Class: RDFAPI

Inherits:
Object
  • Object
show all
Defined in:
app/aides/rdfapi.rb

Overview

Copyright 2011-2013 innoQ Deutschland GmbH

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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::Concept.notation_classes +
Iqvoc::Concept.additional_association_classes.keys +
[Iqvoc::Collection.member_class]
OBJECT_DICTIONARY = 
FIRST_LEVEL_OBJECT_CLASSES.inject({}) do |hash, klass|
  hash["#{klass.rdf_namespace}:#{klass.rdf_class}"] = klass
  hash
end
PREDICATE_DICTIONARY = 
SECOND_LEVEL_OBJECT_CLASSES.inject({}) do |hash, klass|
  hash["#{klass.rdf_namespace}:#{klass.rdf_predicate}"] = klass
  hash
end
URI_REGEXP = 
/^https?:\/\/[^\s]+$/
URI_LITERAL_REGEXP = 
/^<(https?:\/\/[^\s]+)>$/
LITERAL_REGEXP = 
/^"(.+)"(@(.+))?$/
BLANK_NODE_REGEXP = 
/^_:(.+)/

Class Method Summary collapse

Class Method Details

.devour(rdf_subject, rdf_predicate, rdf_object) ⇒ Object 



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# File 'app/aides/rdfapi.rb', line 42

def self.devour(rdf_subject, rdf_predicate, rdf_object)
  case rdf_predicate
  when 'a', 'rdf:type'
    case rdf_object
    when String
      target = OBJECT_DICTIONARY[rdf_object] || rdf_object.constantize
    else
      target = rdf_object
    end
    target.find_or_initialize_by(origin: rdf_subject)
  when String
    # dictionary lookup
    target = PREDICATE_DICTIONARY[rdf_predicate] || rdf_predicate.constantize
    target.build_from_rdf(rdf_subject, target, rdf_object)
  else # is a class
    rdf_predicate.build_from_rdf(rdf_subject, rdf_predicate, rdf_object)
  end
end