Class: GeoCombine::GeoBlacklightHarvester::ModernBlacklightResponse

Inherits:
Object
  • Object
show all
Defined in:
lib/geo_combine/geo_blacklight_harvester.rb

Overview

Class to return documents from the Blacklight API (v7 and above)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(response:, base_url:, logger: GeoCombine::Logger.logger) ⇒ ModernBlacklightResponse

Returns a new instance of ModernBlacklightResponse.



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# File 'lib/geo_combine/geo_blacklight_harvester.rb', line 145

def initialize(response:, base_url:, logger: GeoCombine::Logger.logger)
  @base_url = base_url
  @response = response
  @page = 1
  @logger = logger
end

Instance Attribute Details

#base_url ⇒ Object (readonly)

Returns the value of attribute base_url.



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# File 'lib/geo_combine/geo_blacklight_harvester.rb', line 142

def base_url
  @base_url
end

#page ⇒ Object

Returns the value of attribute page.



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# File 'lib/geo_combine/geo_blacklight_harvester.rb', line 143

def page
  @page
end

#response ⇒ Object

Returns the value of attribute response.



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# File 'lib/geo_combine/geo_blacklight_harvester.rb', line 143

def response
  @response
end

Instance Method Details

#documents ⇒ Object 



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# File 'lib/geo_combine/geo_blacklight_harvester.rb', line 152

def documents
  return enum_for(:documents) unless block_given?

  while response && response['data'].any?
    document_urls = response['data'].collect { |data| data.dig('links', 'self') }.compact

    yield documents_from_urls(document_urls)

    url = response.dig('links', 'next')
    break unless url

    url = "#{url}&format=json"
    self.page += 1
    @logger.debug "fetching page #{page} @ #{url}"
    begin
      self.response = JSON.parse(Net::HTTP.get(URI(url)))
    rescue StandardError => e
      @logger.error "Request for #{url} failed with #{e}"
      self.response = nil
    end
  end
end