Class: WordTree::Librarian

Inherits:
Object
  • Object
show all
Defined in:
lib/wordtree/librarian.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(library) ⇒ Librarian

Returns a new instance of Librarian.



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# File 'lib/wordtree/librarian.rb', line 10

def initialize(library)
  @library = library
end

Instance Attribute Details

#library ⇒ Object (readonly)

Returns the value of attribute library.



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# File 'lib/wordtree/librarian.rb', line 8

def library
  @library
end

Instance Method Details

#archive_org_get(conditions, &block) ⇒ Object

Downloads a set of books to the on-disk library and returns a list of book_ids



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# File 'lib/wordtree/librarian.rb', line 39

def archive_org_get(conditions, &block)
  archdown = Archdown.new
  [].tap do |archive_org_ids|
    archdown.download_all(conditions) do |metadata, content, failure|
      if failure
        #TODO: logging
        $stderr.puts "Unable to download from archive.org: #{failure}"
      else
        book = Book.create(metadata["archive_org_id"], metadata, content)
        save(book)
        yield book, self if block_given?
        archive_org_ids << book.id
      end
    end
  end
end

#archive_org_get_book(book_id, &block) ⇒ Object 



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# File 'lib/wordtree/librarian.rb', line 24

def archive_org_get_book(book_id, &block)
  archive_org_get({
    :filters => ["identifier:#{book_id}"]
  }, &block)
end

#archive_org_get_range_of_years(start_year, end_year, &block) ⇒ Object 



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# File 'lib/wordtree/librarian.rb', line 30

def archive_org_get_range_of_years(start_year, end_year, &block)
  archive_org_get({
    :start_year => start_year,
    :end_year   => end_year
  }, &block)
end

#find(book_id) ⇒ Object 



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# File 'lib/wordtree/librarian.rb', line 14

def find(book_id)
  retrieved = Preamble.load(library.path_to(book_id))
  Book.create(book_id, retrieved.metadata, retrieved.content)
end

#save(book) ⇒ Object 



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# File 'lib/wordtree/librarian.rb', line 19

def save(book)
  library.mkdir(book.id)
  Preamble.new(book.metadata, book.content).save(library.path_to(book.id))
end