Class: Iqvoc::SkosImporter

Inherits:
Object
  • Object
show all
Defined in:
lib/iqvoc/skos_importer.rb

Constant Summary collapse

FIRST_LEVEL_OBJECT_CLASSES = 
[Iqvoc::Concept.base_class, Iqvoc::Collection.base_class]
SECOND_LEVEL_OBJECT_CLASSES = 
Iqvoc::Concept.labeling_classes.keys +
Iqvoc::Concept.note_classes +
Iqvoc::Concept.relation_classes +
Iqvoc::Concept.match_classes +
Iqvoc::Collection.member_classes

Instance Method Summary collapse

Constructor Details

#initialize(file, default_namespace_url, logger = Rails.logger) ⇒ SkosImporter

Returns a new instance of SkosImporter.



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# File 'lib/iqvoc/skos_importer.rb', line 11

def initialize(file, default_namespace_url, logger = Rails.logger)

  @logger = logger

  unless file.is_a?(File) || file.is_a?(Array)
    raise "Iqvoc::SkosImporter#import: Parameter 'file' should be a File or an Array."
  end

  # Some general Namespaces to support in any case
  @prefixes = {
    "http://www.w3.org/2004/02/skos/core#" => "skos:",
    "http://www.w3.org/2008/05/skos#" => "skos:",
    "http://www.w3.org/1999/02/22-rdf-syntax-ns#" => "rdf:",
    default_namespace_url => ":"
  }
  # Add the namespaces specified in the Iqvoc config
  Iqvoc.rdf_namespaces.each do |pref, uri|
    @prefixes[uri] = "#{pref.to_s}:"
  end

  @seen_first_level_objects = {}
  @blank_nodes = {}

  @existing_origins = {} # To prevent the creation of first level objects we already have
  FIRST_LEVEL_OBJECT_CLASSES.each do |klass|
    klass.select("origin").all.each do |thing|
      @existing_origins[thing.origin] = klass
    end
  end

  import(file)
end