Hi Tao,
can you share the bit of your Fuseki configuration where you point at the path
for your Lucene indexes?
#dataset> rdf:type tdb:DatasetTDB ;
...
ja:textIndex "/path/to/lucene/index/" ;
.
Can you do an ls -la of that directory to see the file sizes?
Can you try to point to a non existing directory and restart Fuseki?
If the directory exists an empty index will be created (this is a side effect
of opening a Lucene Directory when your Lucene index does not exist).
If the directory does not exist your dataset will be indexed.
Let's see if you can sort this out and let me know if you have ideas on how to
improve this.
Paolo
Tao (陶信东) wrote:
> Thanks Paolo. Now I can find the lucene files. But pf:textMatch still
> doesn't seem to work. See details below.
>
> select * where {?s rdfs:label ?o} limit 10
> ----------------------------------------------------------------------------
> -
> | s | o
> |
> ============================================================================
> =
> | <http://xmlns.com/foaf/0.1/LabelProperty> | "Label Property"
> |
> | <http://xmlns.com/foaf/0.1/Person> | "Person"
> |
> | <http://www.w3.org/2000/10/swap/pim/contact#Person> | "Person"
> |
> | <http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing> | "Spatial Thing"
> |
> | <http://xmlns.com/foaf/0.1/Document> | "Document"
> |
> | <http://xmlns.com/foaf/0.1/Organization> | "Organization"
> |
> | <http://xmlns.com/foaf/0.1/Group> | "Group"
> |
> | <http://xmlns.com/foaf/0.1/Agent> | "Agent"
> |
> | <http://xmlns.com/foaf/0.1/Project> | "Project"
> |
> | <http://xmlns.com/foaf/0.1/Image> | "Image"
> |
> ----------------------------------------------------------------------------
> -
>
> prefix pf: <http://jena.hpl.hp.com/ARQ/property#>
> select * where {?s pf:textMatch "+Label"} limit 10
> -----
> | s |
> =====
> -----
>
>
> -----Original Message-----
> From: Paolo Castagna [mailto:castagna.li...@googlemail.com]
> Sent: Thursday, April 26, 2012 10:26 PM
> To: jena-users@incubator.apache.org
> Subject: Re: [ANN] Release of Apache Jena LARQ 1.0.0-incubating
>
> Tao (陶信东) wrote:
>> Thanks Paolo, I'll try that.
>>
>> Meanwhile, would you please clarify whether Fuseki will build LARQ
>> index automatically, after the patch?
>
> Yes, if the directory does not exist LARQ will create it and build the
> Lucene index automatically, if a directory exists a Lucene index will be
> opened pointing to that directory (however, if the directory exists and it's
> empty, you'll have an empty Lucene index as result):
>
> if ( indexPath != null )
> {
> File path = new File(indexPath) ;
> if ( !path.exists() )
> {
> log.debug("Directory {} does not exist, building Lucene
> index...") ;
> path.mkdirs() ;
> build ( dataset, path ) ;
> }
> directory = FSDirectory.open(path);
> } else {
> directory = new RAMDirectory();
> }
>
> http://svn.apache.org/repos/asf/incubator/jena/Jena2/LARQ/tags/jena-larq-1.0
> .0-incubating/src/main/java/org/apache/jena/larq/assembler/AssemblerLARQ.jav
> a
>
>> Your reply and Venkat's seemed different regarding this.
>
> This is because things have been improved since the latest release.
>
> Paolo
>
>> Thanks
>> Tao
>>
>> -----Original Message-----
>> From: Paolo Castagna [mailto:castagna.li...@googlemail.com]
>> Sent: Wednesday, April 25, 2012 6:51 PM
>> To: jena-users@incubator.apache.org
>> Subject: Re: [ANN] Release of Apache Jena LARQ 1.0.0-incubating
>>
>> Hi Tao
>>
>> Tao(陶信东) wrote:
>>> Hi Paolo,
>>>
>>> This is great! I've been waiting for it since several weeks ago.
>> Good to know.
