/** Method process chart tags, it collects chart options and data. */
@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
super.encodeBegin(context, component);
AbstractChart chart = (AbstractChart) component;
VisitChart visitCallback = new VisitChart(chart);
// copy attributes to parent tag and process data
chart.visitTree(
VisitContext.createVisitContext(FacesContext.getCurrentInstance()), visitCallback);
// store data to parent tag
component.getAttributes().put("chartData", visitCallback.getData());
if (!visitCallback.isDataEmpty()) {
component.getAttributes().put("charttype", visitCallback.getChartType());
component.getAttributes().put("xtype", axisDataTypeToString(visitCallback.getKeyType()));
component.getAttributes().put("ytype", axisDataTypeToString(visitCallback.getValType()));
}
// set flag whether request to server should be sent
boolean anyServerSideListener = chart.getPlotClickListener() != null ? true : false;
if (!anyServerSideListener) {
// check if there is particular series listener
List<MethodExpression> listeners = visitCallback.getParticularSeriesListeners();
for (MethodExpression methodExpression : listeners) {
if (methodExpression != null) {
anyServerSideListener = true;
break;
}
}
}
component.getAttributes().put("serverSideListener", anyServerSideListener);
// client-side handlers for particular series
component.getAttributes().put("handlers", visitCallback.getSeriesSpecificHandlers());
// server-side listeners for particular series
component
.getAttributes()
.put("particularSeriesListeners", visitCallback.getParticularSeriesListeners());
}
