Hello, there is this button "Save Values" on the "Results" view. Can I somehow trigger its functionality from my plugin activity? The results to be stored would come from a nested dataflow.
Regards Dennis On 20.07.2010 13:20, David R Newman wrote: > Hi Dennis, > > Unfortunately one of the much discussed topics about SPARQL endpoints is how > it might be possible to authenticate users so they can query over all the > RDF they are permitted to access. RDF data is commonly added to > triplestores that back SPARQL endpoints as graphs, (individual RDF files). > In the case of myExperiment, these graphs would be sufficiently atomic that > each user would have permission to access an exact subset of these graphs. > SPARQL provides a facility to only query over specific graphs but I don't > think anyone has ever tested this with a subset of graphs as large (i.e. in > the thousands) as would be required here. If this was possible I would > still be nervous that users may have access to RDF data they are not > permitted to see, until I had performed significant testing. > > A simpler and more robust solution would be to provide users with a service > that would allow they to download all the myExperiment RDF they were > permitted to access (zipped this would be quite small) that they could then > manage their own SPARQL endpoint. This would have the disadvantage of > requiring a script on a cron job to regularly update their triplestore. It > might be possible for myExperiment to provide a trial service that would > allow users to request their up-to-date RDF subset be put in a > myExperiment-hosted triplestore that they could they query through a SPARQL > endpoint only they can access. I will give this some further thought. > > Regards > > David Newman > > > -----Original Message----- > From: Dennis Neumann [mailto:[email protected]] > Sent: 20 July 2010 11:19 > To: List for general discussion and hacking of the Taverna project > Subject: Re: [Taverna-hackers] MyExperiment workflow ID > > Hi, and thanks for your answers! > > I got it to work now, but only for public workflows. For the non-rdf API, I > would use preemptive authentication like this to get a private workflow: > > String urlString = > "http://www.myexperiment.org/workflows.xml?id=12345";; > HttpClient client = new HttpClient(); > > client.getParams().setAuthenticationPreemptive(true); > client.getState().setCredentials( > new AuthScope("www.myexperiment.org", 80), > new UsernamePasswordCredentials("user", > "password")); > > GetMethod get = new GetMethod(urlString); > get.setDoAuthentication(true); > > client.executeMethod(get); > > > I tried a similar thing for the rdf API, but it doesn't work. I get an empty > xml result if the workflow requires authentication. So, the uri from David: > > http://rdf.myexperiment.org/sparql?query=PREFIX+mecontrib%3A+%3Chttp%3A% > 2F%2Frdf.myexperiment.org%2Fontologies%2Fcontributions%2F%3E%0D%0APREFIX > +rdf%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23%3E% > 0D%0APREFIX+mecomp%3A+%3Chttp%3A%2F%2Frdf.myexperiment.org%2Fontologies% > 2Fcomponents%2F%3E%0D%0APREFIX+dcterms%3A+%3Chttp%3A%2F%2Fpurl.org%2Fdc% > 2Fterms%2F%3E%0D%0ASELECT+%3Fworkflow%0D%0AWHERE+%7B+%0D%0A++%3Fdataflow > +dcterms%3Aidentifier+%3Fidentifier+.%0D%0A++%3Fworkflow+mecomp% > 3Aexecutes-dataflow+%3Fdataflow+%3B%0D%0A++++rdf%3Atype+mecontrib% > 3AWorkflow%0D%0A++FILTER+regex%28%3Fidentifier%2C% > 273bd356a4-fc82-4ec8-8fcb-5960f40b2e8f%27%29%0D%0A%7D > > works fine, but if I replace the id with one of my own, then it doesn't find > the workflow. > So the question is: Can I use the rdf API to retrieve an id of a private > workflow? > > Regards, > Dennis > > > > > ---------------------------------------------------------------------------- > -- > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > taverna-hackers mailing list > [email protected] > Web site: http://www.taverna.org.uk > Mailing lists: http://www.taverna.org.uk/about/contact-us/ > Developers Guide: http://www.taverna.org.uk/developers/ > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > taverna-hackers mailing list > [email protected] > Web site: http://www.taverna.org.uk > Mailing lists: http://www.taverna.org.uk/about/contact-us/ > Developers Guide: http://www.taverna.org.uk/developers/ > ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. 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