/**
* Creates the event type for this view
*
* @param statementContext is the event adapter service
* @return event type for view
*/
public static EventType createEventType(
StatementContext statementContext, StatViewAdditionalProps additionalProps) {
Map<String, Object> schemaMap = new HashMap<String, Object>();
schemaMap.put(ViewFieldEnum.SIZE_VIEW__SIZE.getName(), long.class);
StatViewAdditionalProps.addCheckDupProperties(
schemaMap, additionalProps, ViewFieldEnum.SIZE_VIEW__SIZE);
return statementContext.getEventAdapterService().createAnonymousMapType(schemaMap);
}
public final void update(EventBean[] newData, EventBean[] oldData) {
long priorSize = size;
// add data points to the window
if (newData != null) {
size += newData.length;
if ((additionalProps != null) && (newData.length != 0)) {
if (lastValuesEventNew == null) {
lastValuesEventNew = new Object[additionalProps.getAdditionalExpr().length];
}
for (int val = 0; val < additionalProps.getAdditionalExpr().length; val++) {
lastValuesEventNew[val] =
additionalProps.getAdditionalExpr()[val].evaluate(
new EventBean[] {newData[newData.length - 1]}, true, statementContext);
}
}
}
if (oldData != null) {
size -= oldData.length;
}
// If there are child views, fireStatementStopped update method
if ((this.hasViews()) && (priorSize != size)) {
Map<String, Object> postNewData = new HashMap<String, Object>();
postNewData.put(ViewFieldEnum.SIZE_VIEW__SIZE.getName(), size);
addProperties(postNewData);
EventBean newEvent =
statementContext.getEventAdapterService().adaptorForTypedMap(postNewData, eventType);
if (lastSizeEvent != null) {
updateChildren(new EventBean[] {newEvent}, new EventBean[] {lastSizeEvent});
} else {
Map<String, Object> postOldData = new HashMap<String, Object>();
postOldData.put(ViewFieldEnum.SIZE_VIEW__SIZE.getName(), priorSize);
EventBean oldEvent =
statementContext.getEventAdapterService().adaptorForTypedMap(postOldData, eventType);
updateChildren(new EventBean[] {newEvent}, new EventBean[] {oldEvent});
}
lastSizeEvent = newEvent;
}
}
public void attach(
EventType parentEventType,
StatementContext statementContext,
ViewFactory optionalParentFactory,
List<ViewFactory> parentViewFactories)
throws ViewParameterException {
ExprNode[] validated =
ViewFactorySupport.validate(
getViewName(), parentEventType, statementContext, viewParameters, true);
additionalProps = StatViewAdditionalProps.make(validated, 0, parentEventType);
eventType = SizeView.createEventType(statementContext, additionalProps, streamNumber);
}
private void addProperties(Map<String, Object> newDataMap) {
if (additionalProps == null) {
return;
}
additionalProps.addProperties(newDataMap, lastValuesEventNew);
}