public void displayReport(Filter filter, Map<String, Object> parameters) {
// TODO make the report generation asynchronous and display the first page when it is ready
// and not after last
// page is ready
currentParameters = parameters;
// Load template
ReportDefinition rd = (ReportDefinition) getReportSelection().getValue();
String path = getFullPath(rd);
jasperReport = reportGenerator.loadTemplate(path);
// Set parameters
Map<String, Object> params = JRUtils.createParametersFromFilter(jasperReport, filter);
params.putAll(currentParameters);
currentParameters.putAll(params);
// Set datasource
jrDataSource = null;
if (!rd.requiresDatabaseConnection()) {
if (container instanceof Indexed) {
jrDataSource = new JRIndexedContainerDataSource((Indexed) container);
} else {
jrDataSource = new JRContainerDataSource(container);
}
}
// Generate report
reportGenerator.setShowMargins(showMargins.getValue());
String html =
reportGenerator.executeReportAsHtml(
jasperReport,
params,
jrDataSource,
((WrappedHttpSession) VaadinSession.getCurrent().getSession()).getHttpSession(),
VaadinSession.getCurrent().getLocale());
if (html == null || "".equals(html) || (container != null && container.size() <= 0)) {
reportArea.setValue(getMessageService().getMessage(NO_DATA_FOUND_KEY));
exportPDF.setEnabled(false);
} else {
if (rd.requiresExternalScript()) {
VaadinUtils.loadScript(REPORT_AREA_ID, html, rd.requiresExternalScript(), alreadyLoaded);
// only load external script for the map
alreadyLoaded = true;
} else {
reportArea.setValue(html);
}
exportPDF.setEnabled(true);
}
}
public void setContainer(Container container, boolean defineProperties) {
this.container = container;
if (defineProperties) {
// Prepare the container by adding all properties needed for the reports
for (ReportDefinition type :
(ReportDefinition[]) reportDefinition.getClass().getEnumConstants()) {
if (!type.requiresDatabaseConnection()) {
JRUtils.addContainerPropertiesFromReport(
container, reportGenerator.loadTemplate(getFullPath(type)));
}
}
}
}