public void syncOptions()

in empire-db-jsf2/src/main/java/org/apache/empire/jsf2/controls/SelectInputControl.java [219:306]
77 lines of code
26 McCabe index (conditional complexity)

    public void syncOptions(UISelectOne input, TextResolver textResolver, InputInfo ii)
    {
        // get the options
        Options options = ii.getOptions();
        if (options==null)
        {   // clear or not?
            if (ii.getValue(false)!=null)
                log.warn("No options have been set for column {}", ii.getColumn().getName());
            else
                input.getChildren().clear();
            return;
        }
        Object currentValue = ii.getValue(true);
        boolean hasEmpty = isEmptyEntryRequired(input, options, ii, currentValue);
        // boolean isInsideUIData = ii.isInsideUIData();
        // Compare child-items with options
        Iterator<OptionEntry> ioe = options.iterator();
        OptionEntry oe = (ioe.hasNext() ? ioe.next() : null);
        List<UIComponent> childList = input.getChildren();
        Iterator<UIComponent> ico = childList.iterator();
        int lastIndex = 0;
        boolean emptyPresent = false;
        while (ico.hasNext())
        {
            lastIndex++;
            UIComponent co = ico.next();
            if (!(co instanceof UISelectItem))
                continue;
            UISelectItem si = (UISelectItem) co;
            Object ov = si.getItemValue();
            if (ObjectUtils.isEmpty(ov) && hasEmpty)
            {   emptyPresent = true;
                continue;
            }
            // skip inactive
            while (oe!=null && !oe.isActive())
            {   // check for current
                if (ObjectUtils.compareEqual(oe.getValue(), currentValue))
                    break;
                // next oe
                oe = (ioe.hasNext() ? ioe.next() : null);
            }
            if (oe == null)
            {   // remove obsolete items
                lastIndex--;
                for (int index = childList.size() - 1; index >= lastIndex; index--)
                    childList.remove(index);
                // done
                return;
            }
            if (ObjectUtils.compareEqual(ov, oe.getValue()))
            {   // next
                String label = oe.getText();
                si.setItemLabel(textResolver.resolveText(label));
                oe = (ioe.hasNext() ? ioe.next() : null);
                continue;
            }
            // Not equal - do a full reload
            input.getChildren().clear();
            if (hasEmpty) {
                // add empty entry
                addSelectItem(input, textResolver, new OptionEntry("", getNullText(ii)));
            }
            for (OptionEntry opt : options)
            {   // Option entries
                if (opt.isActive() || ObjectUtils.compareEqual(opt.getValue(), currentValue))
                {   // add active or current item
                    addSelectItem(input, textResolver, opt);
                }
            }
            // done
            return;
        }
        // check empty entry
        if (hasEmpty && !emptyPresent)
        {   // add missing empty entry
            addSelectItem(input, textResolver, new OptionEntry("", getNullText(ii)), 0);
        }
        // Are there any items left?
        while (oe != null)
        {   // add missing item
            if (oe.isActive() || ObjectUtils.compareEqual(oe.getValue(), currentValue))
            {   // add item
                addSelectItem(input, textResolver, oe);
            }
            oe = (ioe.hasNext() ? ioe.next() : null);
        }
    }