Module: RTM::Sugar::Topic::BestName

Defined in:
lib/rtm/sugar/topic/best_name.rb

Overview

Copyright: Copyright 2009 Topic Maps Lab, University of Leipzig. License: Apache License, Version 2.0

Instance Method Summary collapse

Instance Method Details

#best_name(theme = nil) ⇒ Object

Tries to find the best matching name for a given topic.



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# File 'lib/rtm/sugar/topic/best_name.rb', line 8

def best_name (theme = nil)
  all_names = self.names

  # return last part of identifier if no name exist
  return find_user_friendly_identifier(self) if all_names.empty

  # collect name with default name type
  default_names = []
  all_names.each do |name|
    type_of_name = name.getType

    next if type_of_name.nil?
    type_identifiers = type_of_name.subject_identifiers.to_a

    type_identifiers.each do |i|
      if i.toExternalForm == RTM::PSI[:name_type] then
        default_names << name
        break
      end
    end
  end

  default_names = all_names if default_names.empty?
  default_names = default_names.select { |name| not name.scope.to_a.index(theme).nil? } if not theme.nil?
  default_names = all_names if default_names.empty?

  # get default name with the minimum number of scopes
  min_scoped_name = default_names.sort_by{|n| n.value}.min {|n1,n2| n1.getScope.size <=> n2.getScope.size}
  min_scoped_name.value
end