public void encodeBeginInternal()

in tobago-core/src/main/java/org/apache/myfaces/tobago/internal/renderkit/renderer/SheetRenderer.java [230:295]
58 lines of code
11 McCabe index (conditional complexity)

  public void encodeBeginInternal(final FacesContext facesContext, final T component) throws IOException {

    final String sheetId = component.getClientId(facesContext);
    final Markup markup = component.getMarkup();
    final TobagoResponseWriter writer = getResponseWriter(facesContext);
    final AbstractUIReload reload = ComponentUtils.getReloadFacet(component);

    UIComponent header = component.getHeader();
    if (header == null) {
      header = ComponentUtils.createComponent(facesContext, Tags.panel.componentType(), null, "_header");
      header.setTransient(true);
      final List<AbstractUIColumnBase> columns = component.getAllColumns();
      int i = 0;
      for (final AbstractUIColumnBase column : columns) {
        if (!(column instanceof AbstractUIRow)) {
          final AbstractUIOut out = (AbstractUIOut) ComponentUtils.createComponent(
              facesContext, Tags.out.componentType(), RendererTypes.Out, "_col" + i);
//        out.setValue(column.getLabel());
          out.setTransient(true);
          ValueExpression valueExpression = column.getValueExpression(Attributes.label.getName());
          if (valueExpression != null) {
            out.setValueExpression(Attributes.value.getName(), valueExpression);
          } else {
            out.setValue(ComponentUtils.getAttribute(column, Attributes.label));
          }
          valueExpression = column.getValueExpression(Attributes.rendered.getName());
          if (valueExpression != null) {
            out.setValueExpression(Attributes.rendered.getName(), valueExpression);
          } else {
            out.setRendered(ComponentUtils.getBooleanAttribute(column, Attributes.rendered));
          }
          out.setLabelLayout(LabelLayout.skip);
          header.getChildren().add(out);
        }
        i++;
      }
      component.setHeader(header);
    }
    component.init(facesContext);

    // Outer sheet div
    insideBegin(facesContext, HtmlElements.TOBAGO_SHEET);
    writer.startElement(HtmlElements.TOBAGO_SHEET);
    writer.writeIdAttribute(sheetId);
    HtmlRendererUtils.writeDataAttributes(facesContext, writer, component);
    writer.writeClassAttribute(
        component.getCustomClass(),
        markup != null && markup.contains(Markup.SPREAD) ? TobagoClass.SPREAD : null);
    writer.writeAttribute(DataAttributes.SELECTION_MODE, component.getSelectable().name(), false);
    writer.writeAttribute(DataAttributes.FIRST, Integer.toString(component.getFirst()), false);
    writer.writeAttribute(CustomAttributes.ROWS, component.getRows());
    writer.writeAttribute(CustomAttributes.ROW_COUNT, Integer.toString(component.getRowCount()), false);
    writer.writeAttribute(CustomAttributes.LAZY, component.isLazy());
    writer.writeAttribute(CustomAttributes.LAZY_UPDATE, component.isLazy() && AjaxUtils.isAjaxRequest(facesContext));

    final boolean autoLayout = component.isAutoLayout();
    if (!autoLayout) {
      writer.writeAttribute(DataAttributes.LAYOUT, JsonUtils.encode(component.getColumnLayout(), "columns"), true);
    }

    encodeBehavior(writer, facesContext, component);

    if (reload != null) {
      reload.encodeAll(facesContext);
    }
  }