Hi Nigel,
I got the point but how can I create that tree structure if the parser give
me back :
{:job_id=>"2763.spark.space.ad"@8,
:job_name=>"STDIN"@42,
:job_owner=>"[email protected]"@64,
:resources_used_cput=>"00:00:00"@116,
:resources_used_mem=>"3152kb"@150,
:resources_used_vmem=>"32528kb"@183,
:resources_used_walltime=>"00:07:40"@221,
:job_state=>"R"@246,
:queue=>"bio"@260,
:server=>"spark.ingm.ad"@277,
:checkpoint=>"u"@308,
:ctime=>"Thu Aug 29 18:09:26 2013"@322}
Or better, how do I need to write the parser ?
You can have a look
https://github.com/helios/torque_rm/blob/master/lib/torque_rm/qstat.rb#L46-L112
On Sat, Aug 31, 2013 at 3:32 PM, Nigel Thorne <[email protected]> wrote:
> From http://kschiess.github.io/parslet/transform.html
>
> class MyTransform < Parslet::Transform
>
> rule('a') { 'b' }
>
> end
> MyTransform.new.apply('a') # => "b"
>
> A Transform class, when applied, looks through it's known rules, and applies
> any that match. Applying a rule replaces the matched object with the result
> of the associated block. It has to match a whole object, so you can't match a
> single key from a hash. You have to match the whole hash. One way around this
> is to make your parser generate a tree that is a little less flat. So.. if
> instead your output was
>
> {..., :ctime => {time: "Thu Aug 29 18:09:26 2013"} }
>
> You could then do something like this
>
> class MyTransform < Parslet::Transform
>
> rule(:time => simple(:time)) { DateTime.parse(time) }
>
> end
> MyTransform.new.apply(your_tree)
>
> This would result in a tree with the whole {time => ...} hash replaced the a
> DateTime value. In this case:
>
> {..., :ctime => #<DateTime: 2013-08-29T18:09:26+00:00 ...> }
>
> I hope this helps.
>
>
> ---
> "No man is an island... except Philip"
>
>
> On Sat, Aug 31, 2013 at 9:30 PM, Ra <[email protected]> wrote:
>
>> Dear Kaspar,
>> your parselet is wonderful and I'm using it as part of a library for
>> managing TORQUE/PBS, parselet is use mostly for extracting info form qstat.
>> This is just an example of the object returned from my parser:
>>
>> {:job_id=>"2763.spark.space.ad"@8,
>> :job_name=>"STDIN"@42,
>> :job_owner=>"[email protected]"@64,
>> :resources_used_cput=>"00:00:00"@116,
>> :resources_used_mem=>"3152kb"@150,
>> :resources_used_vmem=>"32528kb"@183,
>> :resources_used_walltime=>"00:07:40"@221,
>> :job_state=>"R"@246,
>> :queue=>"bio"@260,
>> :server=>"spark.ingm.ad"@277,
>> :checkpoint=>"u"@308,
>> :ctime=>"Thu Aug 29 18:09:26 2013"@322}
>>
>>
>> some keys are "maybe" so I do not have the guarantees that all of them
>> will be available to all the objects, btw that is fine because qstat not
>> always report everything.
>> I read the documentation many times but I did understand how to convert
>> the parser's result:
>>
>> for instance, I'd like to have ctime as a DateTime object and
>> resources_used_mem
>> as a numeric ...
>>
>>
>> could you give me some advice on how to correctely transform my output ?
>>
>> Cheers.
>>
>> --
>> Raoul
>>
>
>
--
Ra
