示例#1
0
  private String valueToHtml(final Entity entity, final Entity point, final Value value) {
    final StringBuilder sb = new StringBuilder(SIZE);
    if (!(Double.compare(value.getDoubleValue(), Const.CONST_IGNORED_NUMBER_VALUE) == 0)) {
      sb.append("<img style=\"float:left\" src=\"")
          .append(ServerInfoImpl.getFullServerURL(this.getThreadLocalRequest()));

      switch (value.getAlertState()) {
        case LowAlert:
          sb.append("/resources/images/point_low.png\">");
          break;
        case HighAlert:
          sb.append("/resources/images/point_high.png\">");
          break;
        case IdleAlert:
          sb.append("/resources/images/point_idle.png\">");
          break;
        case OK:
          sb.append("/resources/images/point_ok.png\">");
          break;
      }
    }

    if (entity != null && point != null) {

      sb.append("&nbsp;");

      if (!(Double.compare(value.getDoubleValue(), Const.CONST_IGNORED_NUMBER_VALUE) == 0)) {
        sb.append("Alert&nbsp;Status:").append(value.getAlertState().name());
        sb.append("<br>Value:").append(value.getDoubleValue());
      }

      if (!Utils.isEmptyString(value.getNote())) {
        sb.append("<br>Note:").append(value.getNote());
      }

      sb.append("<a href=\"#\" onclick=\"window.open('report.html?uuid=")
          .append(point.getKey())
          .append("', 'Report',")
          .append("'height=800,width=800,toolbar=0,status=0,location=0' );\" >")
          .append("&nbsp;[more]</a>");
    }

    return sb.toString();
  }
  @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");
  }