def facebook_stream_fetch
      return unless facebook_status == ConnectionStatus::NORMAL
      streams = @graph.get_connections("me", "home")
      streams.each { |post| stream_print_queue << graph2item(post) }
      log(:info, "fetch stream ok")
    rescue Koala::Facebook::ServerError
      retry_wait
    rescue Koala::Facebook::APIError
      expired_session
    rescue Exception => e
      error e
    end
def facebook_stream_fetch
      return unless facebook_status == ConnectionStatus::NORMAL
      streams = @graph.get_connections("me", "home")
      streams.each { |post| stream_print_queue << graph2item(post) }
      log(:info, "fetch stream ok")
    rescue Koala::Facebook::ServerError
      retry_wait
    rescue Koala::Facebook::APIError
      expired_session
    rescue Exception => e
      error e
    end
RULE: all facebook method should be prefix with facebook