record.rb in exlibris-aleph-2.0.0

- old
+ new
@@ -1,58 +1,29 @@
 module Exlibris
   module Aleph
-    require 'marc'
-    # ==Overview
-    # Provides access to the Aleph Record REST API.
-    class Record < Rest::Base
-      attr_accessor :bib_library, :record_id
+    class Record
 
-      def initialize(*args)
-        super
-      end
+      attr_reader :id
 
-      # Returns a MARC::Record that contains the bib data
-      # Every method call refreshes the data from the underlying API.
-      # Raises an exception if the response is not valid XML or there are errors.
-      def bib
-        self.response = self.class.get("#{record_url}?view=full")
-        raise_error_if("Error getting bib from Aleph REST APIs.") {
-          (response.parsed_response["get_record"].nil? or response.parsed_response["get_record"]["record"].nil?)
-        }
-        MARC::XMLReader.new(StringIO.new(xml(xml: response.body).at_xpath("get-record/record").to_xml(xml_options).strip)).first
+      def initialize(id)
+        @id = id
       end
 
-      # Returns an array of items. Each item is represented as a Hash.
-      # Every method call refreshes the data from the underlying API.
-      # Raises an exception if the response is not valid XML or there are errors.
-      def items
-        # Since we're parsing xml, this will raise an error
-        # if the response isn't xml.
-        self.response = self.class.get("#{record_url}/items?view=full")
-        raise_error_if("Error getting items from Aleph REST APIs.") {
-          (response.parsed_response["get_item_list"].nil? or response.parsed_response["get_item_list"]["items"].nil?)
-        }
-        [response.parsed_response["get_item_list"]["items"]["item"]].flatten
+      def metadata
+        @metadata ||= Metadata.new(client.to_xml) unless client.error?
       end
 
-      # Returns an array of holdings. Each holding is represented as a MARC::Record.
-      # Every method call refreshes the data from the underlying API.
-      # Raises an exception if there are errors.
       def holdings
-        self.response = self.class.get("#{record_url}/holdings?view=full")
-        raise_error_if("Error getting holdings from Aleph REST APIs.") {
-          (response.parsed_response["get_hol_list"].nil? or response.parsed_response["get_hol_list"]["holdings"].nil?)
-        }
-        xml(xml: response.body).xpath("get-hol-list/holdings/holding").collect{ |holding|
-          # Change the tag name to record so that the MARC::XMLReader can parse it.
-          holding.name = "record"
-          MARC::XMLReader.new(StringIO.new(holding.to_xml(xml_options).strip)).first
-        }
+        @holdings ||= Holdings.new(id).to_a
       end
 
-      def record_url
-        @record_url ||= "#{rest_url}/record/#{bib_library}#{record_id}"
+      def items
+        @items ||= Items.new(id).to_a
       end
-      private :record_url
+
+      private
+      def client
+        @client ||= API::Client::Record.new(id, {view: 'full'})
+      end
     end
   end
 end
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