Re: [sdx-users] [newbie] Programmatic use of SDX...

[Pierrick Brihaye]

Hi,

Remi Vankeisbelck a écrit :

> > Notice that the link describes a deprecated architecture, SDX' one 
> > though... Current design is described there : 
> > http://avalon.apache.org/framework/api/org/apache/avalon/framework/service/ServiceManager.html 
>
> Looks even simpler :-)
> But I'll have to read more to understand why it now handles "Objects" 
> instead of "Component"s... 

I have to read and understand as well :-) It's been a pain for me to 
understand COP design and those Avalon guys changed everything in the 
meantime, huh !

> Could you please use this occasion to provide a "standalone" 
> implementation ?
> lol :-)

Definitely, since this is a recurrent need to SDX users. Yours will be 
good starting point, for sure :-))

> My only "problem" is that implementations of Avalon interfaces are 
> provided by cocoon... Looks like it's not gonna be so easy to get rid of 
> it !

:-)

More than you could think :
http://wiki.cocoondev.org/Wiki.jsp?page=DevelopingComponents

> Moreover, even context-things are strongly relying on the Web App 
> context,

Not so suprising IMHO : it is an Apache project :-)

> Anyway, in my simple "do a search using methods" example, I guess I 
> don't even need to put my hands there...

Just a little ; all you have to do is to :

1) build a query :
http://www.nongnu.org/sdx/docs/html/doc-sdx2/apidocs/fr/gouv/culture/sdx/search/lucene/query/AbstractQuery.html#AbstractQuery()
2) set it up
http://www.nongnu.org/sdx/docs/html/doc-sdx2/apidocs/fr/gouv/culture/sdx/search/lucene/query/AbstractQuery.html#setUp(fr.gouv.culture.sdx.search.lucene.query.SearchLocations,%20org.apache.lucene.search.Query)
3) execute it :
http://www.nongnu.org/sdx/docs/html/doc-sdx2/apidocs/fr/gouv/culture/sdx/search/lucene/query/AbstractQuery.html#AbstractQuery()
4) do what you want with the results :
http://www.nongnu.org/sdx/docs/html/doc-sdx2/apidocs/fr/gouv/culture/sdx/search/lucene/query/Results.html
5) ... especially with the documents' IDs :
http://www.nongnu.org/sdx/docs/html/doc-sdx2/apidocs/fr/gouv/culture/sdx/search/lucene/query/Results.html
6) and it you want a document, just ask it to the DocumentBase :
http://www.nongnu.org/sdx/docs/html/doc-sdx2/apidocs/fr/gouv/culture/sdx/documentbase/DocumentBase.html#getDocument(fr.gouv.culture.sdx.document.Document)

> Actually, I think my only "problem" now would be to provide a 
> ServletContext to a "standalone" app :-)

No. The needed context is a 
org.apache.avalon.framework.context.DefaultContext 
(http://avalon.apache.org/framework/api/org/apache/avalon/framework/context/Context.html), 
not a javax.servlet.ServletContext. It would be up to your "root class" 
to provide this context.

> Actually, I wouldn't have no problems with cocoon if XSLT was not an 
> HTTP only thing :-)

:-)

> Well, it's been a real pleasure to have this talk ! You really explained 
> everything very well, that's far beyond most of the support I could find 
> even for commercial products ! I think I can now investigate the rest of 
> SDX by myself and stop bothering you with my philosophical 
> considerations :-)

They were welcome. A "standalone" SDX would be a great step forward, at 
least for one reason : provide a real test suite :-)

Cheers,

--
Pierrick Brihaye, informaticien
Service régional de l'Inventaire
DRAC Bretagne
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