protected int renderGroupOrItemRadio()

in impl/src/main/java/org/apache/myfaces/renderkit/html/base/HtmlRadioRendererBase.java [257:417]
123 lines of code
37 McCabe index (conditional complexity)

    protected int renderGroupOrItemRadio(FacesContext facesContext,
                                         UIComponent uiComponent, SelectItem selectItem,
                                         Object currentValue,
                                         Converter converter, Boolean usingTable, String group,
                                         Integer itemNum) throws IOException
    {

        ResponseWriter writer = facesContext.getResponseWriter();

        boolean isSelectItemGroup = (selectItem instanceof SelectItemGroup);

        // TODO : Check here for getSubmittedValue. Look at RendererUtils.getValue
        // this is useless object creation
        // Object itemValue = selectItem.getValue();

        UISelectOne selectOne = (UISelectOne)uiComponent;

        if (isSelectItemGroup) 
        {
            if (usingTable == Boolean.TRUE)
            {
                writer.startElement(HTML.TR_ELEM, null); // selectOne);
            }

            writer.startElement(usingTable != null ? HTML.TD_ELEM : HTML.LI_ELEM, null); // selectOne);
            if (selectItem.isEscape())
            {
                writer.writeText(selectItem.getLabel(),HTML.LABEL_ATTR);
            }
            else
            {
                writer.write(selectItem.getLabel());
            }

            if (usingTable != null)
            {
                writer.endElement(HTML.TD_ELEM);
            }

            if (usingTable == Boolean.TRUE)
            {
                writer.endElement(HTML.TR_ELEM);
                writer.startElement(HTML.TR_ELEM, null); // selectOne);
            }

            if (usingTable != null)
            {
                writer.startElement(HTML.TD_ELEM, null);
            }

            writer.startElement(usingTable != null ? HTML.TABLE_ELEM : HTML.UL_ELEM, null); // selectOne);

            if (usingTable != null)
            {
                int border = 0;
                Object borderObj = uiComponent.getAttributes().get("border");
                if (null != borderObj)
                {
                    border = (Integer) borderObj;
                }
                if (Integer.MIN_VALUE != border)
                {
                    writer.writeAttribute(HTML.BORDER_ATTR, border, "border");
                }
            }

            if(usingTable == Boolean.FALSE)
            {
                writer.startElement(HTML.TR_ELEM, null); // selectOne);
            }

            SelectItemGroup selectItemGroup = (SelectItemGroup) selectItem;
            SelectItem[] selectItems = selectItemGroup.getSelectItems();

            for (SelectItem groupSelectItem : selectItems)
            { 
                itemNum = renderGroupOrItemRadio(facesContext, selectOne, groupSelectItem, currentValue, 
                                                 converter, usingTable, itemNum);
            }

            if(usingTable == Boolean.FALSE)
            {
                writer.endElement(HTML.TR_ELEM);
            }
            writer.endElement(usingTable != null ? HTML.TABLE_ELEM : HTML.UL_ELEM);
            writer.endElement(usingTable != null ? HTML.TD_ELEM : HTML.LI_ELEM);

            if (usingTable == Boolean.TRUE)
            {
                writer.endElement(HTML.TR_ELEM);
            }

        } 
        else 
        {
            String itemStrValue =  org.apache.myfaces.core.api.shared.SharedRendererUtils.getConvertedStringValue(
                    facesContext, selectOne, converter, selectItem.getValue());
            boolean itemChecked = (itemStrValue == null) ? 
                    itemStrValue == currentValue : 
                    "".equals(itemStrValue) ? 
                            (currentValue == null || itemStrValue.equals(currentValue)) : 
                            itemStrValue.equals(currentValue);
            
            // IF the hideNoSelectionOption attribute of the component is true
            // AND this selectItem is the "no selection option"
            // AND there are currently selected items
            // AND this item (the "no selection option") is not selected
            if (HtmlRendererUtils.isHideNoSelectionOption(uiComponent) && selectItem.isNoSelectionOption() 
                    && currentValue != null && !"".equals(currentValue) && !itemChecked)
            {
                // do not render this selectItem
                return itemNum;
            }
            
            //writer.write("\t\t");
            boolean renderGroupId = false;
            if (group != null && !group.isEmpty())
            {
                //no op
                renderGroupId = true;
            }
            else
            {
                if (usingTable == Boolean.TRUE)
                {
                    writer.startElement(HTML.TR_ELEM, null); // selectOne);
                }
                writer.startElement(usingTable != null ? HTML.TD_ELEM : HTML.LI_ELEM, null); // selectOne);
            }
    
            boolean itemDisabled = selectItem.isDisabled();
    
            String itemId = renderRadio(facesContext, selectOne, itemStrValue, itemDisabled, 
                    itemChecked, renderGroupId, renderGroupId ? null : itemNum);
    
            // label element after the input
            boolean componentDisabled = isDisabled(facesContext, selectOne);
            boolean disabled = (componentDisabled || itemDisabled);
    
            HtmlRendererUtils.renderLabel(writer, selectOne,
                    renderGroupId ? selectOne.getClientId(facesContext) : itemId,
                    selectItem, disabled);

            if (group != null && group.length() > 0)
            {
                //no op
            }
            else
            {
                writer.endElement(usingTable != null ? HTML.TD_ELEM : HTML.LI_ELEM);
                if (usingTable == Boolean.TRUE)
                {
                    writer.endElement(HTML.TR_ELEM);
                }
            }
            
            // we rendered one radio --> increment itemNum
            itemNum++;
        }
        return itemNum;
    }