@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);
      }
    }
  }