[Mulgara-general] Help

[Bill OConnor]

Ok everything seems to load ok. The answer however doesn't have any
Is there a problem with the query?

-bill

On Mon, Jul 28, 2008 at 4:03 PM, Bill OConnor <wtoconnor at gmail.com> wrote:

> That is probably were I am don't know what I am doing. I thought server1
> could be arbitrarily
> chosen. I suppose that is defined in a config or something?
>
> thanks,
> bill
>
>
> On Mon, Jul 28, 2008 at 3:47 PM, Paul Gearon <gearon at ieee.org> wrote:
>
>> OK, it was pointed out to me that each of the content handlers is
>> checked to see if it can handle any given file. I was under the
>> impression that you wouldn't see a message in the normal case.
>>
>> A question I had when I wrote last time was about the server name you
>> were using. Have you set the server to use a name of "server2"? The
>> default is "server1", though it can be changed easily.
>>
>> Paul
>>
>> On Mon, Jul 28, 2008 at 5:38 PM, Paul Gearon <gearon at ieee.org> wrote:
>> > Hi Bill,
>> >
>> > The data you've provided to the load command is a file path without
>> > any other info. So the system uses the filename extension to try to
>> > work out what kind of data you've given it. In this case, your ".u8"
>> > extension was determined to be "mailbox" data.
>> >
>> > Try renaming the file (or creating a link to it) that uses .rdf as the
>> > extension.
>> >
>> > Regards,
>> > Paul
>> >
>> > On Mon, Jul 28, 2008 at 5:14 PM, Bill OConnor <wtoconnor at gmail.com>
>> wrote:
>> >> hello,
>> >>
>> >> I have been trying to get my head wrapped around mulgara and thought
>> that I
>> >> would try a small experiment.
>> >>
>> >> I downloaded dmoz constent.rdf.u8 and structure.rdf.u8 and wrote a
>> groovy
>> >> script to load them into a model.
>> >>
>> >> I then query the model but I never seem to get any results, probably
>> because
>> >> I do not understand something
>> >> about how mulgara works. Here is the code:
>> >>
>> >> import java.sql.*;
>> >>
>> >> // Mulgara packages
>> >> import org.mulgara.itql.
>> >> ItqlInterpreterBean;
>> >> import org.mulgara.query.Answer;
>> >>
>> >> ItqlInterpreterBean  i = new ItqlInterpreterBean();
>> >>
>> >> String query = "create <rmi://localhost/server2#content>;";
>> >> String answerString = i.executeQueryToString(query);
>> >>
>> >> println answerString;
>> >>
>> >>
>> >> File f = new File("/home/wto/Projects/content.rdf.u8");
>> >> URI  u = new URI("rmi://localhost/server2#content");
>> >> long r = i.load(f, u);
>> >> query = """select \$s \$p \$o from <rmi://localhost/server2#content>
>> where
>> >> \$s \$p \$o;""";
>> >> Answer answer = i.executeQuery(query);
>> >>
>> >> answer.beforeFirst();
>> >>
>> >> while(answer.next()){
>> >> println answer.getObject(0);
>> >> }
>> >>
>> >> The results are:
>> >>
>> >> <?xml version="1.0" encoding="UTF-8"?>
>> >> <answer xmlns="http://mulgara.org/tql#"><query><message>Successfully
>> created
>> >> graph rmi://localhost/server3#content</message></query></answer>
>> >>  INFO [main] (MulgaraXAResourceContext.java:84) - Creating
>> MulgaraXAResource
>> >>  INFO [main] (DataInputTx.java:97) - Sending local resource :
>> >> file:/home/wto/Projects/content.rdf.u8
>> >>  INFO [main] (MulgaraInternalTransaction.java:780) - Creating
>> Transaction:
>> >> 1801334, state=null, inuse=0, using=0
>> >>  INFO [main] (MulgaraInternalTransaction.java:780) - Finished Creating
>> >> Transaction: 1801334, state=CONSTRUCTEDUNREF, inuse=0, using=0
>> >>  INFO [main] (MulgaraInternalTransaction.java:780) - Executing
>> Operation:
>> >> 1801334, state=CONSTRUCTEDUNREF, inuse=0, using=0
>> >>  INFO [main] (MulgaraInternalTransaction.java:780) - Initiating
>> transaction:
>> >> 1801334, state=CONSTRUCTEDUNREF, inuse=0, using=0
>> >>  INFO [main] (MulgaraInternalTransactionFactory.java:277) - Beginning
>> >> Transaction
>> >>  INFO [main] (MBoxContentHandler.java:131) - Unable to parse streaming
>> >> content in mbox content handler.
>> >>
>> >> Any help would be appreciated.
>> >>
>> >> -bill
>> >> _______________________________________________
>> >> Mulgara-general mailing list
>> >> Mulgara-general at mulgara.org
>> >> http://mulgara.org/mailman/listinfo/mulgara-general
>> >>
>> >>
>> >
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>>
>
>
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