Class: Qa::Authorities::Oclcts

Inherits:
Base
  • Object
show all
Defined in:
lib/qa/authorities/oclcts.rb

Constant Summary collapse

SRU_SERVER_CONFIG = 
YAML.load_file(Rails.root.join("config", "oclcts-authorities.yml"))

Instance Attribute Summary collapse

Attributes inherited from Base

#query_url, #raw_response, #response

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(q, sub_authority = '') ⇒ Oclcts

Returns a new instance of Oclcts.



11
12
13
14
15
 
# File 'lib/qa/authorities/oclcts.rb', line 11

def initialize(q, sub_authority='')
  self.sub_authority = sub_authority
  self.query_url = SRU_SERVER_CONFIG["url-pattern"]["prefix-query"].gsub(/\{query\}/, q).gsub(/\{authority\-id\}/, sub_authority)
  self.raw_response = Nokogiri::XML(open(self.query_url))
end

Instance Attribute Details

#sub_authority ⇒ Object

Returns the value of attribute sub_authority.



9
10
11
 
# File 'lib/qa/authorities/oclcts.rb', line 9

def sub_authority
  @sub_authority
end

Class Method Details

.authority_valid?(sub_authority) ⇒ Boolean

Returns:

  • (Boolean) 


17
18
19
 
# File 'lib/qa/authorities/oclcts.rb', line 17

def self.authority_valid?(sub_authority)
  sub_authorities.include?(sub_authority)
end

.sub_authorities ⇒ Object 



21
22
23
24
25
26
27
 
# File 'lib/qa/authorities/oclcts.rb', line 21

def self.sub_authorities
  a = []
  SRU_SERVER_CONFIG["authorities"].each do | sub_authority |
    a.append(sub_authority[0])
  end
  a
end

Instance Method Details

#get_full_record(id) ⇒ Object 



37
38
39
40
41
42
43
44
45
 
# File 'lib/qa/authorities/oclcts.rb', line 37

def get_full_record(id)
  unless self.raw_response.xpath("sru:searchRetrieveResponse/sru:records/sru:record/sru:recordData/Zthes/term[termId='" + id + "']", 'sru' => 'http://www.loc.gov/zing/srw/').blank?
    parse_full_record(self.raw_response, id)
  else
    url = SRU_SERVER_CONFIG["url-pattern"]["id-lookup"].gsub(/\{id\}/, id).gsub(/\{authority\-id\}/, self.sub_authority)
    parse_full_record(Nokogiri::XML(open(url)), id)
  end
  
end

#parse_authority_response ⇒ Object 



29
30
31
32
33
34
35
 
# File 'lib/qa/authorities/oclcts.rb', line 29

def parse_authority_response
  r = Array.new
  self.raw_response.xpath('sru:searchRetrieveResponse/sru:records/sru:record/sru:recordData', 'sru' => 'http://www.loc.gov/zing/srw/').each do |record|
    r.append({"id" => record.xpath('Zthes/term/termId').first.content, "label" => record.xpath('Zthes/term/termName').first.content})
  end
  self.response = r
end

#parse_full_record(raw_xml, id) ⇒ Object 



47
48
49
50
51
52
53
54
55
56
 
# File 'lib/qa/authorities/oclcts.rb', line 47

def parse_full_record(raw_xml, id)
  a = {}
  zthes_record = raw_xml.xpath("sru:searchRetrieveResponse/sru:records/sru:record/sru:recordData/Zthes/term[termId='" + id + "']", 'sru' => 'http://www.loc.gov/zing/srw/');
  zthes_record.children.each do | child | 
    if (child.is_a? Nokogiri::XML::Element) && (!child.children.nil?) && (child.children.size == 1) && (child.children.first.is_a? Nokogiri::XML::Text)
      a[child.name] = child.children.first.to_s;    
    end
  end
  a;
end

#results ⇒ Object 



58
59
60
 
# File 'lib/qa/authorities/oclcts.rb', line 58

def results
  self.response.to_json
end