Class: Alexandria::BookProviders::LOCProvider

Inherits:
Z3950Provider show all
Includes:
GetText
Defined in:
lib/alexandria/book_providers/z3950.rb

Instance Attribute Summary

Attributes inherited from AbstractProvider

#fullname, #name, #prefs

Instance Method Summary collapse

Methods inherited from Z3950Provider

#search

Methods included from Logging

included, #log

Methods inherited from AbstractProvider

#<=>, abstract?, #abstract?, #action_name, #enabled, #reinitialize, #remove, #toggle_enabled, #transport, unabstract, #variable_name

Constructor Details

#initialize ⇒ LOCProvider

Returns a new instance of LOCProvider.



200
201
202
203
204
205
206
207
208
 
# File 'lib/alexandria/book_providers/z3950.rb', line 200

def initialize
  super("LOC", _("Library of Congress (Usa)"))
  prefs.variable_named("hostname").default_value = "z3950.loc.gov"
  prefs.variable_named("port").default_value = 7090
  prefs.variable_named("database").default_value = "Voyager"
  prefs.variable_named("record_syntax").default_value = "USMARC"
  prefs.variable_named("charset").default_value = "ISO-8859-1"
  prefs.read
end

Instance Method Details

#url(book) ⇒ Object 



210
211
212
213
214
215
216
217
 
# File 'lib/alexandria/book_providers/z3950.rb', line 210

def url(book)
  isbn = Library.canonicalise_isbn(book.isbn)
  "http://catalog.loc.gov/cgi-bin/Pwebrecon.cgi?" \
    "DB=local&CNT=25+records+per+page&CMD=isbn+#{isbn}"
rescue StandardError => ex
  log.warn { "Cannot create url for book #{book}; #{ex.message}" }
  nil
end