Class: OAIDCMapper

Inherits:
Object
  • Object
show all
Defined in:
backend/app/lib/oai/mappers/oai_dc.rb

Instance Method Summary collapse

Instance Method Details

#map_oai_record(record) ⇒ Object 



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# File 'backend/app/lib/oai/mappers/oai_dc.rb', line 5

def map_oai_record(record)
  jsonmodel = record.jsonmodel_record
  result = Nokogiri::XML::Builder.new do |xml|
    xml['oai_dc'].dc('xmlns:oai_dc' => 'http://www.openarchives.org/OAI/2.0/oai_dc/',
                     'xmlns:dc' => 'http://purl.org/dc/elements/1.1/',
                     'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance',
                     'xsi:schemaLocation' => 'http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd') do
      # Repo name -> publisher
      xml['dc'].publisher (jsonmodel['repository']['_resolved']['name'])

      # Parent institution name -> publisher
      if jsonmodel['repository']['_resolved']['parent_institution_name']
        xml['dc'].publisher(jsonmodel['repository']['_resolved']['parent_institution_name'])
      end

      # Identifier (own component ID + IDs of parents)
      # TODO: Reuse after implementing 'off' switch for ARK
      merged_identifier = if jsonmodel['jsonmodel_type'] == 'archival_object'
                            ([jsonmodel['component_id']] + jsonmodel['ancestors'].map {|a| a['_resolved']['component_id']}).compact.reverse.uniq.join(".")
                          else
                            (0..3).map {|id| jsonmodel["id_#{id}"]}.compact.join('.')
                          end

      unless merged_identifier.empty?
        xml['dc'].identifier(merged_identifier)
      end

      if AppConfig[:arks_enabled] && jsonmodel['ark_name']
        ark_url = jsonmodel['ark_name']['current']

        xml['dc'].identifier(ark_url) if ark_url
      end

      # And a second identifier containing the public url - if public is running
      if AppConfig[:enable_public]
        xml['dc'].identifier(AppConfig[:public_proxy_url] + jsonmodel['uri'])
      end

      # Creator -- agents linked with role 'creator' that don't have a relator of 'contributor' or 'publisher'
      Array(jsonmodel['linked_agents']).each do |link|
        next unless link['_resolved']['publish']

        if link['role'] == 'creator' && !['ctb' , 'pbl'].include?(link['relator'])
          xml['dc'].creator(link['_resolved']['title'])
        end
      end

      # Contributor -- agents linked with role 'creator' and relator of 'contributor'
      Array(jsonmodel['linked_agents']).each do |link|
        next unless link['_resolved']['publish']

        if link['role'] == 'creator' && ['ctb'].include?(link['relator'])
          xml['dc'].contributor(link['_resolved']['title'])
        end
      end

      # Publisher -- agents linked with role 'creator' and relator of 'publisher'
      Array(jsonmodel['linked_agents']).each do |link|
        next unless link['_resolved']['publish']

        if link['role'] == 'creator' && ['pbl'].include?(link['relator'])
          xml['dc'].publisher(link['_resolved']['title'])
        end
      end

      # Title -- display string
      xml['dc'].title(OAIUtils.display_string(jsonmodel))

      # Dates
      Array(jsonmodel['dates']).each do |date|
        if date['expression']
          xml['dc'].date(date['expression'])
        else
          date_str = [date['begin'], date['end']].compact.join(" -- ")
          xml['dc'].date(date_str)
        end
      end

      # Extents
      Array(jsonmodel['extents']).each do |extent|
        extent_str = [extent['number'] + ' ' + I18n.t('enumerations.extent_extent_type.' + extent['extent_type'], :default => extent['extent_type']), extent['container_summary']].compact.join('; ')
        xml['dc'].format(extent_str)
      end

      # Physical description and Dimensions notes are also extents
      Array(jsonmodel['notes'])
        .select {|note| ['physdesc', 'dimensions'].include?(note['type'])}
        .each do |note|
        OAIUtils.extract_published_note_content(note).each do |content|
          xml['dc'].format(content)
        end
      end

      # Languages
      if (lang_materials = Array(jsonmodel['lang_materials']))
        language_vals = lang_materials.map {|l| l['language_and_script']}.compact
        if !language_vals.empty?
          language_vals.each do |l|
            xml['dc'].language(l['language'])
            if l.include?('script')
              xml['dc'].language(l['script'])
            end
          end
        end
        language_notes = lang_materials.map {|l| l['notes']}.compact.reject {|e| e == [] }.flatten
        if !language_notes.empty?
          language_notes.each do |note|
            OAIUtils.extract_published_note_content(note).each do |content|
              xml['dc'].language(content)
            end
          end
        end
      end

      # Description note types
      Array(jsonmodel['notes'])
        .select {|note| ['langmaterial', 'bioghist', 'scopecontent', 'abstract', 'odd', 'arrangement'].include?(note['type'])}
        .each do |note|
        OAIUtils.extract_published_note_content(note).each do |content|
          xml['dc'].description(content)
        end
      end

      # Relation note types
      Array(jsonmodel['notes'])
        .select {|note| ['originalsloc', 'altformavail', 'separatedmaterial', 'relatedmaterial'].include?(note['type'])}
        .each do |note|
        OAIUtils.extract_published_note_content(note).each do |content|
          xml['dc'].relation(content)
        end
      end

      # Rights note types
      Array(jsonmodel['notes'])
        .select {|note| ['accessrestrict', 'userestrict'].include?(note['type'])}
        .each do |note|
        OAIUtils.extract_published_note_content(note).each do |content|
          xml['dc'].rights(content)
        end
      end

      # Subjects
      Array(jsonmodel['subjects']).each do |subject|
        term_types = subject['_resolved']['terms'].map {|term| term['term_type']}

        if term_types.include?('geographic')
          xml['dc'].coverage(subject['_resolved']['title'])
        elsif term_types.include?('genre_form')
          xml['dc'].type(subject['_resolved']['title'])
        else
          xml['dc'].subject(subject['_resolved']['title'])
        end
      end

      # Subjects continued - Agents as subjects
      Array(jsonmodel['linked_agents']).each do |link|
        next unless link['_resolved']['publish']

        if link['role'] == 'subject'
          xml['dc'].subject(link['_resolved']['title'])
        end
      end


      # Physical facet note
      Array(jsonmodel['notes'])
        .select {|note| ['physfacet'].include?(note['type'])}
        .each do |note|
        OAIUtils.extract_published_note_content(note).each do |content|
          xml['dc'].type(content)
        end
      end

      # Originating Collection
      if jsonmodel['jsonmodel_type'] == 'archival_object'
        resource_id_str = (0..3).map {|i| jsonmodel['resource']['_resolved']["id_#{i}"]}.compact.join(".")
        resource_str = [jsonmodel['resource']['_resolved']['title'], resource_id_str].join(', ')

        xml['dc'].relation(resource_str)
      end
    end
  end

  result.to_xml(:save_with => Nokogiri::XML::Node::SaveOptions::NO_DECLARATION)
end