Backgroundrb devel - Jul 2007 - Backgroundrb and timeout connections

Hi

We have a RoR application which needs to get the contents of RSS feeds. 
The application opens HTTP connections, but the problem is that we have 
frequently Timeout::Error because of feeds are not available. It seems 
it''not possible to reduce the time of timeout in Ruby... So,
I''m
wondering if there is way to solve this with Backgroundrb.

Best regards,


Julien

On 7/20/07, Julien Biard <julien.biard at citycampus.com>
wrote:
> Hi
>
> We have a RoR application which needs to get the contents of RSS feeds.
> The application opens HTTP connections, but the problem is that we have
> frequently Timeout::Error because of feeds are not available. It seems
> it''not possible to reduce the time of timeout in Ruby... So,
I''m
> wondering if there is way to solve this with Backgroundrb.
>
> Best regards,
I am afraid BackgrounDRb can''t help you there, but you can handle
timeout errors like this.

class FeedWorker
  def do_work
    yahoo_url = "http://finance.yahoo.com/rss/headline?s="
    symbol_list =
[''IBM'',''GOOG'',''FUCK'']

    symbol_list.each do|sym|
      temp_url = yahoo_url + sym
      begin
        get_feeds(temp_url,sym)
      rescue Timeout::Error
        next
      rescue
        puts $!
        puts $!.backtrace
        next
      end
    end
  end

  def get_feeds(url,temp_sym)
    open(url) do |http|
      t_response = http.read
      puts t_response
    end
  end
end

If you really want to reduce timeout period for attempting fetch of a
page, then you call the method get_feeds in a block like this:

begin
  timeout(3) do
    get_feeds(temp_url,sym)
  end
rescue Timeout::Error

end

I hope this solves your problem.

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