public List<DashboardFilterProperty> getVisibleProperties() {
   List<DashboardFilterProperty> results = new ArrayList<DashboardFilterProperty>();
   Iterator it = properties.iterator();
   while (it.hasNext()) {
     DashboardFilterProperty dashboardFilterProperty = (DashboardFilterProperty) it.next();
     if (dashboardFilterProperty.isVisible()) results.add(dashboardFilterProperty);
   }
   return results;
 }
  public String serializeComponentData() throws Exception {
    // Serialize visible properties and options.
    StringWriter sw = new StringWriter();
    PrintWriter out = new PrintWriter(sw);
    int indent = 0;
    printIndent(out, indent);
    out.println("<dashboard_filter>");
    Iterator it = properties.iterator();
    while (it.hasNext()) {
      DashboardFilterProperty dashboardFilterProperty = (DashboardFilterProperty) it.next();
      printIndent(out, indent + 1);
      out.println(
          "<property id=\""
              + StringEscapeUtils.escapeXml(dashboardFilterProperty.getPropertyId())
              + "\" providerCode =\""
              + StringEscapeUtils.escapeXml(dashboardFilterProperty.getDataProviderCode())
              + "\">");
      printIndent(out, indent + 2);
      out.println("<visible>" + dashboardFilterProperty.isVisible() + "</visible>");
      if (dashboardFilterProperty.getSectionId() != null) {
        printIndent(out, indent + 2);
        out.println("<section>" + dashboardFilterProperty.getSectionId() + "</section>");
      }
      printIndent(out, indent + 1);
      out.println("</property>");
    }

    // Serialize options.
    printIndent(out, indent + 1);
    out.println("<options>");
    printIndent(out, indent + 2);
    out.println("<shortViewMode>" + isShortMode + "</shortViewMode>");
    printIndent(out, indent + 2);
    out.println("<showLegend>" + showLegend + "</showLegend>");
    printIndent(out, indent + 2);
    out.println("<showRefreshButton>" + showRefreshButton + "</showRefreshButton>");
    printIndent(out, indent + 2);
    out.println("<showApplyhButton>" + showApplyButton + "</showApplyhButton>");
    printIndent(out, indent + 2);
    out.println("<showClearButton>" + showClearButton + "</showClearButton>");
    printIndent(out, indent + 2);
    out.println("<showPropertyNames>" + showPropertyNames + "</showPropertyNames>");
    printIndent(out, indent + 2);
    out.println("<showSubmitOnChange>" + showSubmitOnChange + "</showSubmitOnChange>");
    printIndent(out, indent + 1);
    out.println("<showAutoRefresh>" + showAutoRefresh + "</showAutoRefresh>");
    printIndent(out, indent + 1);
    out.println("</options>");
    printIndent(out, indent);

    out.println("</dashboard_filter>");
    serializedProperties = sw.toString();
    return sw.toString();
  }
  public CommandResponse actionFilter(CommandRequest request) {
    try {
      // Init attributes for start applying the filter.
      filterPropertyErrors.clear();

      // Parse parameters and set the filter.
      Iterator visiblePropertiesIt = properties.iterator();
      while (visiblePropertiesIt.hasNext()) {
        DashboardFilterProperty dashboardFilterProperty =
            (DashboardFilterProperty) visiblePropertiesIt.next();

        // Is property already in the dashboard filter?. Then is not possible to filter by this
        // property, it's already added to dashboard filter.
        if (dashboardFilterProperty.isBeingFiltered()) continue;
        if (!dashboardFilterProperty.isPropertyAlive()) {
          log.warn(
              "Trying to filter by "
                  + dashboardFilterProperty.getPropertyId()
                  + ". This property is not in any dataset.");
          continue;
        }
        if (!dashboardFilterProperty.isVisible()) continue;

        Object[] result;
        try {
          result =
              requestProcessor.parseDashboardProperty(
                  request.getRequestObject(), dashboardFilterProperty);
        } catch (Exception e) {
          log.error("Error parsing property " + dashboardFilterProperty.getPropertyId() + ".", e);
          continue;
        }

        if (result.length != 3) {
          log.error(
              "Error parsing property: '"
                  + dashboardFilterProperty.getPropertyId()
                  + "' for dataProvider: '"
                  + dashboardFilterProperty.getDataProviderCode()
                  + "'");
          continue;
        }

        Collection allowedValues = (Collection) result[0];
        Object minValue = result[1];
        Object maxValue = result[2];
        if (allowedValues == null && minValue == null && maxValue == null) continue;

        // Set the filter with this property.
        Dashboard currentDashboard = DashboardHandler.lookup().getCurrentDashboard();
        if (currentDashboard.filter(
            dashboardFilterProperty.getPropertyId(),
            minValue,
            true,
            maxValue,
            true,
            allowedValues,
            FilterByCriteria.ALLOW_ANY)) {
          return new ShowCurrentScreenResponse();
        }
      }
    } catch (Exception e) {
      log.error("Error trying to filter properties for dashboard", e);
    }
    return null;
  }