Hi Johan,
With your setup and that data I got this to work:
PREFIX spatial: <http://jena.apache.org/spatial#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?placeName
{
?place spatial:nearby (51.382 -2.71909 10 'km') .
?place rdfs:label ?placeName
}
Your query has:
PREFIX geoarq: <http://jena.apache.org/GeoARQ/property#>
which should be <http://jena.apache.org/spatial#>
Specifying all 4 arguments seems to be necessary as well.
You may be interested in:
https://github.com/galbiston/geosparql-jena
which is a GeoSPARQL implementation for Jena.
The Jena project is discussing dropping the adhoc jena-spatial in favour
of this OGC GeoSPATQL compliant system.
Andy
On 12/12/2018 14:25, Johan Kumps wrote:
As it seems that attachements are not preserved here I copied my config
below. The data file can be found here :
https://github.com/apache/jena/blob/master/jena-spatial/src/test/resources/geoarq-data-1.ttl
@prefix : <http://base/#> .
@prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix fuseki: <http://jena.apache.org/fuseki#> .
@prefix spatial: <http://jena.apache.org/spatial#> .
@prefix geosparql: <http://www.opengis.net/ont/geosparql#> .
:service_tdb_all a fuseki:Service ;
rdfs:label "TDB mySpatialDataset" ;
fuseki:dataset :spatial_dataset ;
fuseki:name "mySpatialDataset" ;
fuseki:serviceQuery "query" , "sparql" ;
fuseki:serviceReadGraphStore "get" ;
fuseki:serviceReadWriteGraphStore
"data" ;
fuseki:serviceUpdate "update" ;
fuseki:serviceUpload "upload" .
:tdb_dataset_readwrite
a tdb:DatasetTDB ;
tdb:location
"D:\\software\\copyable\\apache-jena-fuseki-3.9.0\\run/databases/mySpatialDataset"
.
:spatial_dataset rdf:type spatial:SpatialDataset ;
spatial:dataset :tdb_dataset_readwrite ;
spatial:index <#indexSpatialLucene> ;
.
<#indexSpatialLucene> a spatial:SpatialIndexLucene ;
spatial:directory <file:Data/mySpatialDataset_spatial_index> ;
spatial:definition <#definition> ;
.
<#definition> a spatial:EntityDefinition ;
spatial:entityField "uri" ;
spatial:geoField "geo" ;
# custom geo predicates for 1) latitude/longitude
spatial:hasSpatialPredicatePairs (
[ spatial:latitude :latitude_1 ; spatial:longitude :longitude_1 ]
[ spatial:latitude :latitude_2 ; spatial:longitude :longitude_2 ]
) ;
# custom geo predicates for 2) Well Known Text Literal
spatial:hasWKTPredicates (:wkt_1 :wkt_2) ;
# custom SpatialContextFactory for 2) Well Known Text Literal
spatial:spatialContextFactory
"org.locationtech.spatial4j.context.jts.JtsSpatialContextFactory"
.
Op wo 12 dec. 2018 om 14:34 schreef Johan Kumps <[email protected]>:
Hi all,
I'm struggling with my setup of a Java application using Jena to connect
to a spatial dataset managed by Fuseki. Please find the configuration I use
within Fuseki in the attached mySpatialDataset.ttl file.
The command I use to run Fuseki is :
java -Xmx1200M -cp "fuseki-server.jar;jts-1.13.jar"
org.apache.jena.fuseki.cmd.FusekiCmd -debug %*
I uploaded the geoarq-data-1.ttl file with some data. Unfortunately my
query
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX geoarq: <http://jena.apache.org/GeoARQ/property#>
SELECT ?airport {
?s geoarq:nearby (51.3000 -2.71000) .
?s rdfs:label ?airport .
}
does not return anything altough when running the dataset embedded in my
JVM without using Fuseki it is working fine. I can see the index is being
created in my
%FUSEKI_HOME%\run\configuration\Data\mySpatialDataset_spatial_index folder.
Could you have a look at it and help me out please?
The output of the startup process is the following which seems to be fine :
[2018-12-12 14:30:21] Server INFO Apache Jena Fuseki 3.9.0
[2018-12-12 14:30:22] Config INFO
FUSEKI_HOME=D:\software\copyable\apache-jena-fuseki-3.9.0\.
[2018-12-12 14:30:22] Config INFO
FUSEKI_BASE=D:\software\copyable\apache-jena-fuseki-3.9.0\run
[2018-12-12 14:30:22] Config INFO Shiro file:
file://D:\software\copyable\apache-jena-fuseki-3.9.0\run\shiro.ini
[2018-12-12 14:30:23] Config INFO Configuration file:
D:\software\copyable\apache-jena-fuseki-3.9.0\run\config.ttl
[2018-12-12 14:30:23] riot WARN [line: 5, col: 9 ] Bad IRI:
<D:\software\copyable\apache-jena-fuseki-3.9.0\run\config.ttl#> Code:
4/UNWISE_CHARACTER in PATH: The character matches no grammar rules of
URIs/IRIs. These characters are permitted in RDF URI References, XML system
identifiers, and XML Schema anyURIs.
[2018-12-12 14:30:23] Config INFO Load configuration:
file:///D:/software/copyable/apache-jena-fuseki-3.9.0/run/configuration/mySpatialDataset.ttl
[2018-12-12 14:30:23] Config INFO Register: /mySpatialDataset
[2018-12-12 14:30:23] Server INFO Apache Jena Fuseki
[2018-12-12 14:30:23] Server INFO Configuration file
D:\software\copyable\apache-jena-fuseki-3.9.0\run\config.ttl
[2018-12-12 14:30:23] Server INFO Path = /mySpatialDataset; Services
= [data, quads, upload, query, sparql, update, get]
[2018-12-12 14:30:23] Server INFO Fuseki: 3.9.0
[2018-12-12 14:30:23] Server INFO Java: 1.8.0_131
[2018-12-12 14:30:23] Server INFO Memory: max=1,0 GiB
[2018-12-12 14:30:23] Server INFO OS: Windows 10 10.0 amd64
[2018-12-12 14:30:24] Server INFO Started 2018/12/12 14:30:24 CET on
port 3030
