Class: Gared::Primo

Inherits:
Object
  • Object
show all
Defined in:
lib/gared/primo.rb

Instance Method Summary collapse

Constructor Details

#initialize(url, institution) ⇒ Primo

Returns a new instance of Primo.



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# File 'lib/gared/primo.rb', line 6

def initialize(url, institution)
  @options = {url: url, institution: institution}
end

Instance Method Details

#query_person(person) ⇒ Object 



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# File 'lib/gared/primo.rb', line 17

def query_person(person)
end

#query_persons(q) ⇒ Object 



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# File 'lib/gared/primo.rb', line 14

def query_persons(q)
end

#query_publication(publication) ⇒ Object 



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# File 'lib/gared/primo.rb', line 23

def query_publication(publication)
end

#query_publications(q) ⇒ Object 



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# File 'lib/gared/primo.rb', line 20

def query_publications(q)
end

#query_publications_by_person(person, ctx = nil) ⇒ Object

return in-memory Publication instances with associated Holdings



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# File 'lib/gared/primo.rb', line 27

def query_publications_by_person(person, ctx = nil)
  ret = []
  begin
    url = @options[:url]+"?institution=#{@options[:institution]}&query=creator,contains,#{uri_escape(person)}&indx=1&bulkSize=50&query=facet_rtype,exact,books&json=true"
    json = JSON.parse(RestClient.get(url))
    total = json['SEGMENTS']['JAGROOT']['RESULT']['DOCSET']['@TOTALHITS'].to_i
    start_at = 1
    recs = json['SEGMENTS']['JAGROOT']['RESULT']['DOCSET']['DOC'] # stash the records
    while recs.length < total
      start_at += 50
      url = @options[:url]+"?institution=#{@options[:institution]}&query=creator,contains,#{uri_escape(person)}&indx=#{start_at}&bulkSize=50&query=facet_rtype,exact,books&json=true"
      json = JSON.parse(RestClient.get(url))
      recs += json['SEGMENTS']['JAGROOT']['RESULT']['DOCSET']['DOC']
      sleep 1 # respect the server and avoid flood-blocking
    end
    recs.each do |r|
      begin
        deets = r['PrimoNMBib']['record']['display']
        p = Publication.new(ctx)
        p.title = deets['title']
        p.author_line = deets['creator']
        p.language = deets['language']
        p.notes = "#{deets['format']}\n#{deets['subject']}"
        p.publisher_line = deets['publisher']
        p.pub_year = deets['creationdate']
        p.source_id = r['PrimoNMBib']['record']['control']['sourcerecordid']
        # collect additional URLS from record, for clients to be able to determine whether a scanned object exists
        additional_urls = []
        deets.keys.each do |key|
          if deets[key].class == Array
            deets[key].each do |kkey|
              additional_urls << kkey if kkey.class == String && kkey =~ /https?:[^\s]/
            end
          elsif deets[key].class == String
            additional_urls << deets[key] if deets[key] =~ /https?:[^\s]/
          end
        end
        p.additional_urls = additional_urls if additional_urls.length > 0
        h = Holding.new
        h.source_id = p.source_id
        h.source_name = 'Primo:'+@options[:institution]
        
        begin
          h.location = r['LIBRARIES']['LIBRARY'][0].nil? ? r['LIBRARIES']['LIBRARY']['callNumber'] : r['LIBRARIES']['LIBRARY'][0]['callNumber'] # there seem to be two cases, different between NLI and TAU, for example; there also seems to not even be a LIBRARIES key for some electronic resources. We're skipping those.
        rescue Exception
          puts $!
        end
        p.add_holding(h)
        ret << p
      rescue Exception
        puts $!
      end
    end
  rescue Exception
    puts $!
  end
  return ret
end

#uri_escape(s) ⇒ Object 



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# File 'lib/gared/primo.rb', line 9

def uri_escape(s)
  p = URI::Parser.new
  return p.escape(s)
end