Class: Alexandria::BookProviders::DoubanProvider

Inherits:
GenericProvider show all
Includes:
Logging
Defined in:
lib/alexandria/book_providers/douban.rb

Constant Summary collapse

SITE = 
"http://www.douban.com"
BASE_URL = 
"http://api.douban.com/book/subjects?q=%s&max-results=5&alt=json"

Instance Attribute Summary

Attributes inherited from AbstractProvider

#fullname, #name, #prefs

Instance Method Summary collapse

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 ⇒ DoubanProvider

Returns a new instance of DoubanProvider.



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# File 'lib/alexandria/book_providers/douban.rb', line 24

def initialize
  super("Douban", "Douban (China)")
  prefs.read
end

Instance Method Details

#parse_search_result(response) ⇒ Object 



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# File 'lib/alexandria/book_providers/douban.rb', line 70

def parse_search_result(response)
  book_search_results = []
  begin
    # dbresult = JSON.parse(response)
    dbresult = YAML.safe_load(json2yaml(response))
    # File.open(",douban.yaml", "wb") {|f| f.write(json2yaml(response)) }
    if dbresult["opensearch:totalResults"]["$t"].to_i > 0
      dbresult["entry"].each do |item|
        name = item["title"]["$t"]
        isbn = nil
        publisher = nil
        pubdate = nil
        binding = nil
        item["db:attribute"].each do |av|
          isbn = av["$t"] if av["@name"] == "isbn13"
          publisher = av["$t"] if av["@name"] == "publisher"
          pubdate = av["$t"] if av["@name"] == "pubdate"
          binding = av["$t"] if av["@name"] == "binding"
        end
        authors = if item["author"]
                    item["author"].map { |a| a["name"]["$t"] }
                  else
                    []
                  end
        image_url = nil
        item["link"].each do |av|
          image_url = av["@href"] if av["@rel"] == "image"
        end
        book = Book.new(name, authors, isbn, publisher, pubdate, binding)
        book_search_results << [book, image_url]
      end
    end
  rescue StandardError => ex
    log.warn(ex.backtrace.join('\n'))
  end
  book_search_results
end

#search(criterion, type) ⇒ Object

Raises:



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# File 'lib/alexandria/book_providers/douban.rb', line 33

def search(criterion, type)
  keyword = criterion
  request_url = BASE_URL % CGI.escape(keyword)

  search_response = transport.get_response(URI.parse(request_url))

  results = parse_search_result(search_response.body)
  raise NoResultsError if results.empty?

  if type == SEARCH_BY_ISBN
    results.first
  else
    results
  end
end

#url(_book) ⇒ Object 



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# File 'lib/alexandria/book_providers/douban.rb', line 29

def url(_book)
  nil
end