Module: Solrizer::Fedora::Extractor

Defined in:
lib/solrizer/fedora/extractor.rb

Overview

Solrizer::Fedora::Extractor provides Fedora-specific extractor behaviors This module is automatically mixed into Solrizer::Extractor when you load the solrizer-fedora gem into an application. This is carried out in solrizer/fedora.rb

Instance Method Summary collapse

Instance Method Details

#extract_rels_ext(text, solr_doc = Hash.new) ⇒ Object

Extracts content-model and hydra-type from RELS-EXT datastream



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/solrizer/fedora/extractor.rb', line 12

def extract_rels_ext( text, solr_doc=Hash.new )
  # TODO: only read in this file once
  
  if defined?(Rails.root.to_s)
    config_path = File.join(Rails.root.to_s, "config","hydra_types.yml")
    config_path = nil unless File.exist?(config_path)
  end
  unless config_path
    config_path = File.join(File.dirname(__FILE__), "..", "..", "..", "config","hydra_types.yml")
  end
  
  
  map = YAML.load(File.open(config_path))
  
  doc = Nokogiri::XML(text)
  doc.xpath( '//foo:hasModel', 'foo' => 'info:fedora/fedora-system:def/model#' ).each do |element|
    cmodel = element.attributes['resource'].to_s
    ::Solrizer::Extractor.insert_solr_field_value(solr_doc,  :cmodel_t, cmodel )
    
    if map.has_key?(cmodel)
      ::Solrizer::Extractor.insert_solr_field_value(solr_doc, :hydra_type_t, map[cmodel] )
    end
  end

  return solr_doc
end