code: public List<String> getNamespaces()
     {
        List<String> namespaceList = new ArrayList<String>();
        java.util.Map<String, String> attributes = model.getAttributes();
        for (Entry<String, String> e : attributes.entrySet())
        {
           final String name = e.getKey();
           final String value = e.getValue();
           if (value != null && value.startsWith("http://")) 
           {
              namespaceList.add(name + "=" + value);
           }
        }
        return namespaceList;
     }
docs: Returns all defined namespaces.
  @return all defined namespaces