Hi Reto, interesting, can you give some more information about the differences of the Contenthub and fusepool-ecs?
What is the license of the Fusepool code? Could not find any hint in Github or maybe overlooked it. Best, - Fabian Am 18.07.2013 17:27 schrieb "Reto Bachmann-Gmür" <r...@apache.org>: > Hi Arthi > > The FROM clause in sparql is to use another graph than the default > graph (i.e. the one you select in the drop-down menu in the form) it > does not allow to access RDF data on a remote host. You can just > access the different graphs stored within the clerezza graphstore. > > Unfortunately the contenthub uses an invalid name for the graph (it > should be an IRI) and this breaks the query capabilities > (STANBOL-1066). In the fusepool project we found the separation of > indexed data data RDF data too limiting and thus replaced the > contenthub component with fusepool-ecs > (https://github.com/fusepool/fusepool-ecs/). Too see it in action see > here: http://beta.fusepool.com/firstswim. > > Cheers, > Reto > > On Thu, Jul 18, 2013 at 1:48 PM, <arthi.ven...@wipro.com> wrote: > > Thanks a lot Rafa. > > I now understood the role of Contenthub and how to use same. > > The issue with my previous approach was that I was trying to upload > > the enhancement rather than the plain text and as a result nothing > > was getting uploaded. > > > > I had one more question from SPARQL endpoint of Stanbol can I query > > an external RDF graph which is not part of Stanbol. > > RDF is visible through an ipaddress:port interface. > > Can I make the SPARQL query to this along with the local enhanced graph. > > If yes what will be the syntax. > > > > Tried below call > > SELECT * > > FROM Ipaddress:8080 > > { ?s ?p ?o } > > LIMIT 10 > > > > Call was returning something but did not seem relevant. > > How to make this query? > > > > Thanks and Rgds, > > Arthi > > > > Hi Arthi, > > > > The Stanbol Contenthub component is an Apache Solr based document > > repository, it is not a triple store. It should be use to store > > documents with textual content along with RDF metadata. You can find > > proper documentation about its usage in [1]. Basically, by default, if > > you submit a file(document) to the ContentHub, it will try to enhance it > > using the enhancement chain passed by parameter (default chain if the > > parameter value is missing), extract the entities and store them along > > with the original content in a semantic index in Solr. Besides this, the > > resultant enhancement structure (enhancement graph) is stored in a graph > > registered in the system (org.apache.stanbol.contenthub.enhancements). > > You can then query this graph using the SPARQL endpoint provided by > > Stanbol. > > > > I'm not completely sure about it, but I think that If you directly > > upload a RDF/XML file to the ContentHub, it is going to try to enhance > > it (as normal text) because currently the only format supported for the > > content is text/plain. If you need to put together the enhancement > > results and some custom metadata in RDF, you can use the metadata > > parameter of the REST services of the ContentHub. Take a look to the > > REST API at [2]. If you are using Java for your integration, you can see > > some examples about how to upload content and enhancements + custom > > metadata to the ContentHub in [3]. > > > > Hope this helps. Regards > > > > [1] - > > > http://stanbol.apache.org/docs/trunk/components/contenthub/contenthub5min > > [2] - http://dev.iks-project.eu:8081/contenthub/contenthub/store > > [3] - https://github.com/zaizi/apache-stanbol-client > > > > El 17/07/13 15:36, arthi.ven...@wipro.com escribió: > >> Hi, > >> I have a requirement to query the enhancement as done by Stanbol > enhancer along with > > another RDF data ( data store supports SPARQL endpoint) > >> I ran the custom enhancer chain from the curl command. I piped the > RDF/XML output to > > a local file. > >> I than uploaded this to the content hub. > >> When I ran the default SPARQL query from the SPARQL web page I got no > results. > >> I assumed that once I upload an RDF file into content hub then the > query will run on > > this. > >> Is this understanding correct? > >> What am I doing wrong here? > >> > >> If I now need to query across both the data ( the RDF file as well as > the other RDF endpoint > > ) > >> In the ContentHub if I paste the other RDF URL in the Submit a public > resource by URL > > will the query now happen across both these data. > >> > >> is there any simple code from which I can run the above case. > >> > >> > >> Sorry for the newbee question. I have read multiple documents but could > not find a resolution. > >> > >> Thanks for your help and regards, > >> Arthi > >> > >> > >> Please do not print this email unless it is absolutely necessary. > >> > >> The information contained in this electronic message and any > attachments to this message > > are intended for the exclusive use of the addressee(s) and may contain > proprietary, confidential > > or privileged information. If you are not the intended recipient, you > should not disseminate, > > distribute or copy this e-mail. Please notify the sender immediately and > destroy all copies > > of this message and any attachments. > >> > >> WARNING: Computer viruses can be transmitted via email. The recipient > should check this > > email and any attachments for the presence of viruses. The company > accepts no liability for > > any damage caused by any virus transmitted by this email. > >> > >> www.wipro.com > >> > > > > > > -- > > > > > > From: arthi venkataraman (WT01 - CTO Office) > > Sent: Wednesday, July 17, 2013 7:47 PM > > To: dev@stanbol.apache.org > > Subject: RE: Simple example for querying across multiple RDF graphs > > > > Hi , > > Adding I have used the WHERE clause in the SPARQL to point to both the > graphs in the SPARQL query. > > However I do not get results. > > > > Is there a way I can directly access any graph from the SPARQL endpoint > using WHERE clause or is there a need to first upload to the ContentHub > before the query > > can be run. > > Is there any simple Jave code which can be referred for running same. > > > > Thanks and Rgds, > > Arthi > > > > > > > > > > > > From: arthi venkataraman (WT01 - CTO Office) > > Sent: Wednesday, July 17, 2013 7:07 PM > > To: dev@stanbol.apache.org<mailto:dev@stanbol.apache.org> > > Subject: Simple example for querying across multiple RDF graphs > > > > Hi, > > I have a requirement to query the enhancement as done by Stanbol > enhancer along with another RDF data ( data store supports SPARQL > endpoint) > > I ran the custom enhancer chain from the curl command. I piped the > RDF/XML output to a local file. > > I than uploaded this to the content hub. > > When I ran the default SPARQL query from the SPARQL web page I got no > results. > > I assumed that once I upload an RDF file into content hub then the query > will run on this. > > Is this understanding correct? > > What am I doing wrong here? > > > > If I now need to query across both the data ( the RDF file as well as > the other RDF endpoint ) > > In the ContentHub if I paste the other RDF URL in the Submit a public > resource by URL will the query now happen across both these data. > > > > is there any simple code from which I can run the above case. > > > > > > Sorry for the newbee question. I have read multiple documents but could > not find a resolution. > > > > Thanks for your help and regards, > > Arthi > > > > > > Please do not print this email unless it is absolutely necessary. > > > > The information contained in this electronic message and any attachments > to this message are intended for the exclusive use of the addressee(s) and > may contain proprietary, confidential or privileged information. If you are > not the intended recipient, you should not disseminate, distribute or copy > this e-mail. Please notify the sender immediately and destroy all copies of > this message and any attachments. > > > > WARNING: Computer viruses can be transmitted via email. The recipient > should check this email and any attachments for the presence of viruses. > The company accepts no liability for any damage caused by any virus > transmitted by this email. > > > > www.wipro.com >
