Sort metadata extension return list

Question

I have developed a custom metadata extension which I will use for several metadata properties.
As a basis for the metadata extension I used the example (for Dynamic values) provided here:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/unkown/implementing a metadata extension for kmc properties.article
I have extended the example so that it serves for multiple metadata properties and multiple languages.
Now I would like to sort the IMetaValueList returned by
getAllowedValues(IMetaName metaName, IMetaContext metaContext)
I want to sort this list of keys by the labels of the locale in which a user is logged on, so that for instance a dropdownlistbox shows the items in alphabetical order.
I think I can accomplish this by using
metaContext.getResourceContext().getLocale()
to get the locale, and using
sort(Comparator c)
in IMetaValueList with a custom Comparator.
The custom Comparator would compare two keys, based on their corresponding labels (
getValueLabel(IMetaValue metaValue, Locale locale)
However, before I start implementing this, I need to know:
-In custom iViews, currently I use
IMetaValueListIterator allowedValues =metaName.allowedValueIterator();
where metaName is an IMetaName which uses the metadata extension.
For the sort function to work I need to use
allowedValueIterator(IMetaContext metaContext);
How do I get an IMetaContext in my custom portal component?
-Is there another way to sort the IMetaValueList returned by the metadata extension?
Johan

Answer 1

Anyone? Any help will be appreciated...
Johan