public void XtestCountAndIterator() throws Exception {
Transaction tx = session.beginTransaction();
session.save(new Simple(1, "test1"));
session.save(new Simple(2, "test2"));
tx.commit();
session.flush();
session.close();
SQLQuery<Simple> sql = new SQLQuery<Simple>(Simple.class, "id = ?");
sql.setParameter(1, 1);
DataIterator it = sqlDataProvider.iterator(sql);
assertTrue(it.hasNext());
assertEquals(1, ((Simple) it.next()).getId().intValue());
it.close();
sql.setParameter(1, 0);
it = sqlDataProvider.iterator(sql);
assertFalse(it.hasNext());
it.close();
}
@Override
protected PeriodTimerEvent processEvent(PeriodTimerEvent event) {
long end = event.getTime();
query.setParameters(end - getInterval() * 1000L, end);
MarketDataEvent[] ticks = gigaSpace.readMultiple(query, Integer.MAX_VALUE, ReadModifiers.FIFO);
if (ticks.length == 0) return null;
Map<String, VwapData> calcdata = new HashMap<String, VwapData>();
for (MarketDataEvent tick : ticks) {
VwapData data = calcdata.get(tick.getSymbol());
if (data == null) {
data = new VwapData();
data.symbol = tick.getSymbol();
calcdata.put(data.symbol, data);
}
data.totalvol = data.totalvol + tick.getTradeData().getVolume();
data.pricecum =
data.pricecum
+ (tick.getTradeData().getPrice() * (double) tick.getTradeData().getVolume());
}
// Create synthetic events
for (VwapData vd : calcdata.values()) {
MarketDataEvent newevent = new MarketDataEvent();
newevent.setEventTime(event.getTime());
newevent.setEventType(getName());
newevent.setSymbol(vd.symbol);
VwapEventData ved = new VwapEventData();
ved.setVwap(vd.pricecum / vd.totalvol);
ved.setPeriod(event.getInterval());
newevent.setSynthData(ved);
log.info("data:" + ved.toString());
gigaSpace.write(newevent);
}
return null;
}
