new (OpenID::Store::Filesystem)

    # File lib/openid/store/filesystem.rb, line 15
          def initialize(directory)
            p_dir = Pathname.new(directory)
            @nonce_dir = p_dir.join('nonces')
            @association_dir = p_dir.join('associations')
            @temp_dir = p_dir.join('temp')

            self.ensure_dir(@nonce_dir)
            self.ensure_dir(@association_dir)
            self.ensure_dir(@temp_dir)
          end