public class IdlePointCron extends HttpServlet {
/** */
private static final long serialVersionUID = 1L;
private static final Logger log = Logger.getLogger(IdlePointCron.class.getName());
@Override
@SuppressWarnings(Const.WARNING_UNCHECKED)
public void doGet(final HttpServletRequest req, final HttpServletResponse resp)
throws IOException {
// PrintWriter out;
// out = resp.getWriter();
try {
processGet();
} catch (NimbitsException e) {
LogHelper.logException(IdlePointCron.class, e);
}
}
protected static int processGet() throws NimbitsException {
final List<Entity> points = EntityServiceFactory.getInstance().getIdleEntities();
log.info("Processing " + points.size() + " potentially idle points");
for (final Entity p : points) {
try {
checkIdle((Point) p);
} catch (NimbitsException e) {
LogHelper.logException(IdlePointCron.class, e);
}
}
return points.size();
}
protected static boolean checkIdle(final Point p) throws NimbitsException {
final Calendar c = Calendar.getInstance();
c.add(Calendar.SECOND, p.getIdleSeconds() * -1);
boolean retVal = false;
final List<Entity> result =
EntityServiceFactory.getInstance()
.getEntityByKey(
UserServiceFactory.getServerInstance().getAdmin(), p.getOwner(), EntityType.user);
if (!result.isEmpty()) {
final User u = (User) result.get(0);
final List<Value> v = ValueServiceFactory.getInstance().getCurrentValue(p);
if (p.getIdleSeconds() > 0
&& !v.isEmpty()
&& v.get(0).getTimestamp().getTime() <= c.getTimeInMillis()
&& !p.getIdleAlarmSent()) {
p.setIdleAlarmSent(true);
EntityServiceFactory.getInstance().addUpdateEntity(u, p);
// PointServiceFactory.getInstance().updatePoint(u, p);
final Value va = ValueFactory.createValueModel(v.get(0), AlertType.IdleAlert);
SubscriptionServiceFactory.getInstance().processSubscriptions(u, p, va);
retVal = true;
}
}
return retVal;
}
}
/** Created by bsautner User: benjamin Date: 2/18/12 Time: 12:21 PM */
public class CalculationServiceImpl extends RemoteServiceServlet implements CalculationService {
final Logger log = Logger.getLogger(CalculationServiceImpl.class.getName());
@Override
public void processCalculations(final User u, final Entity point, final Value value)
throws NimbitsException {
final List<Entity> calculations =
EntityServiceFactory.getInstance().getEntityByTrigger(u, point, EntityType.calculation);
for (final Entity entity : calculations) {
Calculation c = (Calculation) entity;
try {
final List<Entity> target =
EntityServiceFactory.getInstance().getEntityByKey(u, c.getTarget(), EntityType.point);
if (target.isEmpty()) {
log.severe("Point target was null " + c.getTarget());
log.severe(c.getFormula());
log.severe("trigger: " + c.getTrigger());
disableCalc(u, c);
} else {
log.info("Solving calc" + c.getFormula());
final Value result = solveEquation(u, c);
log.info("result" + result);
ValueServiceFactory.getInstance().recordValue(u, target.get(0), result);
}
} catch (NimbitsException e1) {
LogHelper.logException(this.getClass(), e1);
disableCalc(u, c);
}
}
}
private static void disableCalc(User u, Trigger c) throws NimbitsException {
c.setEnabled(false);
EntityServiceFactory.getInstance().addUpdateEntity(u, c);
}
@Override
public Value solveEquation(final User user, final Calculation calculation)
throws NimbitsException {
final MathEvaluator m = new MathEvaluatorImpl(calculation.getFormula());
log.info(calculation.getFormula());
if (!Utils.isEmptyString(calculation.getX()) && calculation.getFormula().contains("x")) {
// Point p = PointServiceFactory.getInstance().getPointByKey(calculation.getX());
final Entity p =
EntityServiceFactory.getInstance()
.getEntityByKey(user, calculation.getX(), EntityType.point)
.get(0);
if (p != null) {
log.info("calc has an x car and i found " + p.getName());
final List<Value> val = ValueServiceFactory.getInstance().getCurrentValue(p);
final double d = val.isEmpty() ? 0.0 : val.get(0).getDoubleValue();
m.addVariable("x", d);
} else {
log.severe("calc has an x car and x not found");
}
}
if (!Utils.isEmptyString(calculation.getY()) && calculation.getFormula().contains("y")) {
final Entity p =
EntityServiceFactory.getInstance()
.getEntityByKey(user, calculation.getY(), EntityType.point)
.get(0);
// Point p = PointServiceFactory.getInstance().getPointByKey(calculation.getY());
if (p != null) {
final List<Value> val = ValueServiceFactory.getInstance().getCurrentValue(p);
final double d = val.isEmpty() ? 0.0 : val.get(0).getDoubleValue();
m.addVariable("y", d);
}
}
if (!Utils.isEmptyString(calculation.getZ()) && calculation.getFormula().contains("z")) {
final Entity p =
EntityServiceFactory.getInstance()
.getEntityByKey(user, calculation.getZ(), EntityType.point)
.get(0);
// Point p = PointServiceFactory.getInstance().getPointByKey(calculation.getZ());
if (p != null) {
final List<Value> val = ValueServiceFactory.getInstance().getCurrentValue(p);
final double d = val.isEmpty() ? 0.0 : val.get(0).getDoubleValue();
m.addVariable("z", d);
}
}
final Double retVal = m.getValue();
if (retVal == null) {
throw new NimbitsException("Formula returned a null value: " + calculation.getFormula());
}
return ValueFactory.createValueModel(retVal, "CV");
}
}