>>
>>> However, after I configured Fuseki for it by adding LARQ to my class
>>> path and the following lines to the assembly file, pf:textMatch
>>> doesn't work (the usual sparql query works).
>>>
>>> <#dataset> rdf:type tdb:DatasetTDB ;
>>> tdb:location "/path/to/my/tdb/indexes/" ;
>>> ja:textIndex "/path/to/lucene/index/" ;
>>> .
>>>
>>> Is Fuseki supported by this LARQ release?
>> Fuseki does not include LARQ.
>>
>> For more details, please, see also:
>> https://issues.apache.org/jira/browse/JENA-63
>> https://issues.apache.org/jira/browse/JENA-164
>>
>> The good news is that it is extremely easy to check out Fuseki
>> sources, patch the pom.xml file and repackage it (i.e. mvn package). See:
>> https://issues.apache.org/jira/secure/attachment/12504042/JENA-63_Fuse
>> ki_r12
>> 03107.patch
>> (be warned, that patch might not be up-to-date, but you see it's just
>> a new dependency on LARQ).
>>
>>> Or should I build the lucene index
>>> by myself when Fuseki started?
>> No, you do not need that.
>>
>> 1. Checkout Fuseki source code.
>> 2. Add LARQ dependency to the Fuseki pom.xml file 3. mvn package
>>
>> Let me know how it goes and if you have problems.
>>
>> Cheers,
>> Paolo
>>
>>> Thanks
>>> Tao
>>>
>>> -----Original Message-----
>>> From: Paolo Castagna [mailto:castagna.li...@googlemail.com]
>>> Sent: Tuesday, April 24, 2012 5:43 AM
>>> To: jena-users@incubator.apache.org
>>> Subject: [ANN] Release of Apache Jena LARQ 1.0.0-incubating
>>>
>>> LARQ 1.0.0-incubating has been released, this is the first release of
>>> LARQ as separate module and under the Apache License.
>>>
>>> LARQ is a combination of ARQ and Lucene aimed at providing developers
>>> with the ability to perform free text searches within their SPARQL
>> queries.
>>> Documentation for LARQ is available here:
>>>
>>> - http://incubator.apache.org/jena/documentation/larq/
>>> - http://incubator.apache.org/jena/documentation/javadoc/larq/
>>>
>>>
>>> == Mailing lists
>>>
>>> The user mailing list for Jena is jena-users@incubator.apache.org
>>> Send email to jena-users-subscr...@incubator.apache.org to subscribe.
>>>
>>> See also:
>>> http://incubator.apache.org/jena/help_and_support/index.html
>>>
>>>
>>> == About This Release
>>>
>>> The main new feature in this release is support for updating the
>>> Lucene index as RDF statements are added/removed to the Jena Model
>>> via the Jena APIs.
>>> Moreover, LARQ now depends on Apache Lucene 3.5.0.
>>>
>>>
>>> == Download
>>>
>>> Maven artifacts are here:
>>> http://repo1.maven.org/maven2/org/apache/jena/jena-larq/1.0.0-incubat
>>> i
>>> ng/
>>>
>>> Source release is here:
>>> http://www.apache.org/dyn/closer.cgi/incubator/jena/jena-larq-1.0.0-i
>>> n
>>> cubati
>>> ng
>>>
>>>
>>> == Status
>>>
>>> Apache Jena is an effort undergoing incubation at the Apache Software
>>> Foundation (ASF), sponsored by the Apache Incubator PMC.
>>>
>>> Incubation is required of all newly accepted projects until a further
>>> review indicates that the infrastructure, communications, and
>>> decision making process have stabilized in a manner consistent with
>>> other successful ASF projects.
>>>
>>> While incubation status is not necessarily a reflection of the
>>> completeness or stability of the code, it does indicate that the
>>> project has yet to be fully endorsed by the ASF.
>>>
>>> For more information about the incubation status of the Jena project
>>> you can go to the following page:
>>> http://incubator.apache.org/projects/jena.html
>>>
>
