {
error(
Messages.getInstance()
.getErrorString("WidgetGrid.ERROR_0001_NO_RESULTS_FROM_ACTION")); // $NON-NLS-1$
return null;
}
if (valueItem == null) {
error(
Messages.getInstance()
.getErrorString("WidgetGrid.ERROR_0002_NO_VALUE_ITEM")); // $NON-NLS-1$
}
// 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()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
Element root = result.addElement("widgets"); // $NON-NLS-1$
IPentahoMetaData metaData = resultSet.getMetaData();
// TODO support multiple column headers / row headers
// TODO support an iteration across columns for a given row
// find the column that we have been told to you
Object[][] columnHeaders = metaData.getColumnHeaders();
int nameColumnNo = -1;
int valueColumnNo = -1;
for (int idx = 0; idx < columnHeaders[0].length; idx++) {
if (columnHeaders[0][idx].toString().equalsIgnoreCase(nameItem)) {
nameColumnNo = idx;
}
if (columnHeaders[0][idx].toString().equalsIgnoreCase(valueItem)) {
valueColumnNo = idx;
}
}
if (nameColumnNo == -1) {
// we did not find the specified name column
error(
Messages.getInstance()
.getErrorString(
"WidgetGrid.ERROR_0004_NAME_COLUMN_MISSING", nameItem)); // $NON-NLS-1$
return null;
}
if (valueColumnNo == -1) {
// we did not find the specified name column
error(
Messages.getInstance()
.getErrorString(
"WidgetGrid.ERROR_0005_VALUE_COLUMN_MISSING", valueItem)); // $NON-NLS-1$
return null;
}
double value;
String name;
Object[] row = resultSet.next();
while (row != null) {
name = row[nameColumnNo].toString();
try {
value = Double.parseDouble(row[valueColumnNo].toString());
createDial(value, name, root, widgetDefinition);
} catch (Exception e) {
}
row = resultSet.next();
}
setXslProperty("urlTarget", "pentaho_popup"); // $NON-NLS-1$ //$NON-NLS-2$
setXslProperty("columns", Integer.toString(columns)); // $NON-NLS-1$
if (style != null) {
setXslProperty("style", style); // $NON-NLS-1$
}
return result;
}
@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, RepositoryFilePermission.READ);
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"); // $NON-NLS-1$
TimeSeriesCollection chartDataDefinition = (TimeSeriesCollection) 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);
RegularTimePeriod columnKey = chartDataDefinition.getSeries(row).getTimePeriod(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;
}
