Class: DataFoodConsortium::Connector::SKOSParser

Inherits:
Object
  • Object
show all
Defined in:
lib/datafoodconsortium/connector/skos_parser.rb

Constant Summary collapse

CONCEPT_SCHEMES = 
["Facet", "productTypes"].freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ SKOSParser

Returns a new instance of SKOSParser.



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# File 'lib/datafoodconsortium/connector/skos_parser.rb', line 45

def initialize
  @results = DataFoodConsortium::Connector::SKOSInstance.new
  @skosConcepts = {}
  @rootElements = []
  @broaders = {}
  # Flag used to tell the parser to use SkosConcept object when parsing data from Concept Scheme
  # defined in CONCEPT_SCHEMES
  @useSkosConcept = false
end

Class Method Details

.concepts ⇒ Object 



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# File 'lib/datafoodconsortium/connector/skos_parser.rb', line 41

def self.concepts
  @concepts ||= {}
end

Instance Method Details

#parse(data) ⇒ Object 



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# File 'lib/datafoodconsortium/connector/skos_parser.rb', line 55

def parse(data)
  init

  data.each do |element|
    current = DataFoodConsortium::Connector::SKOSParserElement.new(element)

    setSkosConceptFlag(current)

    if current.isConcept? || current.isCollection?
      if !@skosConcepts.has_key?(current.id)
        concept = createSKOSConcept(current)
        @skosConcepts[current.id] = concept
      end

      if current.hasBroader
        current.broader.each do |broaderId|
          if !@broaders.has_key?(broaderId)
            @broaders[broaderId] = []
          end

          @broaders[broaderId].push(current.id)
        end
      # No broader, save the concept to the root
      else
        @rootElements.push(current.id)
      end
    end
  end

  @rootElements.each do |rootElementId|
    setResults(@results, rootElementId)
  end

  @results
end