Re: [dotNetRDF-Support] connection to Virtuoso store

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This is a bug in dotNetRDF's Virtuoso support, we're expecting all graph
URIs to be absolute and your store contains some relative graph URIs.

I have filed this as VIRT-375 [1] and will aim to have this fixed for the
next release.

Regards,

Rob

[1]: http://dotnetrdf.org/tracker/Issues/IssueDetail.aspx?id=375

From:  manuel buitre <man...@ho...>
Reply-To:  dotNetRDF User Help and Support
<dot...@li...>
Date:  Sunday, September 15, 2013 11:53 PM
To:  dotNetRDF User Help and Support
<dot...@li...>
Subject:  Re: [dotNetRDF-Support] connection to Virtuoso store

> Hi Rob
> thanks for the answer!
>  
> I am using version 1.0.0.2473
>  
> This is the error read from View Error Trace option:
>  
> Underlying Store returned an error while trying to List Graphs
> Server stack trace:
>    at VDS.RDF.Storage.VirtuosoManager.ListGraphs()
>    at VDS.RDF.Utilities.StoreManager.Tasks.ListGraphsTask.RunTaskInternal()
>    at 
> System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntP
> tr md, Object[] args, Object server, Int32 methodPtr, Boolean
> fExecuteInContext, Object[]& outArgs)
>    at 
> System.Runtime.Remoting.Messaging.StackBuilderSink.PrivateProcessMessage(Runti
> meMethodHandle md, Object[] args, Object server, Int32 methodPtr, Boolean
> fExecuteInContext, Object[]& outArgs)
>    at 
> System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessag
> e msg, IMessageSink replySink)
> Exception rethrown at [0]:
>    at System.Runtime.Remoting.Proxies.RealProxy.EndInvokeHelper(Message
> reqMsg, Boolean bProxyCase)
>    at System.Runtime.Remoting.Proxies.RemotingProxy.Invoke(Object NotUsed,
> MessageData& msgData)
>    at 
> VDS.RDF.Utilities.StoreManager.Tasks.BaseTask`1.RunTaskInternalDelegate.EndInv
> oke(IAsyncResult result)
>    at 
> VDS.RDF.Utilities.StoreManager.Tasks.BaseTask`1.CompleteTask(IAsyncResult
> result)
> Inner Exception:
> Virtuoso returned a URI Node which has a relative URI, unable to resolve the
> URI for this node
>    at VDS.RDF.Storage.VirtuosoManager.LoadNode(INodeFactory factory, Object n)
>    at VDS.RDF.Storage.VirtuosoManager.Query(IRdfHandler rdfHandler,
> ISparqlResultsHandler resultsHandler, String sparqlQuery)
>    at VDS.RDF.Storage.VirtuosoManager.Query(String sparqlQuery)
>    at VDS.RDF.Storage.VirtuosoManager.ListGraphs()
> 
> Regards
>  Manuel 
> 
> Date: Sun, 15 Sep 2013 15:15:29 -0700
> From: rv...@do...
> To: dot...@li...
> Subject: Re: [dotNetRDF-Support] connection to Virtuoso store
> 
> The Store Manager tool should allow you to see a more detailed error trace
> under the Tasks tab for a connection assuming you are using a relatively up to
> date version of the tool.  Right click on the task that failed and select the
> View Error Trace option, providing this information may allow us to help you
> further.
> 
> Virtuoso returns some graph names that are not valid as far as dotNetRDF is
> concerned and these should automatically be discarded, however if you are
> using an older version of the tool you may not have that fix.  What version
> are you using?  Help > About will give you this information
> 
> Regards,
> 
> Rob
> 
> From:  manuel buitre <man...@ho...>
> Reply-To:  dotNetRDF User Help and Support
> <dot...@li...>
> Date:  Sunday, September 15, 2013 2:42 PM
> To:  "dot...@li..."
> <dot...@li...>
> Subject:  [dotNetRDF-Support] connection to Virtuoso store
> 
>> Good evening,
>> I have the following problem:
>>  
>> When I try to connect to Virtuoso server using tool dotNetRef Store Manager ,
>> I receive this error:
>> 
>> "---------------------------
>> Graph List Unavailable
>> ---------------------------
>> Unable to list Graphs due to the following error:
>> Underlying Store returned an error while trying to List Graphs
>> ---------------------------"
>>  
>> However I can see the graphs if I use Virtuoso tool like conductor; any idea?
>> I am using Virtuoso Openlink 6.1
>>  
>>    Regards
>>   Manuel
>> 
>>        
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