On Sat, Dec 18, 2010 at 10:16 AM, Martin Jensen <[email protected]> wrote: > Thanks for the reply! > > I hope i'll bump into a project that can finance this! > > As for a short term solution, maybe R could be suported through my Postgis > datastore wehere I have R -functions based on the PL/R language. > > Is it possible to make a WPS process using the Postgis functions as backend
I think it is, thought I never tried that. A WPS process should be able to take data from anywhere, from a remote WFS, WCS and so on. Our WPS architecture abstracts that away from you, your process just need to take in GeoTools FeatureCollection (vector data) or GridCoverage (raster data) objects, and the framework will take care of dealing with all the possible input formats. Here are two possibe examples, one dealing with raster data. the other with vector data: http://svn.codehaus.org/geoserver/trunk/src/extension/wps/wps-core/src/main/java/org/geoserver/wps/gs/StyleCoverage.java http://svn.codehaus.org/geoserver/trunk/src/extension/wps/wps-core/src/main/java/org/geoserver/wps/gs/RectangularClipProcess.java A process that actually backs onto PostgreSQL provided functions would have to then connect to postgres, send the data over (I think, in a temporary table), run the computation, grab the result back as another feature collection, and clean up after the fact. Pretty doable, with a lot of code that can be reused from one pg backed process to the other, so it would be possible to make this easy by creating a base class or a set of utilities that factor out all the commonly reusable parts. Hope this helps Cheers Andrea > ? > > Martin > > > > > 2010/12/16 Andrea Aime <[email protected]> >> >> On Wed, Dec 15, 2010 at 11:32 PM, Martin Jensen >> <[email protected]> wrote: >> > I am really thrilled by the potential of WPS in Geoserver. >> > I have been using R spatial (http://r-spatial.sourceforge.net/) with >> > postgresql >> > (http://bostongis.com/?content_name=postgresql_plr_tut01#87) and >> > I think it would be great for the WPS roadmap to consider support for R >> > processes. >> > http://www.r-project.org/ >> > Any thouhgts on support for R in Geoserver WPS? >> >> Oh yeah, having R support would be indeed very nice (as it would be to >> have GRASS support). >> >> Afaik there are two challenges to overcome. >> The first is technical, about the communication between a Java based >> process and R. >> I think there is something around but not sure what the maintainance >> status >> >> The second is resourcing: new developments happen when either there is >> something that needs it >> that can also code, or when someone shows up with funding geared >> towards a professional >> GeoServer supporter (see the commercial support page). >> >> As far as I know at the moment we don't have neither the first, nor the >> second, >> but we can hope that will happen sometimes soon in the future :-) >> >> Cheers >> Andrea >> >> ----------------------------------------------------- >> Ing. Andrea Aime >> Senior Software Engineer >> >> GeoSolutions S.A.S. >> Via Poggio alle Viti 1187 >> 55054 Massarosa (LU) >> Italy >> >> phone: +39 0584962313 >> fax: +39 0584962313 >> >> http://www.geo-solutions.it >> http://geo-solutions.blogspot.com/ >> http://www.linkedin.com/in/andreaaime >> http://twitter.com/geowolf >> >> ----------------------------------------------------- > > > > -- > Med venlig hilsen > > Martin Bjærge Jensen > -- ----------------------------------------------------- Ing. Andrea Aime Senior Software Engineer GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584962313 fax: +39 0584962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf ----------------------------------------------------- ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
