>Yesterday, that would have been the way to do it.

:-)  Got to move quick to keep up round here.  Thanks for those changes, sounds 
much easier now and I'll give that a try.

Cheers

Bill


On 6 May 2011, at 10:27, Andy Seaborne wrote:

> 
> 
> On 05/05/11 11:06, Bill Roberts wrote:
>> Hi Andy
>> 
>> Thanks for your explanation of the current situation a couple of days
>> ago. I'm happy to have a go at hacking something together so that
>> Joseki can make use of the timeout mechanism, but would welcome some
>> pointers on how to get started.
>> 
>> Looks like I would need to adapt the existing SPARQL.java processor
>> in Joseki to call the setTimeout method of QueryExecution before
>> running the query - so in SPARQL.executeQuery, somewhere before the
>> call to qexec.execSelect() etc. (and if I wanted to get fancy I could
>> read the value out of the config file and pass it through the various
>> service set up classes).
>> 
>> What happens if the query does time out - does it return the result
>> set 'so far'? If no results have been found, does it return an empty
>> result set? Any exception to be caught and handled?  Should I do
>> something extra in the ResponseCallback?
>> 
>> Thanks in advance for any advice
>> 
>> Bill
> 
> Yesterday, that would have been the way to do it.
> 
> But it's a bit of a burden and short term so I went into ARQ and added the 
> possibility of global default query timeouts.  You'll still have to modify 
> Joseki but it now can be done in server initialization code, not needing to 
> add a processor.
> 
> ARQ now has:
> 
> ARQ.getContext().set(ARQ.queryTimeout, "1000")) ;
> 
> sets the timeout globally to 1 second (1000ms)).  More details in the 
> javadoc. ARQ 2.8.9-SNAPSHOT built with that in it.
> 
> I just did a Joseki release based on ARQ 2.8.8 so now Joseki changes needing 
> ARQ chnages don't block a release.
> 
> Joseki POM now says 3.4.5-SNAPSHOT and depends on ARQ 2.8.9-SNAPSHOT
> 
>       Andy

Reply via email to