Re: [Geotools-devel] Problems integrating Sextante with GeoTools SPI

[Jody G. <jod...@gm...>]

Andrea Aime wrote:
> Jody Garnett ha scritto:
>   
>> Hi Andrea;
>>
>> gt-process is still unsupported; indeed I am hoping for feedback from
>> the process of intergrating sextante in order to refine this api. 
>>     
>
> So, do you think it would make sense to have the factory generate
> multiple algorithms 
That part is fine.
> and have the algorithm describe itself like in Sextante?
>   
Based on your description below it sounds like we need more detailed 
information then "like in Sextante".
> As an alternative, we could split out a descriptive object,
> ProcessMetadata, and have the factory and the algorithm return it
> on demand:
>
> ProcessFactory {
>    Process getAlgorithm(String name);
>    ProcessDescription describeAlgorithm(String name)
> }
>
> Process {
>    ...
>    ProcessDescription describeAlgorithm();
>    ...
> }
>   
Understood; if you go to a "multi" approach (which seems the only way 
around factory spi) we will need to allow the factory to provide a list 
of descriptive objects.
>> I would love to know what kind of descriptive information sextante
>> provides (since we ended up needing quite a bit for gt-process - in
>> order to support wps).
>>     
>
> From a cursory look it covers decently the WPS metadata, it has a name and a title, thought it does not have an extensive description it seems. Same goes for the parameters, no description but we have name and title.
>   
This will present quite the challenge will it not? We have been 
gradually documenting additional keys for our metadata map (for things 
like CRS, Length etc...).

Jody