Hi Andrea, Thanks for your help. I wrote a ListPPIO extending XMLPPIO and it works well.
Cheers, Fanny From: [email protected] [mailto:[email protected]] On Behalf Of Andrea Aime Sent: Monday, November 21, 2016 11:34 AM To: MARTIN, FANNY Cc: [email protected] Subject: Re: [Geoserver-users] List as output of WPS process Hi Martin, you just need to write a ProcessParameterIO that can encode objects of type List into some format of your choice. The main issue I see is that list is pretty generic, the actual content of the list is what of needs encoding, so I'd suggest to create first a ListOfFoo extends List<Foo> type, and then build a ProcessParameterIO that can specifically encode ListOfFoo into something (XML, JSON, whatever). Cheers Andrea On Mon, Nov 21, 2016 at 10:49 AM, MARTIN, FANNY <[email protected]<mailto:[email protected]>> wrote: Dear all, I would like to have lists as a result of a WPS process. In the GeoserverProcess interface implementation, I have described it as the following: @DescribeResults({ @DescribeResult(name = "output1", description = "output list 1", type=List.class, meta = { "mimeTypes=text/xml" }), @DescribeResult(name = "output2", description = "output list 2", type=List.class, meta = { "mimeTypes=text/xml" }) }) public Map<String, Object> execute ….. However, I get an error with the output list type : Blacklisting process …… as the output …… of type interface java.util.List cannot be handled. I notice that I get a similar error for a predefined process into Geoserver : Blacklisting process ras:RasterZonalStatistics2 as the output zonal statistics of type interface java.util.List cannot be handled After looking on the internet, I don’t find any information about this error, then any help welcome. I am using Geoserver 2.8.1 Tomcat installation. Is the list output type handled by this version ? If so, what is the correct way to define a process handling list as outputs ? Otherwise, what is the best way to handle lists as output: definition of PPIO for java.util.List type ? Custom results type ? Thanks in advance, Fanny Ce message et toutes les pièces jointes (ci-après le "message") sont établis à l’intention exclusive des destinataires désignés. Il contient des informations confidentielles et pouvant être protégé par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir immédiatement l'expéditeur et de détruire le message. Toute utilisation de ce message non conforme à sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse de l’émetteur. L'internet ne garantissant pas l'intégrité de ce message lors de son acheminement, Atos (et ses filiales) décline(nt) toute responsabilité au titre de son contenu. 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